HORN ARCHITECTS

SPECIFICATION MANUAL

Volume 2 of 2

Additions and Alterations for

SCENIC REGIONAL LIBRARY, HERMANN BRANCH 123 Bavarian Hills Plaza Hermann Missouri 65041 August 12, 2021

HORN ARCHITECTS 3 Lafayette Street, Suite 200 • Washington, MO 63090• 636-239-0309•

Addition and Alterations for

SCENIC REGIONAL LIBRARY, HERMANN BRANCH

Table of Contents

VOLUME 2 of 2 — BIDDING & GENERAL REQUIREMENTS

Division 21 – Fire Protection

211313 Wet Pipe Sprinkler System

Division 22 - Plumbing

220523 General Duty Valves for Plumbing Piping

220529 Hangers and Supports for Plumbing Piping and Equipment

220553 Identification for Plumbing Piping and Equipment

220719 Plumbing Piping Insulation

221116 Domestic Water Piping

221316 Sanitary Waste and Vent Piping

221616 Natural/Liquid Petroleum Gas Piping

224000 Plumbing Fixtures

Division 23 Heating, Ventilating and Air Conditioning

230500 Basic Mechanical Requirements

230529 Hangers and Supports for HVAC Piping and Equipment

230593 Testing, Adjusting and Balancing for HVAC

230713 Duct Insulation

233113 Low Pressure Ductwork

233713 Diffusers, Registers and Grilles

Division 26 - Electrical

260500 Basic Electrical Requirements

260519 Low-Voltage Electrical Power Conductors and Cables

260526 Grounding for Electrical Systems

260533 Conduit, Boxes and Raceways

260553 Electrical Identification

262416 Service and Distribution

262726 Wiring Devices

265100 Lighting Fixtures

Division 28 - Electronic Safety and Security

283111 Fire Alarm and Detection System

DIVISION 31 EARTHWORK

31 20 00 Earth Moving

31 50 00 Excavation Support and Protection

DIVISION 32 EXTERIOR IMPROVEMENTS

32 12 16 Asphalt Paving

32 13 13 Concrete Paving

32 13 19 Decorative Metal Railings and Fences

32 17 23 Pavement Markings

DIVISION 33 SITE UTLITIES

33 41 00 Storm Drainage

33 51 00 Sanitary Sewer

Scenic Regional Library, Hermann Branch

DESIGN MECHANICAL INC WET-PIPE FIRE SPRINKLER SYSTEM8/2021 211313- 1

SECTION 211313 - WET-PIPE SPRINKLER SYSTEM

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor:

1. Modify existing fire sprinkler system as required provide coverage for the areashown on the drawings.

2. Furnish and install a complete hydraulically designed wet-pipe fire protectionsystem as specified herein, and as needed for a complete and proper installation.

3. Fire Protection System shall integrate with the building fire and smoke alarmsystem.

4. Obtain all approvals and permits required.

1.2 QUALITY ASSURANCE

A. All work shall be done in accordance with NFPA 13, "Installation of Sprinkler Systems",Factory Mutual (FM), Owner’s insurance underwriter and the Authority HavingJurisdiction (AHJ).

B. Contractor shall be a qualified fire protection contractor regularly engaged in the designand installation of automatic fire protection systems and other fire protection equipmentand shall be approved for work by the AHJ.

D. Materials and Equipment shall be approved by Underwriter’s Laboratories (UL) andFactory Mutual (FM).

1.3 SUBMITTALS

A. Submit the following:1. Product Information2. Provide final design drawings including hydraulic calculations, stamped as having

been approved by the Authority Having Jurisdiction, showing the complete firesprinkler system and indicating ceiling air diffusers, lighting fixtures, and beams.

3. Details and sections as necessary to clarify the design.

2.0 PRODUCTS

2.1 GENERAL DESIGN

A. Provide a design, which is complete in all regards including, but not necessarily limited to:1. Underground piping pertaining to the work of this Section including required pipe,

valves, trenching, back-filling, and similar items;2. Connection to utility main including required valves, fittings, and similar items;3. Overhead sprinkler system.

B. Layout:1. In areas having ceilings, conceal all pipes.2. In storage areas, service areas and other areas approved by the

Architect/Engineer, pipe may be exposed but hold to the minimum practicabledistance below the deck.

3. Center sprinkler heads in ceiling tiles to within 3-inches of center.



4. Inspector test connection and auxiliary drains shall be piped to unoccupiedspaces (i.e. mechanical rooms, janitor’s closets, etc.)

C. System shall be hydraulically calculated and based on the following, subject to theapproval of the Authority Having Jurisdiction.1. Occupancy Classification: Light Hazard except in Storage Rooms and

Mechanical Rooms which will be Ordinary Hazard, Group 12. Minimum Density: 0.10 gpm/sq. ft. over the most remote 1,500 sq. ft. for Light

Hazard areas and 0.15 gpm/sq.ft for Ordinary, Group 1 areas.3. Maximum coverage per head: 225 sq. ft. for light hazard areas, and 130 sq. ft. for

Ordinary, Group 1 areas4. Total hose stream allowance: 100/250 gpm5. Maximum pipe velocities shall not exceed 20 ft/s in any portion of the piping

system unless approved by the A/E.

2.2 MATERIALS

A. Pipe

1. Underground:

a. Ductile iron pipe with push-on joints, standard thickness, standard 350psig pressure rating per ANSI/AWWA A21.51/C151, tar coated outside,cement motor lined inside per ANSI A21.4. Fittings shall be mechanicaljoint, 250 psig pressure rating per ANSI A21.11.

2. Inside Building:

a. 2-inch and smaller: Schedule 40, ASTM A-53 black steel pipe withthreaded joints, welded joints or UL/FM approved mechanical groovedcouplings. Grooves shall be rolled or cut and shall be dimensionallycompatible with coupling.

b. 2 ½-inch and larger: Schedule 10, ASTM A-135 black steel pipe withwelded joints or UL/FM approved mechanical grooved couplings.Grooves shall be rolled and shall be dimensionally compatible withcoupling.

c. Pipe Drops and Arm Overs: VicFlex Series AH1/AH2/AH4 flexiblebraided stainless steel hose and fittings.

d. Ceiling Bracket: VicFlex Style AB7 or AB7 adjustable.

I. Spare Head Cabinet: Provide a spare head cabinet at the service entrance stocked withsprinkler head wrench(es) and spare sprinkler heads. Provide a minimum of two (2) ofeach type of sprinkler head. Where this quantity is less than what is required by NFPA,provide additional heads in proportion to the types and temperatures utilized throughoutthe building.

J. Sprinkler heads:1. All sprinkler heads shall be quick response, liquid in glass bulb type, with a

minimum of ½-inch orifice, ½-inch NPT and a K factor of 5.5. Sprinklers that havean orifice larger than ½-inch shall be ¾-inch NPT.

2. In areas with ceilings, concealed sprinklers shall be used.



3. In unfinished spaces or in concealed locations, upright and pendent sprinklerheads with a natural brass finish shall be used.

5. Temperature range and response time shall be suitable for the location and theexpected heat release. Within a space all sprinklers should be the sameTemperature range and Response Time to avoid “skipping”.

K. Provide supports, hangers, inserts, and associated items to properly support sprinklerpiping in accordance with pertinent provisions of NFPA 13.

3.0 EXECUTION

3.1 INSTALLATION

A. Install fire sprinkler system in accordance with NFPA 13 and the Authority HavingJurisdiction (AHJ).

3.2 TESTING AND ACCEPTANCE

A. Upon completion of the installation, provide necessary personnel and equipment and testand retest the complete system, making adjustments as required, and secure allnecessary approvals.

B. When the system has been completely approved, secure a letter of final acceptance fromthe Authority Having Jurisdiction (AHJ) and forward two copies of the letter to theArchitect/Engineer.


DESIGN MECHANICAL INC GENERAL DUTY VALVES FOR PLUMBING8/2021 220523 - 1

SECTION 22 05 23 - GENERAL DUTY VALVES FOR PLUMBING

1.0 GENERAL

1.1 WORK INCLUDES

A. Base Bid:

1. Contractor provide:

A, Valves where shown on the Drawings and described herein.


A. All equipment and materials shall be new and of first quality. Manufactured products shallbe Manufacturer's standard product with specified options but shall not be field or factorymodified unless specified.

B. All materials and equipment shall bear the Manufacturer's nameplate or marking withtype, size, catalog numbers and ratings as appropriate.

C. Pressure and Temperature Ratings:1. Cast Iron: ANSI/ASME B16.1, Cast Iron Pipe Flanges and Flanged Fittings.2. Steel: ANSI/ASME B16.34, Valves – Flanged, Threaded, and Welding End.3. Bronze: ANSI/ASME B16.24, Bronze Pipe Flanges and Flanged Fittings; Class

150 and 300.

1.3 SUBMITTALS

A. Shop Drawings: Not required for A/E review

B. Product Data: Provide manufacturer’s product data on all valves

2.0 PRODUCTS

2.1 GENERAL

A. Insofar as possible, valves of the same type to be by the same manufacturer but notto the extent of sacrificing quality specified; intent is to provide most suitable valve foreach service.

B. End Styles shall be compatible with piping systems served.

C Use ball valves exclusively unless otherwise specified.

2.2 POTABLE WATER SERVICE VALVES

A. Ball Valves (2-inch and smaller)

1. Brass/Bronze Body2. Stainless Steel Ball & Stem3. Full Port4. Rated for a minimum 600 PSI CWP.



5. Lead free suitable for use with domestic water.6. Manufacturer:

a. Nibco T585-66-LF/S585-66-LFb. Apollo 77FLF-140 Series

B. Swing Check Valves (2-inch and smaller)

1. Horizontal swing type (can be installed in vertical/upflow position), Regrindingtype, Y-Pattern

2. Class 125 (125 psi saturated steam)/200 psi CWP3. Bronze lead free body4. Bronze lead free disk5. Threaded ends6. Renewable seat and disc7. Suitable for use with domestic water.8. Manufacturer:

a. Nibco T-413-Y-LFb. Apollo 161T-LF

C. Butterfly Valves (2-1/2” and Larger)

1. Minimum 200 psi rating2. Ductile Iron Body3. Lug Type4. EPDM Liner5. Aluminum Bronze Disk6. Standard lever-lock operator7. Lead free suitable for use with domestic water.8. Manufacturer:

a. Nibco LD-2000b. Apollo LD141

2.3 NATURAL/LP GAS SERVICE VALVES

A. Ball Valves (3-inch and smaller)

1. Two piece Bronze body ball valve with large port2. UL listed Gas Shut-off Valve for use with Natural/LP Gas.3. 600 PSI CWP/250 psig LP Gas4. Approved Manufacturers

1. Apollo 80-100 Series or approved equal

3.0 EXECUTION

3.1 GENERAL

A. Valves shall be installed at all points indicated on the Drawings.

B. All valves shall be installed with stems vertical upright to horizontal wherever possibleand shall not be installed with stems below horizontal under any condition.

C. Keep valves clear of tube pull spaces and maintenance spaces.

D. Install valves accessible for operation, inspection and repair.

E. Provide globe valve in bypass around control valves.



F. Provide shut-off on each side of control valves.

G. Support valves individually to relieve pipe stress and allow equipment removal.

H. Follow manufacturer’s recommendation for disassembly of valves for end joining methodemployed.


DESIGN MECHANICAL INC HANGERS AND SUPPORTS FOR PLUMBING PIPING8/2021 220529- 1

SECTION 22 05 29 - HANGERS AND SUPPORTS FOR PLUMBING PIPING

1.0 GENERAL

1.1 DESCRIPTION

A. Base Bid

1. Contractor:

a. Provide pipe hangers, supports, concrete inserts and anchor boltsincluding all metallic hanging and supporting devices for supportingexposed piping.

1.2 REFERENCES

A. American National Standards Institute, ANSI:

1. ANSI B31.1: Power Piping.

B. Manufacturers Standardization Society of the Valve and Fittings Industry, MSS, 1815North Fort Myer Drive, Arlington, VA 22209.

1. MSS SP-58: Pipe Hangers and Supports - Materials, design and Manufacturer.2. MSS SP-69: Pipe Hangers and Supports - Selection and Application.

C. Underwriter's Laboratories/Factory Mutual, UL/FM:

1. Provide products UL listed and FM approved.

D. International Plumbing Code

2.0 PRODUCTS

2.1 GENERAL

A. All materials used in manufacturing hangers and supports shall be capable of meetingthe respective ASTM Standard Specifications with regard to tests and physical andchemical properties and shall be in accordance with MSS SP-58.

B. Select matching components sized to exactly fit pipe size for bare piping or to exactly fitaround pipe insulation with saddle and shield for insulated piping.

C. Use only one type by one manufacturer for each piping service.

D. Hanger material shall be compatible with the pipe material. Provide copper platedcomponents for copper piping systems.

E. All hangers and supports shall have some form of adjustment available after installation.

F. Acceptable Manufacturers:

1. B-Line Systems, Inc.2. ITT Grinnell Corp.



3. PHD Mfg.4. Approved equal

2.2 PIPE HANGERS AND SUPPORTS

A. Suspended single pipes shall be supported by hangers suspended by steel rods fromconcrete inserts, beam clamps, or ceiling mounting bolts as follows:

PipeSize Item Application

MSSType

GrinnellType

B-LineType

All AdjustableClevis Hanger

Steel pipe, not subject toexpansion or contraction

1 260 B3100

All Roller Hanger Steel pipe, subject to ½” ormore longitudinal thermalexpansion

4341

601603

B3110B3114

All AdjustableRing

Copper Tube 10 CT-99 B3170CT

All All ThreadedRod

Hanger Rods 253 B3205

All Beam Clamps C-Clamp with locknuts 23 95 or86

B351L orB3036L

All Riser Clamp Steel – support vertical pipingruns

8 261 B3373

All Riser Clamp Copper–support vertical pipingruns

8 CT-121 B3373CT

All Pipe Clamps To provide flexibility in hangerassembly due to horizontalmovement

4433

212216295

295H

B3140B3142B3144B3146

2.3 TRAPEZE HANGERS

A. Strut channel trapeze hangers shall be used to support parallel piping runs. Pipe racks orstanchions fabricated with strut channel shall be used in areas of multiple pipe runs. Strutclamps, straps, and rollers shall be used to maintain proper alignment.

1. Strut shall be B-Line B22 or heavier as required or equal.2. Clamps and straps shall be B-Line B2000 series, B2400 series or equal.3. Rollers shall be B-Line B218, B219, B379, B479, B3126 or equal.

2.4 STANCHIONS

A. Floor mounted pipes 3” and larger in diameter shall be supported by either cast-in-placeconcrete supports or adjustable pipe saddle supports. In general, concrete supports shallbe used when lateral displacement of the pipe is probable (unless lateral support isprovided), and adjustable pipe saddle supports shall be used where lateral displacementof the pipe is not probable.

1. Each adjustable pipe saddle support shall be screwed or welded to thecorresponding size base stand. Supporting pipe shall be schedule 40 steel pipeconstruction. Each base stand shall be secured to the concrete floor byexpansion bolts.



2. Adjustable saddle supports shall be B-Line B3093 with B3088T or B3090 withB3088 or equal.

2.5 WELDED STEEL ANGLE BRACKETS

A. Wall or column supported pipes shall be supported by welded steel brackets equal to B-Line B3063 (light duty), B3066 (medium duty) and B3067 (heavy duty) or equal asrequired for pipe sizes up to and including 20: diameter.

2.6 SADDLES AND SHIELDS

A. Provide properly sized saddles or shields under piping hangers and supports, factory-fabricated, for all insulated piping.

B. Types:

1. Protection Saddles: MSS Type 39; fill interior voids with segments of insulationmatching adjoining insulation. Saddles shall be B-Line B3160 thru B3165 orequal.

2. Protection Shields: MSS Type 40 with loc tab; length recommended bymanufacturer to prevent crushing insulation. Shields shall be B-LineB3153/B3155 or approved equal.

3. Thermal Hanger Shields:

a. Constructed of 360' insert of high density, l00 psi, waterproofed calciumsilicate, encased in 360' sheet metal shield.

b. Provide assembly of same thickness as adjoining insulation.c. Shields shall be B-Line B3380 thru B3384 or equal.

2.7 CONCRETE INSERTS

A. Concrete inserts for pipe hangers shall be, continuous metal or spot inserts designed tobe used in ceilings, walls or floors.

1. Continuous concrete inserts shall be used where applicable and shall be used forhanger rod sizes up to ¾” diameter. Inserts to be used where supports areparallel to the main slab reinforcement shall be B-Line B22I, B32I, B52I or equal.

2. Spot concrete inserts shall be used where applicable and shall be used forhanger sizes up to and including 7/8” diameter. Inserts shall be B-Line B2505thru B2508, B2500, B2501, B3014 or equal.

2.8 SLEEVES

A. Pipes through Floors Where No Plumbing Fixtures are Installed: 18 gauge galvanizedsteel.

B. Pipes through beams, Walls, Fireproofing, Footings, and Potentially Wet Floors:Schedule 40 steel pipe or 18 gauge galvanized steel.

C. UL Labeled Sleeves: Prefabricated with insulation and fireproofing.

D. Round Ducts: Galvanized steel.



E. Rectangular Ducts: Galvanized steel.

F. Sleeves Through Fire and Smoke Walls: Provide fire caulking in accordance with NFPA90A to preserve the same fire rating as the partition being penetrated.

G. Size sleeves to allow for expansion movement and to provide for continuous insulation.

H. Contractor Provide: Prefabricated Wall Penetration Seals: Modular mechanical type;interlocking synthetic rubber links filling annuler space between pipe and wall opening.

1. Manufacturer:a. Thunderline Corp.: Link-Sealb. Mason Industries: SPS

2. Bolt and pressure plate fasteners and rubber seal provide watertight sealbetween pipe and wall.

3. Seal provides electrical insulation between pipe and wall.

2.9 VIBRATION DAMPENING TUBING CLAMPS (STRUT MOUNTED)

A. For refrigeration, air conditioning, hydraulic, pneumatic and domestic water applicationsuse a vibration-dampening clamp in strut-mounted applications. For copper and steeltubing sizes use B-Line BVT series clamps (Vibra-Clamp) or equal or B-Line series Vibra-Cushion with B2000 series clamps or equal.

2.10. PIPE ALIGNMENT GUIDES

A. Provide factory-fabricated cast semi-steel or heavy fabricated steel; including bolted 2-section outer cylinder and base with 2-section guiding spider bolted tight to pipe.

1. Size guide and spiders to clear pipe, insulation, and cylinder.2. Guide Length: Recommended by manufacturer to allow indicated travel.3. Pipe alignment guides shall be B-Line B3281 thru B3287 or equal

2.11 MISCELLANEOUS SUPPORT MATERIALS

A. Metal Framing: NEMA Standard ML 1.

B. Steel Plates, Shapes and Bars: ANSI/ASTM A36.

3.0 EXECUTION

3.1 GENERAL

A. Comply with MSS SP-69 for installation of hangers, supports, anchors, inserts, et..

B. Install in accordance with manufacturer's recommendations and local Building Codes.

C. All pipe and tubing shall be supported as required to prevent significant stresses in thepipe or tubing material, valves, and fittings and to support and secure the pipe in theintended position and alignment.



D. All supports shall be designed to adequately secure the pipe against excessivedislocation due to thermal expansion and contraction, internal flow forces, and allprobable external forces such as equipment, pipe and personnel contact.


A. Install hangers, supports clamps, and attachments directly from building structurecomplete with inserts, bolts rods, nuts and washers, and accessories.

1. Do not use wire or perforated metal to support piping; pipe support from otherpiping not permitted.

2. Install hangers with minimum 1/2 inch clear space between finished covering andadjacent work.

3. Place hanger within 1 foot of each horizontal elbow.4. Use hangers vertically adjustable 1-1/2 inch minimum after piping is erected.

B. Horizontal Soil, Waste, and Storm Pipe Support: Near each hub, with 5 feet maximumspacing between hangers for cast iron pipe.

C. Fire Water Pipe Support: Independent of other piping.

D. Riser Pipe Support: Independent of connected horizontal piping where practical.

E. Prime Coat Finish

1. Prime coat all exposed steel hangers and supports before installation.2. Hangers and supports in crawl spaces, pipe shafts, and suspended ceiling

spaces are not considered exposed, and need be primed, only.

F. Vertical Piping:

1. Support vertical piping at every other floor.

G. Pipe Movement:

1. Install hangers and supports to allow controlled movement of piping systems; topermit freedom of movement between pipe anchors; and to facilitate action ofexpansion joints, expansion loops, expansion bends and similar units.

2. Load Distribution: Install hangers and supports so piping live and dead loadingand stresses from movement is not transmitted to connected equipment.

3. Pipe slopes:a. Install hangers and supports to provide indicated pipe slopes.b. Do not exceed maximum pipe deflections allowed by ANSI B31.

H. Pipe Guides: Install pipe guides near expansion loop, expansion joints and ball joints,unless indicated otherwise.

I. Electrolysis: Prevent electrolysis in copper tubing support with copper-plated hanger andsupports or other recognized industry methods.

J. Steel Joists: Connect all hangers and attachments to bottom chord of all steel joists orbeams.

K. Insulated Piping:



1. Clamps:

a. Attach clamps, including spacers, to piping with clamps projectingthrough insulation.

b. Do not exceed ANSI B31 pipe stresses.

2. Shields:

a. Where low-compressive-strength insulations vapor barriers are specifiedon cold or chilled water piping, install coated protective shields.

b. For pipe 8 inches and over, install wood insulation saddles.

3. Saddles: Where insulation without vapor barrier is indicated, install protectionsaddles.

3.3 PIPE HANGER AND SUPPORT SPACING

A. Space hangers and supports in accordance with MSS SP-69, local Building Codes andthe following schedule, whichever is more stringent:

Pipe Size RodDiameter

Max. HangerSpacing

Steel Pipe1 ¼” and smaller 3/8” 8’ oc1 ½” & 2” 3/8” 10’ oc2 ½” and 3” 1/2” 10’ oc4” & 5” 5/8” 10’ oc6” 3/4” 10’ oc8” to 12” 7/8” 10’ oc

Copper Tube1” & smaller 3/8” 8’ oc1 ¼” and 2” 3/8” 10’ oc2 ½” and 3” 1/2” 10’ oc4” & 5” 5/8” 10’ oc6” 3/4” 10’ oc8” to 12” 7/8” 10’ oc

Plastic Pipe1” & smaller 3/8” 4’ oc1 ¼” - 2” 3/8” 4’ oc3” 1/2” 4’ oc4” 5/8” 4’ oc6” and larger 3/4” 4’ oc

B. Install additional hangers and supports when supporting additional concentrated loads;including valves, flanges, guides, strainers, expansion joints and at changes in pipingdirection.

3.4. ANCHORS

A. Install anchors at locations preventing stresses from exceeding ANSI B31; andpreventing transfer of loading and stresses to connected equipment.



1. Install anchors at ends of principal pipe-runs and at intermediate points in pipe-runs between expansion loops and bends.

2. Preset anchors to accommodate both expansion and contraction of piping.

B. Fabricate and install anchor by welding steel shapes, plates and bars to piping andstructure in compliance with ANSI B31 and AWS.

C. Anchors for Expansion Compensators: Install anchors in accordance with expansion unitmanufacturer's recommendations.

a. Limit movement of piping and forces to maximums recommended bymanufacturer for each unit.

3.5 ADJUSTING AND CLEANING

A. Adjust hangers and supports and place grout under supports to bring piping to properlevels and elevations.


DESIGN MECHANICAL INC IDENTIFICATION FOR PLUMBING PIPING8/2021 220553 - 1

SECTION 22 05 53 - IDENTIFICATION FOR PLUMBING PIPING

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor:

1. Provide identification for all mechanical systems including but not limited to thefollowing:

a. Pipingb. Valvesc Pumps

2. Identification shall indicate material being transported and direction of flow.


A. Regulatory Requirements:

1. Comply with the International Plumbing Code.

1.3 REFERENCES.

A. American National Standards Institute (ANSI):

1. A13.1 - Identification of Piping Systems.2. Z53.1 - Safety Color Code for Marking Physical Hazards.

2.0 PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. EMED Company, 330 Green St., Box 369, Buffalo, NY, 14240.

B. Seton Name Plate Corporation, New Haven, CT, 06505.

C. W.H. Brady Co. Signmark Division, 727 W. Glendale Ave., P.O. Box 571, Milwaukee,Wisconsin, 53201.

D. National Marker Company, P.O. Box 1659, Pawtucket, RI, 06862.

E. R. K. Industries, 1501 Virginia Ave., Baldwin Park, CA 91706.

F. Carlton Industries, Inc., P.O. Box 280, Lagrange, TX, 78945.


DESIGN MECHANICAL INC IDENTIFICATION FOR PLUMBING PIPING8/2021 220553 - 2

2.2 MECHANICAL SYSTEM COLOR IDENTIFICATION

A. Use pipe makers to identify the following:1. Domestic Cold Water (CW) Piping2. Domestic Hot Water (HW) Piping3. Domestic Hot Water Return (HWR) Piping4. Natural Gas

3.0 EXECUTION

3.1 INSPECTION

A. Inspect equipment to be labeled and ensure that equipment is in proper condition forapplication of markers.

3.2 INSTALLATION

A. Placement - Provide Identification Markers:

1. On all exposed covered and uncovered pipes at a minimum of 50 foot intervals.2. On all branches and valves.3. On both sides of walls where pipes pass through wall.4. At changes of flow direction.

B. Ensure that identification markers are proper size and material to properly and clearlyidentify items as recommended by Marker Manufacturer and in accord with specifiedregulatory requirements.


DESIGN MECHANICAL INC PLUMBING PIPING INSULATION8/2021 220719- 1

SECTION 220719 - PLUMBING PIPING INSULATION

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor:

1. Provide insulation on the following piping systems:

a. Domestic Water Piping (Hot, Cold and Hot Water Return)


A. American Society for Testing and Materials, ASTM:a. Flame spread rating: 25 or less, ASTM E84.b. Smoke developed rating: 50 or less, ASTM E84.

B. National Fire Protection Association, NFPA:a. NFPA 255: Test Methods Surface Burning - Building Materials.

1.3 SUBMITTALS

A. Shop Drawings: Not required for A/E Review

B. Product Data:1. Indicate complete material data, mastics, and adhesives.2. List materials proposed for this project and indicate thickness of material for

individual services.

1.4 PROJECT CONDITIONS

A. Install adhesives at ambient and equipment temperatures recommended by adhesivemanufacturer.

2.0 PRODUCTS

2.1 FIBERGLASS PIPE INSULATION:

A. Insulation:

1. Fiberglass, heavy density, minimum of 3.7 lbs./cu.ft. density.2. One (1) piece rigid molded3. K value of 0.23 @ 75F, suitable for temperatures of -40F. to 450F.

B. Jacket:

1. Factory-applied vapor barrier, all-serivce type with self-sealing lap and butt strips.

C. Manufacturers:

1. Knauf2. Manville Corp



3. Owens-Corning

2.2 ELASTOMERIC INSULATION

A. Acceptable Manufacturers

1. Insulation material shall be a flexible, closed-cell elastomeric insulation in tubularor sheet form: APArmaflex, APArmaflex W, APArmaflex SS, or APArmaflex SA.This product meets the requirements as defined in ASTM C 534, “Specificationfor preformed elastomeric cellular thermal insulation in sheet and tubular form.”

B. General

2. Insulation materials shall have a closed-cell structure to prevent moisture fromwicking which makes it an efficient insulation.

3. Insulation material shall be manufactured without the use of CFC’s, HFC’s orHCFC’s. It is also formaldehyde free, low VOC’s, fiber free, dust free and resistsmold and mildew.

4. Materials shall have a flame spread index of less than 25 and a smoke-developed index of less than 50 when tested in accordance with ASTM E 84,latest revision. In addition, the product, when tested, shall not melt or drip flamingparticles, the flame shall not be progressive and all materials shall passsimulated end-use fire tests.

5. Materials shall have a maximum thermal conductivity of 0.27 Btu-in./h-ft2- °F at a75°F mean temperature when tested in accordance with ASTM C 177 or ASTMC 518, latest revisions.

6. Materials shall have a maximum water vapor transmission of 0.08 perm-incheswhen tested in accordance with ASTM E 96, Procedure A, latest revision.

7. The material shall be manufactured under an independent third party supervisiontesting program covering the properties of fire performance, thermal conductivityand water vapor transmission.

C. Adhesives and Finishes

A. Adhesive shall be the insulation manufacturer's recommended contact adhesive:Armaflex 520, Armaflex 520 BLV or Armaflex HT 625 Adhesive.

B. Insulation finish shall be the insulation manufacturer's recommended finish:Armaflex WB Finish.

C. Accessories such as adhesives, mastics and cements shall have the sameproperties as listed above and shall not detract from any of the system ratings asspecified above.

3.0 EXECUTION

3.1 PREPARATION

A. Before covering, test and approve piping.

B. Entire surface shall be clean and dry at time of installation.



1. Insulation: dry before and during application.2. Finish with systems at operating conditions.

3.2 GENERAL

A. Maintain continuous insulation runs through walls and floors, and at all sleeves andhangers.

B. All fittings, valve bodies, elbows, etc. shall be wrapped with insulation.

1. Do not insulate unions, flanges, strainers, flexible connections, or expansionjoints.

C. Finish insulation neatly at hanger, supports and other protrusions or interruptions.

D. Ensure hangers and cradles are properly installed to avoid crushing insulation.

E. Locate insulation or cover seams in least visible locations.

F. Install protective metal shields and insulated inserts to prevent insulation compression.

3.3 INSTALLATION (ARMAFLEX)

A. Piping:

1. Install pipe insulation by slitting tubular sections and applying onto piping ortubing. Alternately, whenever possible, slide unslit sections over the open ends ofpiping or tubing. All seams and butt joints shall be adhered and sealed usingArmaflex 520 or 520 BLVAdhesive. When using AP Armaflex SS, only the buttjoints shall be adhered using Armaflex 520 or 520 BLVAdhesive. Armaflex HT625 Adhesive shall be used with HT Armaflex.

2. Insulation shall be pushed onto the pipe, never pulled. Stretching of insulationmay result in open seams and joints.

3. Tape the ends of the copper tubing before slipping the Armaflex insulation overthe new pipes to prevent dust from entering the pipe.

4. All edges shall be clean cut. Rough or jagged edges of the insulation shall notbe permitted. Proper tools such as sharp non-serrated knives must be used.

5. On cold piping, insulation shall be adhered directly to the piping at the high endof the run using a two-inch strip of Armaflex 520 or 520 BLVAdhesive on the IDof the insulation and on the pipe. All exposed end cuts of the insulation shall becoated with Armaflex 520 or 520 BLVAdhesive. All penetrations through theinsulation and termination points must be adhered to the substrate to preventcondensation migration.

6. Sheet insulation shall be used on all pipes larger than 6² IPS. Insulation shall notbe stretched around the pipe. On pipes larger than 12² IPS, adhere insulationdirectly to the pipe on the lower 1/3 of the pipe. On pipes greater than 24² IPS,complete adhesion is recommended.

7. Seams shall be staggered when applying multiple layers of insulation.



B. Valves, Flanges and Fittings:

1. All fittings shall be insulated with the same insulation thickness as the adjacentpiping. All seams and mitered joints shall be adhered with Armaflex 520 or 520BLVAdhesive. Screwed fittings shall be sleeved and adhered with a minimum 1²overlap onto the adjacent insulation. Armaflex HT 625 Adhesive shall be usedwith HT Armaflex.

2. Valves, flanges, strainers, and Victaulic couplings shall be insulated usingArmaflex donuts that shall then be covered with sheet or oversized tubularinsulation.

C. Hangers:1. Support piping system using high density inserts with sufficient compressive

strength. The pipe support insulation shall be elastomeric foam with the same orgreater thickness than the pipe insulation. All joints shall be sealed with Armaflex520 or 520 BLV adhesive.

2. Standard and split hangers -- Piping supported by ring hangers shall havehangers insulated with the same insulation thickness as the adjacent pipe. Allseams and butt joints shall be sealed with Armaflex 520 or 520 BLVAdhesive.Armaflex HT 625 Adhesive shall be used with HT Armaflex. Ring hangers maybe sleeved using oversized tubular insulation. On cold piping, insulation shallextend up the hanger rod a distance equal to four times the insulation thickness.Insulation tape may be used to a thickness equal to the adjacent insulationthickness.

3. Clevis hangers or other pipe support systems -- Saddles shall be installed underall insulated lines at unistrut clamps, clevis hangers, or locations where theinsulation may be compressed due to the weight of the pipe. All piping shall havewooden dowels or blocks of a thickness equal to the insulation inserted andadhered to the insulation between the pipe and the saddle. It is highlyrecommended for continuous insulation protection to use hanger sizes equal tothe outer diameter of the pipe plus insulation thickness.

4. Armafix IPH or Armafix NPH can be used to prevent compression of insulation atstandard split, clevis hangers or other pipe support systems. To minimize themovement of Armafix, it is recommended that a pair of non-skid pads be adheredto the clamps. In addition, to prevent loosening of the clamps, use of anantivibratory fastener, such as a nylon-locking nut, is also recommended.



3.4 PIPE INSULATION SCHEDULE (Conductivity 0.21 – 0.28): Provide insulation according to thefollowing schedule unless otherwise noted on the drawings.

Service SystemTemp.

PipeSize

MinimumThickness

Domestic Hot Water and Hot WaterReturn

105F-140F Up to 1-1/4” 1”

1 ½ and up 1 ½”

Domestic Cold Water 40-55F All 1”


DESIGN MECHANICAL INC DOMESTIC WATER PIPING8/2021 221116 - 1

SECTION 22 11 16 - DOMESTIC WATER PIPING

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor:

1. Furnish and install domestic/potable water piping system complete with necessaryvalves, connections, and other appurtenances as required for a complete andproper system.

1.3 REFERENCES

A. American Society for Testing and Materials (ASTM)1. ASTM B 88, "Standard Specification for Seamless Copper Water Tube"

B. American Society of Mechanical Engineers (ASME)2. ASME B16.18, “Cast Copper Alloy Solder Joint Pressure Fittings”3. ASME B16.22, “Wrought Copper and Copper Alloy Solder Joint Pressure Fittings”


A. Comply with International Plumbing Code latest addition and amendments thereto.

2.0 PRODUCTS

2.1 PIPE

A. Copper meeting the requirements of ASTM B88.

1. Above-Grade: Type L copper.2. Below-Grade or below concrete slab:

a. 2” and smaller: Type K soft copper

B. Piping sizes shown on the drawings are nominal pipe sizes.

2.2. FITTINGS

A. Cast bronze or wrought copper fittings conforming to ASME B16.18 and B16.22.

2.3. JOINTS/CONNECTIONS

A. Above-Grade1. Sweat copper type with 95/5 or 96/4 Tin-Antimony solder or Silvabrite 100 solder.2. Use only lead-free solder conforming to ASTM B32.

B. Below-Grade1. Brazed using rods and flux suitable for intended service (Do not use rods

containing Cadmium).2. Joints under slab acceptable only if allowed by local codes.


DESIGN MECHANICAL INC DOMESTIC WATER PIPING8/2021 221116 - 2

3.0 EXECUTION

3.1 INSTALLATION

A. Above-Grade1. Install piping parallel to building walls at such heights as not to obstruct portion of

window, doorway, stairway or passageway.a. Where interference develops in field, offset or reroute piping as required

to clear such interferences.b. Consult Drawings for location of pipe spaces, ceiling heights, door and

window openings or other architectural details and report discrepanciesto the A/E, before installing piping.

2. Piping shall be securely hung and anchored, free to expand and contract quietly,without imposing strains on structure, piping, valves, devices, equipment. Pipingshall be run parallel or perpendicular to building lines.

B. Below-Grade1. Install piping under slabs without joints where possible.2. Insulate water piping buried within building perimeter with insulation suitable for

below grade application.3. Bury water piping six (6) inches minimum below bottom of slab and encase in two

(2) inches minimum of sand.

C. Locate cold water lines a minimum of six (6) inches from hot water lines.

D. Connections between dissimilar metals shall be separated by dielectric couplings.

E. Water piping shall vent through fixtures or equipment above or shall have accessiblemanual air vents at all high points.

F. Water piping shall drain completely through fixtures or shall have accessible drains at lowpoints.

G. All piping installed through fire-rated construction shall be fire caulked.

3.2 FIELD QUALITY CONTROL

A. System Pressure Test – To be completed before pipes are covered.1. Water supply system shall be tested and proved tight under water pressure at least

1-1/2 times the system pressure (minimum of 100 psi) for a minimum of 15minutes.

3.3 CLEANING

A. Sterilize potable water system with solution containing 200 parts per million minimum ofchlorine. Valve off and allow sterilization solution to remain for 3 hours.

B. After sterilization, flush solution from system with clean water until residual chlorine contentis less than 0.2 parts per million.


DESIGN MECHANICAL INC SANITARY WASTE AND VENT PIPING8/2021 221316-1

SECTION 22 13 16 - SANITARY WASTE AND VENT PIPING

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor

1. Furnish and install sanitary waste and vent piping systems within building andconnect to building sewer five (5) feet from outside of building as shown on plans.

2. Perform excavation and backfill required by work of this Section.

1.3 REFERENCES

A. American Society for Testing and Materials (ASTM)1. ASTM D 2665-98, Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic

Drain, Waste, and Vent Pipe Fittings.2. ASTM D 2949-98, Specification for 3.25-in Outside Diameter Poly (Vinyl Chloride)

(PVC) Plastic Drain, Waste, and Vent Pipe and Fittings.3. ASTM D 3311-94, Specification for Drain, Waste and Vent (DWV) Plastic Fittings

Patterns.4. ASTM D 2855-96, Standard Practice for Making Solvent-Cemented Joints with

Poly (Vinyl Chloride) (PVC) Pipe and Fittings.5. ASTM F 656-96, Specification for Primers for Use in Solvent Cement Joints of Poly

(Vinyl Chloride) (PVC) Plastic Pipe and Fittings.6. ASTM A 888-98e1, Specification for Hubless Cast Iron Soil Pipe and Fittings for

Sanitary and Storm Drain, Waste and Vent Piping Application.7. ASTM A 74-98, Specification for Cast Iron Soil Pipe and Fittings


A. Comply with the International Plumbing Code, latest edition and amendments thereto.

2.0 PRODUCTS

2.1 SANITARY DRAINAGE AND VENT PIPING

A. Underground and above-ground:

1. Pipe: Schedule 40 polyvinyl chloride (PVC) plastic pipe (Type DWV) meetingrequirements of ASTM D 2665 or ASTM D 2949.a. Fittings: Approved for installation with the piping material installed and

shall conform to ASTM D 3311 or ASTM D 2665.b. Joints: A purple primer that conforms to ASTM F 656 shall be applied and

the joints solvent–welded in accordance with ASTM D 2855.

B. In Air Plenum:

1. General:

a. All materials exposed in air plenums must have a Flame Spread Index



(FSI) of 25 or less and a Smoke Developed Index (SDI) of 50 or less astested in accordance with ASTM E84.

2. Pipe Materials:

a. No-Hub Cast Iron meeting requirements of ASTM A 74 or ASTM A 888.

b. Schedule 40 polyvinyl chloride (PVC) plastic pipe (Type DWV) meetingrequirements of ASTM D 2665 or ASTM D 2949 (of the self extinguishingtype with an average extent of burn not greater than 10 mm and anaverage time of burn not greater than 20 seconds when tested accordingto ASTM D 635) covered with at least 1-inch of noncombustible insulation.

3.0 EXECUTION

3.1 INSTALLATION

A. Grade soil and waste lines within building perimeter as follows:1. Pipe less than 2” in diameter: minimum 1/4 inch fall per ft in direction of flow.2. Pipe 3” to 8” in diameter: minimum 1/8 inch fall per ft in direction of flow.

B. Install piping with cleanouts installed as follows1. Where shown on Drawings and near bottom of each stack and riser.2. At every 135 degrees of accumulative change in direction for horizontal lines.3. Every 50 feet of horizontal runs.4. Extend piping to accessible surface. Do not install piping so cleanouts must be

installed in carpeted floors. In such locations, configure piping so wall typecleanouts may be used.

C. Each fixture and appliance discharging water into sanitary sewer or building sewer linesshall have seal trap in connection with complete venting system so gasses pass freely toatmosphere with no pressure or syphon condition on water seal.

D. Vent entire waste system to atmosphere. Discharge 14 inches above roof. Join vent linestogether in fewest practicable numbers before projecting above roof. Set back vent lines sothey will not penetrate roof near edge or valley.

E. Piping shall be securely hung and anchored, free to expand and contract quietly, withoutimposing strains on structure, piping, valves, devices, equipment. Piping shall be runparallel or perpendicular to building lines.

F. All piping installed through fire-rated construction shall be fire caulked with an approvedmaterial.

G. Minimum size of waste piping installed under floor slab on grade shall be 2-inches.

3.2 EXCAVATION AND BACKFILLING

A. Depth of bury of cover over exterior underground piping shall not be less than 4’-0”unless otherwise noted.

B. Contractor shall do excavating required to install his work, including pockets as requiredfor fittings, etc., and after same are in place and tested and approved, he shall replacedrives, curbs and remove surplus earth and debris from the premises as directed by A/E.



C. Backfill under concrete and within 5'-0" of same shall be thoroughly compacted sand orsmall size gravel. All other backfill shall be free of debris, rock, concrete, etc. and settledwith water in layers as directed by A/E. No materials except clean sand shall be placedwithin 6" of any pipe.

D. Excessive excavations, excavations required to reach undisturbed soil, lower trenches,etc., shall be filled with thoroughly water compacted sand or small size gravel to provideadequate bedding and support.

E. Pipe shall be firmly and uniformly bedded throughout its total length on 3" minimumcompacted sand or gravel.

F. Backfill shall be 6" minimum compacted sand or gravel on sides and top.

G. No trenches shall be filled until work had been inspected and approved by A/E.

3.3 TESTING

A. Site Tests - After backfilling and compacting is complete but before placing floor slab,conduct tests for leaks and defective work. Notify Architect prior to testing. Fill waste andvent system to roof level with water, 10-foot head of water minimum, and show no leaks fortwo (2) hours. Correct leaks and defective work.


DESIGN MECHANICAL INC NATURAL/LIQUID PETROLEUM GAS PIPING8/2021 221616 - 1

SECTION 22 16 16 - NATURAL/LIQUID PETROLEUM GAS PIPING

1.0 GENERAL

1.1 WORK INCLUDES

A. Base Bid:

1. Plumbing Contractor: Furnish and install gas piping and fittings as described inContact Documents.

1.2 REFERENCES.

A. American Society for Testing and Materials

1. ASTM A53-90b, “Specification for Pipe, Steel, Black & Hot-Dipped Zinc-CoatedWelded & Seamless”.

2. ASTM A234-92a, “Specification for Piping Fittings of Wrought Carbon Steel andAlloy Steel for Moderate and Elevated Temperatures.

3. ASTM D2513-93a, Standard Specification for Thermoplastic Gas Pressure Pipe,Tubing, and Fittings”.


A. Qualifications – Welders shall be certified and bare evidence of certification 30 daysbefore commencing work on project. If there is doubt as to proficiency of welder,Contracting Officer may require welder to take antoher test. This shall be done at no costto Government. Certification shall be by Pittsburgh Testing Laboratories or otherapproved authority.

2.0 PRODUCTS

2.1 PIPE & FITTINGS

A. Above-Ground:

1. Pipe: Black carbon steel, Schedule 40 pipe meeting requirements of ASTM A53.

2. Joints & Fittings:

a. 2“ and smaller: Joints shall be threaded. Fittings shall be wrought-steelwith dimensions and tolerances conforming to ANSI B16.11. Unions shallbe wrought steel. Threaded joints shall be made up with thread compoundsuitable for use with natural/LP gas.

b. 2 ½” and larger: welded steel fittings matching pipe as to finish,construction and working pressure. Welding to be done only by certifiedwelders in compliance with current codes.


DESIGN MECHANICAL INC NATURAL/LIQUID PETROLEUM GAS PIPING8/2021 221616 - 2

B. Below-Ground:

1. Pipe & Fittings – Polyethylene pipe and fittings meeting requirements of ASTMD2513.

3.0 EXECUTION

3.1 INSTALLATION

A. Steel pipe installed through air plenums, in walls, and pipes 2-1/2 inches and larger shallhave welded fittings and joints. Other steel pipe may have screwed or welded fittings.

B. Install gas cocks on lines serving gas-fired equipment adjacent to equipment, on outsideof equipment cabinet, and easily accessible.

C. Do not use flexible pipe connections to gas-fired equipment.

D. Install 6 inch long minimum dirt leg, with pipe cap, on vertical gas drop serving each gas-fired equipment unit.

E. Use fittings for changes of direction in pipe and for branch runouts.

F. Lay underground ippe in accordance with Manufacturer’s recommendations and local gassuppliers regulations and specifications.


A. Site Tests – Before pipes are buried or concealsed frm view, test systems at 60 psig for 4hours and show no drop in pressure. Submit test results to Contracting Officer.


DESIGN MECHANICAL INC PLUMBING FIXTURES8/2021 224000 - 1

SECTION 22 40 00 - PLUMBING FIXTURES

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor shall furnish and install all materials, accessories, tools, equipment,transportation, labor, services and all operations required to complete the following:

1. Plumbing fixtures and specialties.


A. Standards: Any procedure, material or operation specified by reference to applicablestandards or codes shall comply with the current or most recent edition. In conflictsbetween listed standards, the more stringent shall govern.1. Applicable Standards:

a. International Plumbing Code, latest editionb. Local plumbing codec. International Fuel Gas Code, latest editiond. International Mechanical Code, latest edition

B. Contractor shall obtain all necessary permits and arrange for all inspections required byState or Local authorities.

1.3 SUBMITTALS

A. Product Information:

1. Plumbing fixtures and specialties

1.4 GUARANTEE

A Each entire overall installation, including every special item, device, and part and everyspecialized system shall be fully guaranteed from standpoint of satisfactory performance,safety, workmanship and material for one year after formal written acceptance byArchitect/Engineer (A/E), any unsuitable, unsatisfactory, noisy, ineffective, defective,improperly sized or applied equipment or material, or unacceptable workmanship shall bequickly replaced or modified during guarantee period or any extension thereof, asdirected and as approved by A/E in writing.

B. Individual items and systems shall be guaranteed for same period in addition to theabove regardless of any limitations of manufacturer's guarantee period.

C. Vapor Barrier covering guarantee - covering on pipe, fittings, devices, unions, etc. mustbe unconditionally guaranteed to be free of condensation, water logging, water staining,water drip, water accumulation and mildew for one (1) full year after mechanicalinstallation is accepted by A/E. Any such defective work must be completely replacedand refinished when condition is reported to contractor within above guarantee period byA/E without delay or cost to Owner, and guaranteed in same manner for another one (1)full year period.



2.0 PRODUCTS

2.1 FLASHING

A. Openings in roofs shall be flashed as necessary to be compatible with roofing systemusing approved methods. Disturbed existing piping through roof shall be properly flashedand weather-tight.

2.2 PLUMBING FIXTURES

A. All plumbing fixtures and non-metal accessories shall be white in color, except whereshown or specified otherwise.

B. Fixture trim shall be cast brass with polished chrome-plated finish on exposed surfaces,except where shown or specified otherwise.

C. Provide a separate trap with cleanout for each fixture. Fixture traps shall be tubular walltype, minimum 17 gauge with integral cleanout plugs, polished chrome plated finish,except where shown or specified otherwise. Size trap to fit fixture tailpiece. Comply withlocal plumbing code.

D. Provide an accessible loose key or screwdriver stop in all water supplies to all fixtures.

E. Provide a chrome plated brass escutcheon plate fastened in place for all wallpenetrations for exposed connections to fixtures.

F. Each wall hung fixture shall have a suitable wall hanger, bolted to wall and/or fixture;exposed portions of hangers shall match fixture as to finish.

G. Fixtures shall have water, drain, waste, soil, vent and other connections and accessoriesas required.

H. Each water connection to fixtures shall have an air gap or vacuum breaker as required bylocal or state departments of health. Water connection sizes are minimums and must beincreased to correspond to manufacturer's standards.

I. Each water connection to fixtures: provide pipe air chamber, as close to fixture aspossible, extending vertically up, with capped top, as follows:

Fixtures - Full size x 12" (min.)Mains - Full size x 24" (min.)

J. Provide additional air chambers, as may be required to assure quiet operation withoutincrease in contract price.

K. Verify fixture locations and coordinate them with architectural designs and other devicesand equipment, as approved by the A/E, before roughing in connections.

L. Install all handicapped fixtures to respective ADA Standards requirements.

M. Refer to drawings for schedule of fixtures.

N. Acceptable Manufacturer’s

1. Fixtures: American Standard, Kohler, Toto2. Carrier: Wade, Zurn, J.R. Smith



3. Flush Valve: Sloan, Zurn, Toto4. Supplies, Strainer & Traps: McGuire, Dearborn, Brass Craft, Engineered Brass,

American Standard, Kohler5. Faucets: Chicago, Elkay, Kohler, Zurn, Sloan6. Sinks: Elkay, Kohler, Just

3.0 EXECUTION

3.1 PREPARATION

A. Quantities Required and Clarifications:

1. Contractor shall determine quantities required from drawings and job conditions,except that where specifications call for specific quantities, these quantities shallalso govern. If there is conflict between quantities called for on drawings and inspecifications, greater quantity shall govern.

2. Where an item is specified by a manufacturer's number, such number is forgeneral information only, and shall be modified by any additional data, size, etc.,which may be shown and/or specified. Where there is conflict between numberand other data, it shall be contractor's responsibility to request clarification fromA/E.

3. Where clarification is required for any purpose, including discrepancies withinwritten specifications on drawings, or between them, it shall be contractor'sresponsibility to request such clarification from A/E at least 7 days before bidsare due and in all cases subsequent interpretations or clarifications made by A/Eshall be final.

B. Cleaning

1. Piping, conduit, equipment, devices, etc. shall be thoroughly cleaned beforebeing offered for acceptance.

2. The following shall be thoroughly cleaned, or finished out, or blown out beforeinstallation is offered for acceptance.a. Plumbing equipment, fixtures, devices, etc.

3. Labels, stickers, temporary protection, etc. shall be removed and work shall beprovided by contractor without increase in contract price.

C. Permits, Fees, Enlargements, Extensions, Etc.

1. Contractor shall secure and pay for all licenses, assessments, permits; shall payfor inspections required by county, state and local utilities; and shall replace newor present paving, etc. as approved by A/E and all governmental bodies havingjurisdiction. All without increase in contract price.

D. Verification of Points of Connection

1. Before submitting his bid, contractor shall visit site to verify all exposed,concealed and buried points of connection as to location, flow, size, type, depth,pressure, elevation, operating characteristics, etc., including but not limited to the



following:a. Water service and shut-offs.b. Sanitary sewer connectionsc. Storm sewer location

2. If contractor finds that any present point or points of connection to existingfacilities are incorrectly shown on plans or incorrectly specified, he shall notifyA/E in writing at least 7 days before bids are due to be submitted. A/E will issuean addendum to all contractors, calling their attention to revised point or points ofconnection.

3. If contractor fails to notify A/E in writing as outlined above, it will be assumed thathis bid includes everything required to provide proper connections to all presentpoints of connection as they actually exist and will pay for all relocations,replacements, additional runs and extensions, without increase in contract price.

3.2 PIPING INSTALLATION

A. Piping shall be securely hung and anchored, free to expand and contract quietly, withoutimposing strains on structure, piping, valves, devices, equipment. Piping shall be runparallel or perpendicular to building lines.

B. Connections between dissimilar metals shall be separated by dielectric couplings.

C. Valves, devices, equipment, etc. must be1. Accessible for operating, servicing and replacing2. Have interior assemblies removable without removing bodies3. Be free of all strain or stress.

D. Water piping shall vent through fixtures, or equipment above or shall have accessiblevents at all high points. Vent shall be manual air vents. Also, such piping shall draincompletely through fixtures, or shall have accessible drains at:1. All low points, ¾" or larger2. Brass caps or plugs elsewhere.

E. All piping installed through fire-rated construction shall be fire caulked.

F. Soil and Waste Piping

1. Install new soil and waste lines as indicated and connect to sanitary system asrequired.

2. Provide cleanouts throughout the plumbing system where indicated or requiredby code and the nature of the work.

3. Make changes in line or grade with the proper fitting.

4. All vent pipe shall be firmly and uniformly supported throughout its total lengthusing hangers as specified.

G. Vent Piping

1. Minimum venting shall be as shown on the drawings; otherwise, all venting shallcomply with the rules of the specified codes.



2. Vent all parts of the soil and waste system to prevent siphonage of traps ofplumbing fixtures.

3. Vent pipe sizes may be increased at contractor's option

3.3 EXCAVATION AND BACKFILLING

A. Depth of bury of cover over exterior underground piping shall not be less than 4’-0”unless otherwise noted.

B. Contractor shall do excavating required to install his work, including pockets as requiredfor fittings, etc., and after same are in place and tested and approved, he shall replacedrives, curbs and remove surplus earth and debris from the premises as directed by A/E.

C. Backfill under concrete and within 5'-0" of same shall be thoroughly compacted sand orsmall size gravel. All other backfill shall be free of debris, rock, concrete, etc. and settledwith water in layers as directed by A/E. No materials except clean sand shall be placedwithin 6" of any pipe.

D. Excessive excavations, excavations required to reach undisturbed soil, lower trenches,etc., shall be filled with thoroughly water compacted sand or small size gravel to provideadequate bedding and support.

E. Pipe shall be firmly and uniformly bedded throughout its total length on 3" minimumcompacted sand or gravel.

F. Backfill shall be 6" minimum compacted sand or gravel on sides and top.

G. No trenches shall be filled until work had been inspected and approved by A/E.


DESIGN MECHANICAL INC BASIC MECHANICAL REQUIREMENTS8/2021 220500 - 1

SECTION 23 05 00 - BASIC MECHANICAL REQUIREMENTS

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor provide:

1. Basic mechanical materials and methods as shown on the Drawings and specifiedherein for a complete and proper installation.

1.2 SUBMITTALS

A. Product/Catalog Data1. Submit Manufacturer's catalog data for each manufactured item.

a. Provide section in submittal for each type of item of equipment. IncludeManufacturer's catalog data of each manufactured item and enoughinformation to show compliance with Contract Document requirements.Literature shall show capacities and size of equipment used and bemarked indicating each specific item with applicable data underlined.

b. Include name, address, and phone number of each supplier.

B. Shop Drawings1. Provide schematic control diagrams for each separate fan system, heating system,

control panel, etc. Each diagram shall show locations of all control and operationalcomponents and devices. Mark correct operating settings for each control deviceon these diagrams.

2. Provide diagram for electrical control system showing wiring of related electricalcontrol items such as fuses, interlocks, electrical switches, and relays. Providedrawings showing electrical power requirements and connection locations.

3. Provide other shop drawings required by Division 15 trade Sections.

C. Operations and Maintenance Manuals1. Provide three (3) sets of manufacturers printed information in three (3) ring binders

containing information on installation, operation, and maintenance for each piece ofequipment supplied.

2. The information shall list any maintenance requirements and time durationbetween required maintenance.

3. The information shall show all parts and part numbers of available replacementparts for each piece of equipment.

4. A cross-index of material and equipment shall be furnished containing:a. An alphabetical listing of material and equipment including manufacturer’s

name, address and contact person of the local sales representative.b. An alphabetical listing of all subcontractors including name, address,

contact person, and specific work performed.


A. Requirements of Regulatory Agencies

1. Perform work in accordance with applicable provisions of local Plumbing Code,Gas Ordinances, and adoptions thereof. Provide materials and labor necessary tocomply with rules, regulations, and ordinances.



2. In case of differences between building codes, state laws, local ordinances, utilitycompany regulations, and Contract Documents, the most stringent shall govern.Promptly notify A/E in writing of such differences.

B. Identification - Motor and equipment name plates as well as applicable UL and AGA labelsshall be in place when Project is turned over to Owner.

1.4 COORDINATION

A. Coordinate clearances about all mechanical equipment with existing conditions, buildingstructure and other trades to ensure all manufacturers required clearances are met.Reroute and/or relocate all ductwork, piping, conduit, etc. as necessary to accommodateequipment clearances. It shall be the Contractor’s responsibility to ensure that allmanufacturers’ required clearances are met.

1.5 WARRANTIES

A. In addition to guarantee specified in General Conditions, guarantee heating, cooling, andplumbing systems to be free from noise in operation that may develop from failure toconstruct system in accordance with Contract Documents.

B. Provide certificates of warranty for each piece of equipment made out in favor of Owner.Clearly record "start-up" date of each piece of equipment on certificate. Include certificatesas part of Operation & Maintenance Manual.

1.5 SYSTEM START-UP

A. Provide manufacturer’s representative to start-up all mechanical equipment and systemsand provide start-up report for all mechanical equipment. Start-up report(s) shall beincluded in the O&M manual.

B. Off-Season Start-up1. If Substantial Completion inspection occurs during heating season, schedule spring

start-up of cooling systems. If inspection occurs during cooling season, scheduleautumn start-up for heating systems.

2. Notify Owner 7 days minimum before scheduled start-up.3. Time shall be allowed to completely service, test, check, and off-season start

systems.4. At end of off-season start-up, furnish Owner with letter confirming that above work

has been satisfactorily completed.

1.6 OWNER'S INSTRUCTIONS/TRAINING

A. Contractor shall train Owner's representatives in operation and maintenance of allmechanical equipment and systems.

B. Provide system training to include (but not limited to) such items as the following: modification ofdata displays and time schedules, alarm and status descriptions, thermostat programming andmaintenance schedules. Provide this training to a minimum of three (3) persons.

C. Provide training above in 2-different 2-hour sessions, each on a different day as part of thecontract.



D. Training sessions shall be individualized in nature and specific for this project. Generalized “group”sessions involving multiple building operators from non related facilities will be specificallyprohibited.

2.0 PRODUCTS

2.1 NON-FUSED DISCONNECT SWITCHES

A. Unless otherwise specified, provide non-fused disconnect switches for all mechanicalequipment supplied under Division 23. Coordinate size with equipment manufacturer.

B. Disconnect switches shall be listed by a Nationally Recognized Testing Laboratory andconstructed and tested in accordance with NEMA standards.

C. Acceptable Manufacturer’s1. SquareD2. Siemens3. Cutler-Hammer

3.0 EXECUTION

3.1 GENERAL

A. Site Inspection1. Examine premises to understand conditions which may affect performance of work

of this Division before submitting proposals for this work.2. No subsequent allowance for time or money will be considered for any

consequence related to failure to examine site conditions.

B. Drawings1. Plumbing, and Mechanical Drawings show general arrangement of piping,

ductwork, equipment, etc. Follow as closely as actual building construction andwork of other trades will permit.

2. Consider Architectural and Structural Drawings part of this work insofar as thesedrawings furnish information relating to design and construction of building. Thesedrawings take precedence over Plumbing, and Mechanical Drawings.

3. Because of small scale of Drawings, it is not possible to indicate all offsets, fittings,and accessories which may be required. Investigate structural and finishconditions affecting this work and arrange work accordingly, providing such fittings,valves, and accessories required to meet conditions.

C. Ensure that items to be furnished fit space available. Make necessary field measurementsto ascertain space requirements including those for connections and furnish and installequipment of size and shape so final installation shall suit true intent and meaning ofContract Documents. If approval is received by Addendum or Change Order to use otherthan originally specified items, be responsible for specified capacities and for ensuring thatitems to be furnished will fit space available.

3.2 INSTALLATION

A. Interface with other Work1. Electrical - Furnish exact location of electrical connections and complete



information on motor controls to installer of electrical system.2. Testing & Balancing

a. Put mechanical systems into full operation and continue their operationduring each working day of testing and balancing.

b. Make changes in pulleys, belts, fan speeds, and dampers or add dampersas required for correct balance at no additional cost to Owner.

B. Cut carefully to minimize necessity for repairs to previously installed or existing work. Donot cut beams, columns, or trusses.

C. Arrange pipes, ducts, and equipment to permit ready access to valves, unions, traps,starters, motors, control components, and to clear openings of doors and access panels.

3.3 PENETRATIONS

A. Seal all penetrations thru fire-rated construction (i.e. walls, floors, ceilings, etc.). Installfirestopping material to seal penetrations through fire rated structures and draft stops.

B. Seal openings through building exterior caused by penetrations of elements of mechanicalsystems.

3.4 REPAIR/RESTORATION

A. Patch and repair walls, floors, ceilings, and roofs with materials of same quality andappearance as adjacent surfaces unless otherwise shown. Surface finishes shall exactlymatch existing finishes of same materials.

B. Each Section of this Division shall bear expense of cutting, patching, repairing, andreplacing of work of other Sections required because of its fault, error, tardiness, orbecause of damage done by it.

C. Cutting, patching, repairing, and replacing pavements, sidewalks, roads, and curbs topermit installation of work of this Division is responsibility of Section installing work.

3.5 ADJUSTMENT

A. Properly lubricate equipment before Owner's acceptance.

B. Repair damaged finishes and leave everything in working order.

3.6 CLEANING

A. Clean exposed piping, ductwork, equipment, and fixtures.

3.7 PROTECTION

A. Do not operate equipment used for moving supply air without proper air filters installed.


DESIGN MECHANICAL INC HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT8/2021 220529 - 1

SECTION 23 05 29 - HANGERS AND SUPPORTS FOR HVAC PIPING AND EQUIPMENT

1.0 GENERAL

1.1 DESCRIPTION

A. Contractor:

1. Provide pipe hangers, supports, concrete inserts and anchor bolts including allmetallic hanging and supporting devices for supporting exposed piping andequipment.

1.2 REFERENCES

A. American National Standards Institute, ANSI:

1. ANSI B31.1: Power Piping.

B. Manufacturers Standardization Society of the Valve and Fittings Industry, MSS, 1815North Fort Myer Drive, Arlington, VA 22209.

1. MSS SP-58: Pipe Hangers and Supports - Materials, design and Manufacturer.2. MSS SP-69: Pipe Hangers and Supports - Selection and Application.

C. Underwriter's Laboratories/Factory Mutual, UL/FM:

1. Provide products UL listed and FM approved.

2.0 PRODUCTS

2.1 GENERAL

A. All materials used in manufacturing hangers and supports shall be capable of meetingthe respective ASTM Standard Specifications with regard to tests and physical andchemical properties, and shall be in accordance with MSS SP-58.

B. Select matching components sized to exactly fit pipe size for bare piping or to exactly fitaround pipe insulation with saddle and shield for insulated piping.

C. Use only one type by one manufacturer for each piping service.

D. Hanger material shall be compatible with the pipe material. Provide copper platedcomponents for copper piping systems.

E. All hangers and supports shall have some form of adjustment available after installation.

F. Acceptable Manufacturers:

1. B-Line Systems, Inc.2. ITT Grinnell Corp.3. PHD Mfg.4. Approved equal




A. Suspended single pipes shall be supported by hangers suspended by steel rods fromconcrete inserts, beam clamps, or ceiling mounting bolts as follows:

PipeSize Item Application

MSSType

GrinnellType

B-LineType

All AdjustableClevis Hanger

Steel pipe, not subject toexpansion or contraction

1 260 B3100

All Roller Hanger Steel pipe, subject to ½” ormore longitudinal thermalexpansion

4341

601603

B3110B3114

All AdjustableRing

Copper Tube 10 CT-99 B3170CT

All All ThreadedRod

Hanger Rods 253 B3205

All Beam Clamps C-Clamp with locknuts 23 95 or86

B351L orB3036L

All Riser Clamp Steel – support vertical pipingruns

8 261 B3373

All Riser Clamp Copper–support vertical pipingruns

8 CT-121 B3373CT

All Pipe Clamps To provide flexibility in hangerassembly due to horizontalmovement

4433

212216295

295H

B3140B3142B3144B3146

2.3 TRAPEZE HANGERS

A. Strut channel trapeze hangers shall be used to support parallel piping runs. Pipe racks orstanchions fabricated with strut channel shall be used in areas of multiple pipe runs. Strutclamps, straps, and rollers shall be used to maintain proper alignment.

1. Strut shall be B-Line B22 or heavier as required or equal.2. Clamps and straps shall be B-Line B2000 series, B2400 series or equal.3. Rollers shall be B-Line B218, B219, B379, B479, B3126 or equal.

2.4 STANCHIONS

A. Floor mounted pipes 3” and larger in diameter shall be supported by either cast-in-placeconcrete supports or adjustable pipe saddle supports. In general, concrete supports shallbe used when lateral displacement of the pipe is probable (unless lateral support isprovided), and adjustable pipe saddle supports shall be used where lateral displacementof the pipe is not probable.

1. Each adjustable pipe saddle support shall be screwed or welded to thecorresponding size base stand. Supporting pipe shall be schedule 40 steel pipeconstruction. Each base stand shall be secured to the concrete floor byexpansion bolts.

2. Adjustable saddle supports shall be B-Line B3093 with B3088T or B3090 withB3088 or equal.

2.5 WELDED STEEL ANGLE BRACKETS



A. Wall or column supported pipes shall be supported by welded steel brackets equal to B-Line B3063 (light duty), B3066 (medium duty) and B3067 (heavy duty) or equal asrequired for pipe sizes up to and including 20: diameter.

2.6 SADDLES AND SHIELDS

A. Provide properly sized saddles or shields under piping hangers and supports, factory-fabricated, for all insulated piping.

B. Types:

1. Protection Saddles: MSS Type 39; fill interior voids with segments of insulationmatching adjoining insulation. Saddles shall be B-Line B3160 thru B3165 orequal.

2. Protection Shields: MSS Type 40 with loc tab; length recommended bymanufacturer to prevent crushing insulation. Shields shall be B-LineB3153/B3155 or approved equal.

3. Thermal Hanger Shields:

a. Constructed of 360' insert of high density, l00 psi, waterproofed calciumsilicate, encased in 360' sheet metal shield.

b. Provide assembly of same thickness as adjoining insulation.c. Shields shall be B-Line B3380 thru B3384 or equal.

2.7 CONCRETE INSERTS

A. Concrete inserts for pipe hangers shall be, continuous metal or spot inserts designed tobe used in ceilings, walls or floors.

1. Continuous concrete inserts shall be used where applicable and shall be used forhanger rod sizes up to ¾” diameter. Inserts to be used where supports areparallel to the main slab reinforcement shall be B-Line B22I, B32I, B52I or equal.

2. Spot concrete inserts shall be used where applicable and shall be used forhanger sizes up to and including 7/8” diameter. Inserts shall be B-Line B2505thru B2508, B2500, B2501, B3014 or equal.

2.8 SLEEVES

A. Pipes through Floors Where No Plumbing Fixtures are Installed: 18 gauge galvanizedsteel.

B. Pipes through beams, Walls, Fireproofing, Footings, and Potentially Wet Floors:Schedule 40 steel pipe or 18 gauge galvanized steel.

C. UL Labeled Sleeves: Prefabricated with insulation and fireproofing.

D. Round Ducts: Galvanized steel.

E. Rectangular Ducts: Galvanized steel.

F. Sleeves Through Fire and Smoke Walls: Provide fire caulking in accordance with NFPA90A to preserve the same fire rating as the partition being penetrated.



G. Size sleeves to allow for expansion movement and to provide for continuous insulation.

H. Contractor Provide: Prefabricated Wall Penetration Seals: Modular mechanical type;interlocking synthetic rubber links filling annuler space between pipe and wall opening.

1. Manufacturer:a. Thunderline Corp.: Link-Sealb. Mason Industries: SPS

2. Bolt and pressure plate fasteners and rubber seal provide watertight sealbetween pipe and wall.

3. Seal provides electrical insulation between pipe and wall.

2.9 VIBRATION DAMPENING TUBING CLAMPS (STRUT MOUNTED)

A. For refrigeration, air conditioning, hydraulic, pneumatic and domestic water applicationsuse a vibration-dampening clamp in strut-mounted applications. For copper and steeltubing sizes use B-Line BVT series clamps (Vibra-Clamp) or equal or B-Line series Vibra-Cushion with B2000 series clamps or equal.

2.10. PIPE ALIGNMENT GUIDES

A. Provide factory-fabricated cast semi-steel or heavy fabricated steel; including bolted 2-section outer cylinder and base with 2-section guiding spider bolted tight to pipe.

1. Size guide and spiders to clear pipe, insulation, and cylinder.2. Guide Length: Recommended by manufacturer to allow indicated travel.3. Pipe alignment guides shall be B-Line B3281 thru B3287 or equal

2.11 MISCELLANEOUS SUPPORT MATERIALS

A. Metal Framing: NEMA Standard ML 1.

B. Steel Plates, Shapes and Bars: ANSI/ASTM A36.

3.0 EXECUTION

3.1 GENERAL

A. Comply with MSS SP-69 for installation of hangers, supports, anchors, inserts, et..

B. Install in accordance with manufacturer's recommendations and local Building Codes.

C. All pipe and tubing shall be supported as required to prevent significant stresses in thepipe or tubing material, valves, and fittings and to support and secure the pipe in theintended position and alignment.

D. All supports shall be designed to adequately secure the pipe against excessivedislocation due to thermal expansion and contraction, internal flow forces, and allprobable external forces such as equipment, pipe and personnel contact.




A. Install hangers, supports clamps, and attachments directly from building structurecomplete with inserts, bolts rods, nuts and washers, and accessories.

1. Do not use wire or perforated metal to support piping; pipe support from otherpiping not permitted.

2. Install hangers with minimum 1/2 inch clear space between finished covering andadjacent work.

3. Place hanger within 1 foot of each horizontal elbow.4. Use hangers vertically adjustable 1-1/2 inch minimum after piping is erected.

B. Horizontal Soil, Waste, and Storm Pipe Support: Near each hub, with 5 feet maximumspacing between hangers for cast iron pipe.

C. Fire Water Pipe Support: Independent of other piping.

D. Riser Pipe Support: Independent of connected horizontal piping where practical.

E. Prime Coat Finish

1. Prime coat all exposed steel hangers and supports before installation.2. Hangers and supports in crawl spaces, pipe shafts, and suspended ceiling

spaces are not considered exposed, and need be primed, only.

F. Vertical Piping:

1. Support vertical piping at every other floor.

G. Pipe Movement:

1. Install hangers and supports to allow controlled movement of piping systems; topermit freedom of movement between pipe anchors; and to facilitate action ofexpansion joints, expansion loops, expansion bends and similar units.

2. Load Distribution: Install hangers and supports so piping live and dead loadingand stresses from movement is not transmitted to connected equipment.

3. Pipe slopes:a. Install hangers and supports to provide indicated pipe slopes.b. Do not exceed maximum pipe deflections allowed by ANSI B31.

H. Pipe Guides: Install pipe guides near expansion loop, expansion joints and ball joints,unless indicated otherwise.

I. Electrolysis: Prevent electrolysis in copper tubing support with copper-plated hanger andsupports or other recognized industry methods.

J. Steel Joists: Connect all hangers and attachments to bottom chord of all steel joists orbeams.

K. Insulated Piping:

1. Clamps:

a. Attach clamps, including spacers, to piping with clamps projectingthrough insulation.

b. Do not exceed ANSI B31 pipe stresses.



2. Shields:

a. Where low-compressive-strength insulations vapor barriers are specifiedon cold or chilled water piping, install coated protective shields.

b. For pipe 8 inches and over, install wood insulation saddles.

3. Saddles: Where insulation without vapor barrier is indicated, install protectionsaddles.

3.3 PIPE HANGER AND SUPPORT SPACING

A. Space hangers and supports in accordance with MSS SP-69, local Building Codes andthe following schedule, whichever is more stringent:

Pipe Size RodDiameter

Max. HangerSpacing

Steel Pipe1 ¼” and smaller 3/8” 8’ oc1 ½” & 2” 3/8” 10’ oc2 ½” and 3” 1/2” 10’ oc4” & 5” 5/8” 10’ oc6” 3/4” 10’ oc8” to 12” 7/8” 10’ oc

Copper Tube1” & smaller 3/8” 8’ oc1 ¼” and 2” 3/8” 10’ oc2 ½” and 3” 1/2” 10’ oc4” & 5” 5/8” 10’ oc6” 3/4” 10’ oc8” to 12” 7/8” 10’ oc

Plastic Pipe1” & smaller 3/8” 4’ oc1 ¼” - 2” 3/8” 4’ oc3” 1/2” 4’ oc4” 5/8” 4’ oc6” and larger 3/4” 4’ oc

B. Install additional hangers and supports when supporting additional concentrated loads;including valves, flanges, guides, strainers, expansion joints and at changes in pipingdirection.

3.4. ANCHORS

A. Install anchors at locations preventing stresses from exceeding ANSI B31; andpreventing transfer of loading and stresses to connected equipment.

1. Install anchors at ends of principal pipe-runs and at intermediate points in pipe-runs between expansion loops and bends.

2. Preset anchors to accommodate both expansion and contraction of piping.

B. Fabricate and install anchor by welding steel shapes, plates and bars to piping andstructure in compliance with ANSI B31 and AWS.



C. Anchors for Expansion Compensators: Install anchors in accordance with expansion unitmanufacturer's recommendations.

a. Limit movement of piping and forces to maximums recommended bymanufacturer for each unit.

3.5 ADJUSTING AND CLEANING

A. Adjust hangers and supports and place grout under supports to bring piping to properlevels and elevations.


DESIGN MECHANICAL INC TESTING, ADJUSTING AND BALANCING FOR HVAC8/2021 230593 - 1

SECTION 23 05 93 - TESTING, ADJUSTING AND BALANCING FOR HVAC

1.0 GENERAL

1.1 WORK INCLUDES

A. Contractor:

1. Test, balance and adjust the following mechanical systems:

a. Air distribution system: adjust flows to meet specifications at all supply,return, and exhaust diffusers.

b. Air moving equipment: fans, blowers, hoods, etc.c. Instrumentation and control system

1.2 QUALITY CONTROL

A. All test results shall be documented per the previously approved procedure andtransmitted to the A/E for review as a requisite for final acceptance and payment. Finalinspection shall follow completion and acceptance of the test results.

B. Testing, adjusting, and balancing shall be performed when the system is operating at ornear design conditions.

1.3 SUBMITTALS

A. Report:

1. Submit a final report containing all information regarding the proper completion ofthe project. Submittal shall include, but not be limited to, original flows, finalflows, calculations, procedures, results, etc.

2. Identify in the reports each item not complying with the Contract requirements, orobvious maloperation or design deficiencies of the equipment or controls.

3.0 EXECUTION

3.1 AIR SYSTEMS: Test, adjust and balance systems in accordance with the following:

A. Preliminary:

1. Identify and list size, type and manufacturer of all equipment to be tested,including air terminals, rooftop units, and exhaust fans. Inspect all systemcomponents for proper installation and operation.

2. Use manufacturers’ ratings for all equipment to make calculations except wherefield test shows ratings to be impractical.

3. Verify that all instruments are accurately calibrated and maintained.

B. Distribution:

1. Adjust zones or branch ducts to proper design CFM.



C. Air Terminals:

1. Identify each air terminal from reports as to location and determine required flow.

2. Adjust equalizing devices to provide uniform velocity across the inlets ofterminals prior to measuring flows.

3. Make final measurement of air quantity after the air terminal has been adjusted toprovide optimal air patterns of diffusion.

4. Test and adjust each air terminal to within 10% of design requirement.

5. Test procedure on air terminals shall include comparison of specified FPMvelocity and observed velocity, adjustment of terminal, and comparison ofspecified CFM and observed CFM after adjustment.

D. Fans:

1. Vary the total air system quantities by adjustment of fan speed.

2. Damper restriction of system’s total flow may be used only for systems withdirect-connected fans (without adjustable pitch blades), provided the systemspressure is less than ½” wg and sound level criteria is met.

E. Traverses:

1. Except as specifically indicated herein, make pitot tube traverses of each duct tomeasure the air flow.

F. Traverse Exceptions:

1. Pitot tube traverses may be omitted provided the duct serves a single room orspace and its design volume is less than 1000 CFM.

2. In lieu of the pitot tube traverse, determine the airflow in the duct by totaling thevolumes of the individual terminals served.

G. Duration:

1. Conduct operating tests of heating and cooling fans, coils, and other equipmentfor not less than four (4) hours after stabilized operating conditions have beenestablished.

2. Base standardized capacities on temperature and air quantities measured duringtesting.

H. Verification:

1. Prepare summation of readings of observed CFM along with the specified CFM,and verify that duct losses are within range.

3.2 HEATING AND COOLING SYSTEMS



A. General:

1. Adjust heating and cooling systems to provide required quantities to, or through,each component.

2. Measure and document quantities and pressures with calibrated meters.

3. Use venturi tubes, orifices, or other metering fittings and pressure gages tomeasure flow rates and balance system.

4. Adjust the systems to provide the approved pressure drops through the heattransfer equipment prior to capacity testing.

5. Where flow metering fittings are not installed, determine the flow balance bymeasuring temperature differential across the heat transfer equipment, and makeflow rate calculations based on temperature differential data.

6. Position automatic control valves to full flow through heat transfer equipmentprior to testing.

7. Verify design CFM at all units.

3.3 INSTRUMENTATION

A. Make calibration histories of instrumentation used during the procedure available forexamination.

B. Have each testing instrument calibrated by an approved laboratory or manufacturer priorto start of the project.

C. The engineer reserves the right to require instrument recalibration, or use of otherinstruments and test methodology, where accuracy of readings is questioned.


DESIGN MECHANICAL INC DUCT INSULATION8/2021 230713 - 1

SECTION 23 07 13 - DUCT INSULATION

1.0 GENERAL

1.1 WORK INCLUDES


1. Fibrous glass insulation wrap on all supply, return, and fresh air duct systems andrelated fittings located in unconditioned spaces or plenums unless noted otherwiseon the Drawings.


A. National Fire Protection Association (NFPA)

1. Fire ratings shall be in accordance with NFPA 90A.

B. American Society for Testing and Materials, ASTM

1. Flame spread of 25 or less, ASTM E84.2. Smoke developed rating of 50 or less, ASTM E84.

1.3 SUBMITTALS

A. Submit product information on all insulating materials and accessories.

2.0 PRODUCTS

2.1 FIBROUS GLASS INSULATION WRAP

A. Material: Fiberglass with an all service factory applied foil/kraft (FRK/FSK) vapor barrierfacing.

B. Minimum Density: 0.75 lb/cu. ft.

C. Insulation shall be suitable for use with commercial heating, air conditioning and dual-temperature ducts operating at temperatures from 40F to 250F.

D. Acceptable Manufacturers

1. Owens Corning SOFTR Duct Wrap2. Knauf3. Johns Manville

2.2 EXTERIOR DUCT INSULATION

A. Insulation: 2” fiberglass duct board. Duct board shall be 6.0 lb/ft3 with a factory appliedfoil-scrim-kraft (FSK) facing.

B. Jacket: (1) Exterior duct board shall be weatherproofed with 0.016-inch thick aluminumjacketing with an integrally bonded moisture barrier over the surface in contact with theinsulation or (2) Exterior duct board shall be weatherproofed with Alumaguard 60 byPolyguard Products (1-800-541-4994).



2.2 ACCESSORIES

A. Provide staples, bands or wire as recommended by insulation manufacturer for applicationindicated.

B. Provide cements, adhesives, coatings, sealers and similar compounds as recommended byinsulation manufacturer for the application indicated (No asbestos containing materials areallowed).

3.0 EXECUTION

3.1 GENERAL

A. Contractor shall install insulation in accordance with Manufacturer's recommendations.

B. Insulation shall be continuous through walls and floors except where it must be broken tomaintain the fire rating of the wall or floor.

3.2 DUCT INSULATION

A. Sheet metal ducts shall be clean, dry and tightly sealed at all joints and seems beforeapplying fiberglass duct wrap insulation.

B. Cover all external portions of the duct with duct wrap insulation. Round spiral ducts shall bethe double wall/insulated type.

C. Cut duct wrap to the proper "stretch-out" diameter as specified in the manufacturer'sinstructions to ensure thermal performance.

D. Remove a two (2) inch piece of insulation from the facing at the end piece of insulation toform an overlapping stapling and taping flap.

E. Install duct wrap insulation with facing outside so that the tape flap overlaps the insulationand facing at the other end of the piece of duct wrap. Adjacent sections of duct wrapinsulation shall be tightly butted with the two (2) inch stapling and taping flap overlapping.

F. If ducts are rectangular or square, install so insulation is not excessively compressed atcorners.

G. Seems shall be stapled approximately six (6) inches on center with 1/2-inch steel outwardclinching staples and sealed with pressure-sensitive tape matching the insulation facing,FRK backing stock or glass fabric and mastic.

H. Seal all tears, punctures and other penetrations of the duct wrap facing with tape or masticto provide a vapor-tight system.

I. Where rectangular ducts are 24 inches in width or greater, duct wrap shall be secured to thebottom of the duct with mechanical fasteners spaced 18" on center (maximum).



3.3 INSULATION SCHEDULE

Intended Service InstalledK-Value

MinimumThickness (in)

MinimumR-Value

Return Air Ducts in Plenum .27.25

2.22.0

6.06.0

Supply and Fresh Air Ducts in Plenum .27.25

2.22.0

6.06.0


DESIGN MECHANICAL INC LOW PRESSURE DUCTWORK8/2021 233113 - 1

SECTION 23 31 13 - LOW PRESSURE DUCTWORK

1.0 GENERAL

1.1 WORK INCLUDES


a. Ductwork, fittings, and accessories.b. Turning vanesc. Volume dampers.d. Fire and smoke dampers.


A. Design and Installation Standards:

1. NFPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems2. NFPA 90B Warm Air Heating and Air Conditioning Systems3. NFPA 96 – Standard for the Installation of Equipment for Removal of Smoke and

Grease-Laden Vapors from Commercial Cooking Equipment.4. Sheet Metal and Air Conditioning Contractors National Association (SMACNA)

HVAC Duct Construction Standard.5. ASHRAE Standards on duct construction.6. Underwriters' Laboratories standard UL 181 requirements for class 1 air duct

material

B. Fire and Smoke Rating Standards: ASTM-E84, NFPA 255 and UL 723.

C. Dimensions on Drawings indicate inside dimensions of air flow area. Outside ductdimensions must be increased for internally lined ducts to allow for liner thickness.

1.3 SUBMITTALS

A. Submit ductwork fabrication and installation drawings.

1.4 COORDINATION

A. Installation of ducts shall be coordinated with the building structure, lighting fixtures, piping,conduit, reflected ceiling plans and other trades as necessary.

2.0 PRODUCTS

2.1 SHEET METAL DUCTWORK

A. Material

1. All ducts unless specified otherwise shall be constructed from sheets or rolls of G60or better galvanized steel ASTM-A525.

2. Exhaust ducts in shower rooms or other wet areas shall be constructed from 3003-H14 series aluminum. Shower or wet area exhaust where tied to general exhaustshall be aluminum from the air device to the point indicated on the Drawings.



B. Construction

1. All ductwork unless specified otherwise shall be constructed of gauges andreinforcement in accordance with SMACNA HVAC Duct Construction Standard asfollows:

a. Rectangular duct: Table 1-5 (2” w.g. static pressure)b. Round Duct: Table 3-2 (2” w.g. static pressure)

2. Where local code requires gauges heavier than required by SMACNA then the localcode shall govern.

3. All ductwork shall be neatly constructed and stiffened on the outside surfaces wherenecessary to prevent vibration or buckling. Panels in all ducts 12” and larger shall becross-broken. All ducts, housings, etc. shall be fabricated as detailed on theDrawings and in the SMACNA HVAC Duct Construction Standard.

C. Longitudinal Joints

1. Unless specified otherwise, all rectangular duct longitudinal joints shall be“Pittsburgh Lock”.

2. Unless specified otherwise, all round and oval ducts 18-inches and larger shallhave spiral seams or continuously welded longitudinal seams. Snap Lock seamsmay be used for round ducts under 18-inches.

D. Transverse Joints

1. All transverse joints in rectangular ductwork 18-inches and larger shall be madeby a flanged duct connection system. Transverse joints in rectangular ductworksmaller than 18-inches shall be made in accordance with SMACNA suitable withthe pressure class.

2. All transverse joints in round and oval ductwork 18-inches and larger shall bemade by a round/oval flanged duct connection system. Transverse joints in roundand oval ductwork smaller than 18-inches shall be made by beaded sleeve joints.

3. The rectangular flanged duct connection system shall consist of roll-formedflanges, corner pieces, gaskets and cleats described as follows:a. Flanges attach to the duct wall and have integral mastic, which allows

the flange to seal itself to the duct.b. Corner pieces are used to add rigidity to the flange, hold the ductwork

together and provide a sealing surface for the gasket.c. The gasket serves as a seal between the flanges.d. The cleat insures even compression of the gasket along the length of the

flange.

4. Approved Manufacture’sa. Ductmate Industries, Inc. or approved equal.

E. Fittings

1. Fittings shall be in accordance with Section II of SMACNA HVAC DuctConstruction Standard.



2. Radius elbows without vanes: Radius Ratio (R/W) shall be 1.5 or greater

3. Radius elbows with vanes:a. R/W = 0.75 to 1.0: Provide 3 vanes in elbowb. R/W = 1.0 to 1.25: Provide 2 vanes in elbowc. R/W = 1.25 to 1.5: Provide 1 vane in elbowd. Dual Radius: Per Figure 2.5, SMACNA HVAC Duct Construction

Standards.

4. Where square elbows are indicated or required, provide with turning vanes.

5. Branch Connections:a. Round: conical or 45 degree conicalb. Rectangular: 45 degree entry type. Spin in fittings are not acceptable.

6. Provide necessary transition pieces and duct collars to make connections toductwork and from neck sizes shown on the Drawings.

2.2 FLEXIBLE DUCTWORK

A. Constructed with smooth inner liner supported on aluminum or steel helix, 1" thick fiberglassblanket insulation with maximum thermal conductivity of 0.23 BTU/HR-SQ FT-F at 75 F.mean temperature, and fiberglass reinforced metalized film vapor barrier outer jacket.

B. Flexible duct used in return air ceiling plenums must be clearly labeled "Class 1" every fourfeet.

C. Maximum length of flex duct for runouts shall be ten (10) feet unless otherwise noted on theDrawings. Flex ducts shall be routed to minimize total length and have no kinks or sharpbends. Flex ducts may not pass through smoke or fire rated walls, floors or ceilings.

D. Approved Manufacturersa. Thermaflex M-KEb. Acme Manufacturing Co.c. CertainTeed Corp.

2.3 EXTERIOR DUCTWORK

A. Double-wall insulated ductwork with galvanized steel outer shell, 1-inch fiberglassinsulation and galvanized steel perforated inner liner constructed in accordance withSMACNA HVAC Duct construction standard.

B. Ductwork shall have flanged connections.

C. Approved Manufacturer’sa. United McGill AirFlow Corp. Rectangular K-27 or equal.

2.7 DUCT HANGERS AND SUPPORTS

A. Duct systems shall be installed with support systems as indicated in Tables 4-1 to 4-3and Figures 4-1 to 4-8 of SMACNA HVAC Duct Construction Standard, Section IV andadditionally as required to maintain alignment.

B. Horizontal ducts shall have a support within two (2) feet of each elbow and within four (4)feet of each branch intersection.



2.8 DUCT SEALANT

A. Duct sealant shall be flexible, water based, adhesive sealant designed for use in 2” staticpressure systems. Sealant shall be U.L. Listed and conform to ASTM E84.

B. All supply ductwork unless specified otherwise shall be SMACNA’s seal class A.

C. All return, exhaust and supply ductwork downstream of terminal units shall be SMACNA’sseal class B.

D. Approved Manufacturer’sa. Ductmate PROsealb. United McGill AirFlow Corp. Uni-Masticc. Duro-Dyne DSW

2.9 TURNING VANES

A. Double vane, runner Type 2, 2-inch vane radius, 2 1/8-inch vane spacing and minimum 26GA. where indicated on the drawings or specified herein.

a. For widths over 60-inches, install vanes in 2 or more sections or use tie rods to limitthe unbraced vane length.

B. Rectangular mitered elbows shall have double thickness turning vanes for elbows from 60degrees through 90 degrees.

C. Acceptable Manufacturersa. Titusb. Aero-Dynec. Airsan

2.10 ACCESS DOORS

A. Provide access doors at fire, smoke, or duct mounted damper locations and where indicatedon the Drawings.

B. Access doors shall permit easy visual inspection of fire and/or smoke dampers.

C. Provide door handles and gasket seals on all doors.

D. Acceptable Manufacturersa. United McGill AirFlow Corp.b. Air Balance Inc./American Warming & Ventilating Co.c. PCI Industries/Pottorffd. Ruskin

2.11 DAMPERS

A. Manual Volume Dampers (Round)

1. Provide manual volume dampers at all runouts and where indicated on thedrawings.

2. Factory built and assembled, butterfly type dampers with circular blade mounted toshaft and self-lubricating nylon or stainless steel sleeve. Minimum 14 GA galv. steel



frame, 16 GA galv. Steel blade and ½-inch diameter shaft.

3. Acceptable Manufacturersa. Greenheck Model MBDR-50 ROUND or approved equal.

B. Manual Volume Dampers (Rectangular)

1. Provide manual volume dampers at all runouts and where indicated on thedrawings.

2. Factory built and assembled damper with a single rectangular blade mounted to ashaft and self-lubricating nylon or stainless steel sleeve. Minimum 22 GA galv. steelframe, 20 GA galv. Steel blade and ½-inch diameter shaft.

3. Acceptable Manufacturersa. Greenheck Model MBD-10 or approved equal.

C. Backdraft Dampers

1. Aluminum, counterbalanced, gravity operated

2. Acceptable Manufacturersa. Ruskin Manufacturing Co.b. Air Balance, Incc. PCI Industries/Pottorff

D. Fire Dampers

1. UL Labled, 1 ½ hour rated (unless otherwise indicated), 165 degree F fusible link.

2. Provide where indicated and where required by NFPA.

3. Multiblade type for openings over 12 x 12 inches, single blade for openings 12 x 12or less. Blades shall be out of air stream.

4. Acceptable Manufacturersa. Ruskin Manufacturing Co. Model IBDb. Air Balance, Inc Model 119c. PCI Industries/Pottorff

E. Smoke Dampers

1. Dampers and actuators shall be UL listed and labeled as an assembly for use insmoke control systems under UL 555 and 555S

2. Provide smoke dampers where indicated on the Drawings in ductwork adjacent tosmoke partition (not in wall) with actuator in accessible location and visible forinspection.

3. Parallel or opposed blade type with blades hinged together for operation in unisonand bearings arranged for automatic operation.

4. Single thickness type minimum 16 GA steel, double thickness type minimum 18 GAsteel.



5. Actuator: factory installed two position type, 120V, spring return fail closed and ULlisted at 250 degrees F.

6. Acceptable Manufacturersa. Ruskin Manufacturing Co. Model SD36 (Class II) and SD37 (Class I)b. Air Balance, Inc Modelc. PCI Industries/Pottorff

F. Combination Fire-Smoke Dampers

1. May be used in lieu of separate fire and smoke dampers.

2. Dampers and actuators shall be UL listed and labeled as an assembly for use insmoke control systems under UL 555 and 555S

3. UL555 fire rating: 1 ½ hour (unless otherwise indicated).

4. Provide where indicated on the Drawings in ductwork adjacent to smoke partition(not in wall) with actuator in accessible location and visible for inspection.

5. Parallel or opposed blade type with blades hinged together for operation in unisonand bearings arranged for automatic operation.

6. Firestat (UL listed)

a. Lock damper in closed position at 212 deg F duct temperatureb. Provide override function to operate damper in a smoke control operation.c. Provide two (2) damper position indicator switches to provide remote

indicating damper blade position.d. Firestat and two (2) position indicator switches shall be capable of

interfacing with fire alarm system.

7. Acceptable Manufacturersa. Ruskin Manufacturing Co. Model FSD36 (Class II)b. Air Balance, Inc Modelc. PCI Industries/Pottorff

3.0 EXECUTION

3.1 INSTALLATION OF DUCTWORK

A. Ductwork shown on drawings shall be considered as diagrammatic and may not be shownin its actual location for clarity. The drawings are not intended to indicate all offsets ortransitions as required for actual installation. Ductwork sizes indicated are inside dimensions.Where dimensions are altered to avoid interferences, conflicts or clearance difficulties, therevised size shall provide the same air handling characteristics and be noted on the final As-Built drawings.

B. Install ductwork in accordance with SMACNA recommendations. Support directly fromstructure.

C. Coordinate duct locations with all affected Contractors before beginning installation.

D. Conceal ductwork in finished spaces unless indicated otherwise.



E. Install test holes in locations required for air balancing.

F. All joints and seems shall be sealed with tape or mastic.

3.2 INSTALLATION OF FIRE AND SMOKE DAMPERS

A. Install in accordance with Manufacturer’s instructions.

B. Seal smoke, fire and combination fire-smoke dampers at wall or floor opening and betweendamper and sleeve or duct around one side of damper’s downstream face.

3.3 INSPECTION

A. Inspect and test ductwork before insulation is applied. Repair or replace damaged ductmaterials. Seal visible holes. Do not rely on insulation to seal holes.


DESIGN MECHANICAL INC DIFFUSERS, REGISTERS AND GRILLES8/2021 233713 - 1

SECTION 23 37 13 - DIFFUSERS, REGISTERS AND GRILLES

1.0 GENERAL

1.1 WORK INCLUDES


1. Grilles & registers.2. Ceiling diffusers.


A. Comply with the following applicable Standards:

1. NFPA 90A Installation of Air Conditioning and Ventilating Systems2. NFPA 90B Warm Air Heating and Air Conditioning Systems3. NFPA 251 Standard Methods of Fire Tests of Building Construciton and

Materials.

1.3 SUBMITTALS

A. Submit product information for all air distribution devices.

2.0 PRODUCTS

2.1 GENERAL

A. Finishes: Furnish all air distribution devices with prime coated and white baked enamel finishcoat unless specified otherwise.

2.2 CEILING SUPPLY AIR DIFFUSER

A. Drywall/Hard Ceiling:

1. Ceiling diffuser shall be surface mount; square, 4-way throw plaque face with fixeddischarge unless noted otherwise. Finish shall be white to match ceiling. See Plansfor diffuser and neck sizes.

2. Acceptable Manufacturers

a. Titus Model OMNIb. Carnesc. Priced. Nailor

B. Lay-in Ceiling:

1. Ceiling diffuser shall be square, 4-way throw plaque face with fixed dischargeunless noted otherwise. Diffuser model shall be matched to the specific lay-inceiling type (standard, tegular, etc.). Finish shall be white to match ceiling. SeePlans for diffuser and neck sizes.


DESIGN MECHANICAL INC DIFFUSERS, REGISTERS AND GRILLES8/2021 233713 - 2

2. Acceptable Manufacturers

a. Titus Model OMNIb. Carnesc. Priced. Nailor

2.3 CEILING RETURN AIR REGISTER

A. Install perforated ceiling register at the locations shown on the drawings. Finish shall bewhite to match ceiling. Ceiling register shall have a Noise Criteria (NC) < 20 unlessotherwise noted.

B. Acceptable Manufacturers1. Titus PAR or equal

2..4 SPECIALITY GRILLES AND DIFFUSERS

A. As scheduled on the drawings.

B. Acceptable Manufacturers

1. Titus2. Carnes3. Price4. Nailor

3.0 EXECUTION

3.1 GENERAL

A. Coordinate installation of air distribution devices with the building structure, lighting fixtures,piping, conduit, reflected ceiling plans and other trades as necessary.

3.2 INSTALLATION

A. Suspend ceiling air devices from structure on wire hangers or from rigid ductwork. Finishedceiling must not be used to support air distribution devices.

B. Verify compatibility of air devices with specific ceiling types.

C. All ductwork visible through any return or exhaust air grilles shall be painted black.

3.3 INSPECTION

A. Inspect air devices for scratches and dents after installation. Repair dents and touch upscratches. If damage is still visible replace device.


DESIGN MECHANICAL INC BASIC ELECTRICAL REQUIREMENTS8/2021 260500 - 1

SECTION 26 05 00 - BASIC ELECTRICAL REQUIREMENTS

1.0 GENERAL

1.1 WORK INCLUDES

A. Electrical Contractor:

1. Provide all materials, labor, tools, transportation, incidentals, and appurtenances tocomplete all items of work shown on the Drawings and described herein.

1.2 SUBMITTALS

A. Product/Catalog Data1. Submit Manufacturer's catalog data for each manufactured item.

a. Provide section in submittal for each type of item of equipment. IncludeManufacturer's catalog data of each manufactured item and enoughinformation to show compliance with Contract Document requirements.Literature shall show capacities and size of equipment used and bemarked indicating each specific item with applicable data underlined.

b. Include name, address, and phone number of each supplier.

B. Operations and Maintenance Manuals1. Provide three (3) sets of manufacturers printed information in three (3) ring binders

containing information on installation, operation, and maintenance for each piece ofequipment supplied.a. The information shall list any maintenance requirements and time duration

between required maintenance.b. The information shall show all parts and part numbers of available

replacement parts for each piece of equipment.c. A cross-index of material and equipment shall be furnished containing:

1.) An alphabetical listing of material and equipment includingmanufacturer’s name, address and contact person of the localsales representative.

2). An alphabetical listing of all subcontractors including name,address, contact person, and specific work performed.


A. Complete installation shall conform with all applicable Federal and State Codes including,but not limited to the latest approved editions of the following:

1. State Building Codes.2. Code of Federal Regulations (CFR)3. National Electrical Code (NFPA-70)4. Life Safety Code, NFPA-101.5. Occupational Safety and Health Act (OSHA) of 1971 and all amendments thereto.6. Illinois Department of Public Health (IDPH)

B. Nothing contained in the drawings and specifications shall be construed to conflict with theselaws and codes and they are hereby included in these specifications.



1.4 COORDINATION

A. Coordinate clearances about all electrical equipment with existing conditions, buildingstructure and other trades to ensure all manufacturers required clearances are met.Reroute and/or relocate all conduit, etc. as necessary to accommodate equipmentclearances. It shall be the Contractor’s responsibility to ensure that all manufacturers’required clearances are met.

1.5 OWNER'S INSTRUCTIONS/TRAINING

A. Contractor shall train Owner's representatives in operation and maintenance of all electricalequipment and systems.

B. Provide this training to a minimum of three (3) persons.

C. Provide training above in 2-different 4-hour sessions, each on a different day as part ofthe contract.

D. Training sessions shall be individualized in nature and specific for this project.Generalized “group” sessions involving multiple building operators from non relatedfacilities will be specifically prohibited.

2.0 PRODUCTS

2.1 EQUIPMENT AND MATERIALS

A. All equipment and materials furnished and installed by Contractor shall be new. Theequipment to be furnished and installed shall be standard cataloged products ofmanufacturers regularly engaged in the production of electrical equipment and shall be ofthe latest design. Equipment of the same general type shall be of the same make throughoutthe project.

B. The Contractor shall be responsible for the physical fit and configuration of the equipment tosuit the space available and the intent of the Work. Due consideration shall be included forexternal connections and service maintenance access of the Project Documents.

C. The Contractor shall verify in the course of preparing the submittals that the respectivematerial and equipment comply with the criteria set forth in the Project Documents.

3.0 EXECUTION

3.1 GENERAL

A. Contractor must read the entire Specifications covering other branches of Work. Contractoris responsible for coordination of his work with work performed by other trades.

B. Consult all Contract Documents which may affect the location of any equipment orapparatus furnished under this Work and make minor adjustments in location as necessaryto secure coordination.

C. System layout is schematic and exact locations shall be determined by structural and otherconditions. This shall not be construed to mean that the design of the system may be



arbitrarily changed. The equipment layout is to fit into the building as constructed and tocoordinate with equipment included under other Divisions of Work.

D. Contractor shall contact the A/E immediately if he notices any discrepancies or omissions inthe Contract Documents, or if there are any questions regarding the meaning or intentthereof.

E. Submit all changes, other than minor adjustments to the A/E for approval before proceedingwith the work.

F. All workmanship to be of the highest quality in accordance with the best practices of thetrade by craftsmen skilled in this particular work.

3.2 DRAWINGS

A. Drawings are schematic and show approximate locations of electrical equipment. Exactlocation should be coordinated by the Contractor and verified in field prior to rough-in.

B. Significant deviations from drawings must be approved by the A/E.

C. A/E reserves the right to make minor changes in the location of outlets and equipment, up tothe time of rough-in, without additional cost.

3.3 PROTECTION AND CLEANING

A. Protect all fixtures against damage from leaks or abuse and pay the cost of repair orreplacement of fixtures or equipment made necessary by failure to provide suitablesafeguards or protection.

B. After all fixtures have been set, thoroughly clean all fixtures with manufacturersrecommended cleaning agents, removing stickers and other foreign matter and leave everypart in acceptable condition, clean and ready for use. Install all new lamps and check forsatisfactory operation.

C. Repair all dents and scratches in factory prime or finish coats on all electrical equipment. Ifdamage is excessive, replacement may be required.

3.4 CUTTING AND PATCHING

A. The Contractor shall be responsible for all required digging, cutting, etc., incident to his workand shall make all required repairs thereafter to the satisfaction of the A/E, but in no caseshall the Contractor cut into any major structural element, beam or column without thewritten approval the A/E. The Contractor or trade requiring the opening shall be responsiblefor verifying the existence of any concealed utilities or services within the surface and shallpay all costs of repairing or replacing any such surfaces or utilities which are damaged.

3.5 PENETRATIONS

A. Sleeves shall be installed in all walls and floors where conduits or raceways are to passthrough. Use heavy wall steel pipe sleeves, anchored to building construction and finishedplumb with wall, ceiling, or floor lines. Sealing assembly shall be UL listed.

B. Seal all penetrations thru fire-rated construction (i.e. walls, floors, ceilings, etc.) inaccordance with NEC. Fill void space around raceway.



3.6 TESTING AND ADJUSTING

A. The Contractor shall, at the conclusion of the project, performance test and adjust all of theelectrical systems to verify the performance of all systems and subsystems installed and inall areas of the building.

B. All power systems, communication systems, control systems and other related devices andsubsystems shall be operated by the Contractor for a period of no less than seventy-two (72)hours and shall be systematically tested for proper sequencing, control, connection, phasing,rotation and calibration.


DESIGN MECHANICAL INC WIRE, CABLES & CONNECTORS8/2021 260519 - 1

SECTION 26 05 19 - WIRE, CABLES & CONNECTORS

1.0 GENERAL

1.1 WORK INCLUDES


1. Provide all necessary wire and cable of the sizes and types shown on the plans orspecified herein for:

a. General power distribution and branch circuit systemb. Lighting systemsc. Control systemsd. Fire alarm systems (if applicable).


A. Installation shall comply with NFPA 70 - National Electric Code (NEC).

B. Insulation types, ratings and usage shall be in accordance with National Electrical Coderequirements.

C. Wire and cable shall be constructed in accordance with ICEA, NFPA, NEMA and IEEEpublished standards and shall be UL listed.

1.3 SUBMITTALS

A. No submittals required when using specified materials.

2.0 PRODUCTS

2.1 LOW VOLTAGE WIRE AND CABLE (600V OR LESS)

A. General

1. All conductors shall be 98% conductivity copper.

2. Unless otherwise noted, minimum wire size for lighting and power branch circuitsshall be No. 12 AWG. For control and auxiliary systems the minimum size shall beNo. 14 AWG.

3. Conductors for emergency power and exit wiring shall be minimum #12 AWG.

4. Insulation on power and control systems wiring 480 volts and below shall be 600volt rated, type XHHW, THWN or THHN. Insulation of conductors for other systemsshall be 600 volt unless otherwise noted.

5. Type XHHW or THWN insulation must be used for all conductors installed in wetlocations. This includes all outdoor feeders and branch circuits, undergroundconduit runs and conduits run in slab on grade.

6. Conductors size 8 AWG and larger shall be Class B stranded. Conductors size 10AWG and smaller may be solid or stranded. Conductors size 14 AWG for controland auxiliary systems shall be stranded.

B. Acceptable Manufacturers: Cable and wire shall be a standard type as manufactured by:



1. General Cable Company2. Carol3. Anaconda4. Roma5. ITT Royal6. Beldon Wire and Cable

2.3 CONNECTIONS AND SPLICES

A. 600V and Less

1. All components used at wiring terminations, connections and splices shall be ULlisted.

2. Connectors for joints #10 AWG and smaller sizes to be made with springconnectors insulated with vinyl skirt and live spring. Prior to installation, wires shallbe properly twisted together.

3. Connectors for #8 AWG (copper) and up to #2/0 sizes to be high-pressure typemechanical crimp connectors applied to a cleaned wire surface. Insulate spliceswith electrical insulating putty and tape to cover with four layers, half lapped.

4. Connections for #3/0 (copper) and larger shall be Cadwelded. Insulate splices usingelectrical insulating putty and tape to cover with four layers, half lapped.

B. Acceptable Manufacturers

1. Thomas and Betts2. 3M3. Buchanan4. Ideal

3.0 EXECUTION

3.1 INSTALLATION

A. General

1. A separate neutral, sized in accordance with the National Electrical Code shall beinstalled for each feeder or branch circuit.

2. Install vinyl markers to identify branch circuits where they enter panel boards, pullboxes, junction boxes and device boxes.

3. Color coding shall occur at all conductor termination points and in all junction boxesand pullboxes. Identification may be by colored insulation or colored electrical tapeat the Contractor's option (See Section 16075 - Electrical Identification).

B. Power and Branch Circuits

1. Conductor sizes as shown on the Drawings and specified herein are minimum andshall be increased as required to maintain a minimum voltage drop of 3% for anybranch circuit and 5% at any point in the system. Conductor size shall be increasedas required by NEC where more conductors are installed in a common racewaythan indicated on the Drawings.



2. Conductors shall be color coded for their entire length in accordance with NEC; allwiring shall be color coded using the same color for each conductor within a system.

3. Wire size shall be #12 AWG minimum for branch circuit wiring.

4. Minimum size conductors for 120/208V or 277/480V shall be #12 AWG. Increaseconductors at least one (1) size for home run feeders over 75 feet long or if furthestoutlet is greater than 125 feet from feeder panel.

C. Control Systems

1. Control and systems wiring shall be terminated using forked tongue terminals.

2. Terminal strip connectors shall be ratchet-tooled in accordance with manufacturer’srecommendations. Plier type crimp is not acceptable.

D. Provide self adhesive tape minimum 3-inch wide band on larger size conductors for colorcodes. Tape color shall be per conductor color codes. Tape shall be provided at allterminations in switchgear, panelboards, pull boxes, motor controllers, disconnect andstarters.

F. All fasteners and lugs used for electrical connections shall be torqued to values indicated bymanufacturer’s instructions. Use particular care to equalize lug torques where parallelconductor feeders are used. Use approved lugs when copper conductor is to be connectedto aluminum bus.

3.2 TESTING

A. Upon completion of cable and wire installation, but before termination to equipment, testeach wire for grounds and short circuits. Replace or correct defective wiring.


DESIGN MECHANICAL INC GROUNDING8/2021 260526 - 1

SECTION 26 05 26 - GROUNDING

1.0 GENERAL

1.1 WORK INCLUDES

A. Electrical Contractor provide:

1. Grounding systems complete as shown in the Contract Documents and as specifiedherein, including but not limited to the following:

a. Main Serviceb. Equipment Groundingc. Transformer Groundingd. Driven rod electrode fielde. Wiring Devices


A. Equipment and system grounding shall be in accordance with NFPA 70 - National ElectricalCode (NEC), 2002 edition.

B. Grounding and bonding shall be performed in accordance with National Electrical InstallationStandards NECA 331-2004, Standard for Installing Building and Service EntranceGrounding.

2.0 PRODUCTS

2.1 MATERIALS

A. Pipe Clamps

1. Pipe clamps shall be heavy duty, high copper alloy or cast bronze with silicon-bronze threaded fasteners; saddle type designed for the size of conductor indicatedon the Drawings.

B. Beam Flanges

1. Beam flanges shall be compression type, heavy duty, bronze construction andprovide a minimum 8 square inches bonding surface.

C. Ground Rods

1. Copper - encased steel, 5/8” outside diameter, minimum length of 10 feet.

D. Connections:

1. All rod to cable, and cable to cable connections shall be by an approved exothermicor mechanical weld process.

2. Connections to metallic pipe may be by either exothermic weld or approved groundclamp.

3. Any splices to ground electrode conductors shall be exothermic weld only.



E. Terminating Lugs

1. Exothermic weld or crimp compression type

F. Wire

1. Equipment grounding conductors shall be insulated. Insulation shall be 600 volt,same type as phase conductors and green in color.

2. Ground electrode conductors shall be bare annealed copper.

2.2 APPROVED MANUFACTURERS

1. T&B2. O-Z Gedney Mfg. Co.3. Burndy

3.0 EXECUTION

3.1 INSTALLATION

A. The building shall have one (1) building-wide grounding system. Electrical contractorshall be responsible for making the appropriate connections between the structural steel,water system, grounding rod(s), etc.

B. Ground all equipment, including but not limited to panelboards, switchboards,transformers, conduit systems, receptacles, light fixtures, appliances, and otherapparatus, to the grounding system. Ground receptacles and other equipment with aseparate grounding wire. Pull separate ground to all receptacles and other equipment,DO NOT use conduit as a means for grounding of receptacles or any other devices.

C. Electrical systems grounding conductors shall be installed in metallic raceway unlessotherwise shown on the Drawings.

D. Transformers shall be grounded to conform with the NEC.

E. Grounding conductor shall be sized in accordance with NEC. Maximum resistance to groundshall not exceed 25 Ohms.

F. For electronic equipment, a unipoint grounding technique shall be employed. Shields andground shall be brought to a single ground plane connected by an equipment groundingconductor to a panelboard ground bar, except as may otherwise be indicated on theDrawings.

G. All conduits for 120 VAC and above voltages shall contain minimum #12 THWN greeninsulated ground conductor.

H. All conduits and buses entering switchboard/panelboard shall be grounded toswitchboard/panelboard ground bus.

I. Bond all raceways, cabinet enclosures, and noncurrent-carrying parts of equipment togrounding system. Bond raceways such that a continuous path for current flow ismaintained.



J. All greenfield shall have green ground conductor.

3.2 SERVICE ENTRANCE GROUNDING

A. Electrical Contractor shall provide grounding for secondary of main service transformer.Transformer grounding shall be in accordance with the NEC.

B. Ground electrical service neutral at service entrance to metal underground water pipe,structural steel, rebar in footings and supplementary made electrodes (ground rods).

C. Connect main grounding electrode conductor(s) to water piping, structural steel and rebarwith an approved ground clamp or exothermic weld.

D. Make connections to flanged piping at street side of flange. Provide bonding jumper aroundinsulated joints, filtering devices, water meter and similar equipment where necessary tomaintain the electrical continuity of the bonding connection to interior piping.

E. The grounding bus shall be bonded to the grounded neutral bar inside the servicedisconnect enclosure (i.e. main panel/disconnect at service entrance) using a Main BondingJumper.


A. Ground resistance shall be measured using suitable ground resistance measuringequipment.

B. Resistance measurement shall be from the system neutral connection at the serviceentrance to a convenient ground reference point. The ground reference point should belocated to minimize the effects of other existing grounding electrodes.

C. Ground resistance shall not exceed 16 OHMS. When resistance exceeds 10 OHMS, one ofthe following measures shall be taken to reduce the ground resistance:

1. Drive and bond additional ground rods at two rod length intervals.2. Treat the soil in the vicinity of the electrode with metallic salts.3. Remove soil from around the electrode and replace with bentonite.4. Use a Nationally Recognized Testing Laboratory approved electrolytic chemical

ground rod

D. All resistance tests shall be taken no sooner than 48 hours after a measurable rainfall.


DESIGN MECHANICAL INC CONDUIT, BOXES AND RACEWAYS8/2021 260533 - 1

SECTION 26 05 33 - CONDUIT, BOXES AND RACEWAYS

1.0 GENERAL

1.1 WORK INCLUDES


1. Furnish and install complete conduit and raceway systems as required for power,lighting, control, communications, fire and safety systems as shown in the Drawingsand specified herein.

2. Furnish and install all outlet, junction and pull boxes as indicated on the Drawingsand as necessary to install the required conduit and wiring in a neat andworkmanlike manner, as specified herein.


A. Pull boxes and junction boxes shall be in accordance with NEC requirements and shall belisted by a Nationally Recognized Testing Laboratory.

B. Raceways shall meet NEMA standards and shall be listed and labeled by a NationallyRecognized Testing Laboratory.

2.0 PRODUCTS

2.1 CONDUIT

A. Thin wall conduit (EMT) shall be installed for all work except where noted otherwise.

1. EMT, couplings, and fittings shall have a circular cross section of sufficient diameterto meet all State Codes. The wall thickness shall be uniform throughout with theinterior surface free of defects. Welding of seams shall be continuous.

B. Rigid galvanized steel conduits shall be used outdoors and in all mechanical rooms wherenot supported directly to walls or ceilings.

1. Rigid conduit shall be heavy wall, threaded, hot dipped galvanized steel. Eachsection of conduit furnished shall be free from blisters and other surface defects.Galvanizing shall not crack or flake when conduit is bent.

C. PVC conduits shall be installed underground or in concrete slabs. Rigid galvanized elbowsshall be used for all stub-ups through or out of concrete slabs.

1. PVC conduit shall be extra heavy wall, Schedule 80. Conduit shall be suitable foruse with 90 degree C insulated wire. Conduit, fittings, and cement shall be of thesame manufacturer.

D. Jacketed flexible steel conduit (Sealtite) shall be used in wet areas where flexible conduitconnections are required and on all motorized equipment and motors.

1. Flexible steel conduit shall be made from a continuous length of galvanized coldrolled steel strip, spirally wound. Adjacent strips shall have locked typedconstruction with all the edges turned in.



E. Liquid-tight flexible steel conduit shall consist of a steel core of the same construction asspecified for flexible steel conduits, with an extruded PVC jacket.

F. Minimum conduit size shall be ¾-inch for all home runs. Runouts serving a single electricaldevice may be ½-inch.

G. All conduit shall be listed by a Nationally Recognized Testing Laboratory.

H. Acceptable Manufacturer’s

1. Pittsburgh Steel2. Allied3. Republic Steel4. National Electric5. Keystone6. Jones and Laughlin7. Carlon

2.2 FITTINGS

A. All fittings shall be UL Listed, insulated-throat type.

B. Couplings and connectors for thin wall conduit shall be all steel type. No die cast connectorswill be allowed.

C. Expansion and deflection fittings shall be of a type suitable for the particular condition andshall be complete with bonding jumper.

D. Acceptable Manufacturer’s

1. Thomas and Betts (T&B)2. O-Z Gedney3. Appleton4. Raco

2.3 BOXES

A. Flush outlet and switch boxes shall be made of code gauge galvanized steel, minimum 3-1/2" depth, unless otherwise specified or shown on the Drawings. Box sizes shall beselected as required to comply with the NEC.

B. Junction and pull boxes shall be made of code gauge galvanized steel, minimum 4” squareand 1-1/2” deep, with removable cover plates fastened with screws or hinged doors asindicated or required. Box sizes shall be increased as required to comply with the NEC.

C. Boxes for exposed work in finished areas shall be Type FS/FD with threaded hubs and rigidconduit risers.

D. Steel boxes cast in concrete or installed in masonry construction shall be specificallydesigned for concrete installation.

E. Boxes used outdoors shall be weatherproof.

F. Acceptable Manufacturer’s



1. Appleton2. Raco3. Killark4. Hoffman5. Thomas and Betts/Steel City6. Square D7. O.Z./Gedney

G. Power Cable Trays:

1. Manufacturers: Subject to compliance with requirements, provide products byone of the following:a. Eaton Redi-Rail RS106A as basis of designa. Cablofil Inc.b. Cooper B-Line, Inc.

2. Cable Tray Materials: Aluminum, suitable for indoors and protected againstcorrosion.

3. Ladder Style Cable Trays: 18 inches & 24” wide and 5.5 inches deep. Ladderspacing shall not exceed 6 inches.

3.0 EXECUTION

3.1 CONDUIT

A. In finished areas, conduit must be concealed above accessible ceilings, within the buildingstructure, or within chases. Exposed conduits to be run tight to wall or ceiling and installed ina neat workmanlike manner, ready for painting.

B. All conduit shall be supported by suitable clamps or hangers attached to the elements of thebuilding structure at the required spacing to provide rigid installation. In no case shall conduitbe attached to or supported from adjoining ductwork or pipe, ceiling systems, or installed insuch manner as to prevent the ready removal of other pipe for repairs.

C. Install conduit parallel or perpendicular to building lines (except where run in or below floorslabs). Keep conduit runs as close to underside of structure as possible.

D. No more than the equivalent of four (4) 90 degree bends will be allowed in any one conduitrun. Where more bends are necessary in any single run, a pull box shall be installed. Pullboxes shall also be installed in long runs at a maximum separation of 100'-0".

E. Exercise necessary precautions to prevent accumulation of water, dirt, or concrete inconduits during execution of electrical work. Conduit in which water or foreign material hasbeen permitted to accumulate shall be thoroughly cleaned, or replaced where suchaccumulations cannot be removed.

F. Do not run conduit in slabs under boilers, hot water heaters or other heat-producingequipment and maintain minimum 6" clearance from hot water piping.

G. Install a 240 lb. tensile strength poly pull line or a #12 THHN or THWN pull wire in all emptyconduits.



H. Install expansion fittings at all locations where conduits cross building expansion joints.

I. Secure rigid conduit at cabinets and boxes using insulated throat type grounding andbonding bushings. Locknuts shall be tightened to cut through painted surfaces.

J. Where a number of conduits are to be run exposed and parallel, one with another, they shallbe grouped and supported by trapeze hangers or unistrut racks tight to the buildingstructure. Hanger rods shall be fastened to concrete ceiling slab with threaded rod in steelexpansion bolt type inserts. Trapeze hangers shall be Unistrut, angle iron or channel iron.Each conduit shall be clamped to the trapeze hanger with conduit clamps.

K. Metallic conduit systems shall be grounded in accordance with the NEC, and as shownon the Drawings. Metallic conduit systems shall be metallically joined together into acontinuous electrical conductor and shall be so connected to all boxes, fittings, andcabinets to provide effective electrical continuity.

L. Threaded couplings shall be used for joints on rigid metallic conduit. Field joints shall becut square, reamed smooth to remove burrs and sharp and rough edges, and properlythreaded to receive couplings. The use of running threads is not permitted.

M. Conduit systems shall be supported at each elbow and the end of every straight runterminating in a box or cabinet. Fastening shall be provided at maximum spacing of 7 ft.for horizontal runs and 8 ft. for vertical runs, unless codes require more stringentsupporting. Conduit shall not be fastened to other pipe or installed to prevent readyremoval of other pipe for repairs. The use of perforated strap hangers is not permitted.

N. Conduit to be buried shall be installed a minimum of 24 in. below finished grade.

O. Where telephone/data outlet locations are indicated on the Drawings, install 1” EMT fromtelephone outlet box and 1” conduit from data outlet box (4" x 4" x 1-1/2" or 4" x 2" x 1-1/2")to top of finished wall or a point above accessible ceiling.

3.2 BOXES

A. Support all boxes independently of conduit except for cast boxes connected to two (2) rigidconduits both supported within 12-inches of box.

B. Provide knockout closures of the correct size to cap unused knockout holes where blankshave been removed.

C. Outlet Boxes

1. Flush mount outlet boxes in areas other than mechanical rooms, electrical roomsand above removable ceilings.

2. Provide at least 6-inch separation between outlet boxes. Do not install boxes backto back in same wall unless specifically noted on the plans. If specifically noted onthe plans, install 2 pieces of 5/8” drywall between the boxes to maintain both firerating and soundproofing of wall.

3. Use multiple gang boxes where possible when more than one device is mountedtogether. Provide barriers to separate different voltage systems.

4. Provide weatherproof cast boxes for exterior and wet locations.

D. Junction and Pull Boxes



a. Mount junction and pull boxes securely to building structure in a location that meetsthe requirements of the National Electrical Code for accessibility and work spaceclearance. Coordinate exact locations of work with other trades.

b. Support independent of conduitc. Locate pull or junction boxes to limit conduit runs to no more than 100 linear feet or

four (4) 90 degree bends between pulling points.

E. Provide covers for all boxes.

3.3 MOTOR CONNECTIONS

A. The final 18 in. of connections to motors shall be made in liquid-tight flexible steelconduit.


DESIGN MECHANICAL INC ELECTRICAL IDENTIFICATION8/2021 260553 - 1

SECTION 26 05 53 - ELECTRICAL IDENTIFICATION

1.0 GENERAL

1.1 WORK INCLUDES

A. Electrical Contractor: Provide identification for all new electrical equipment as specifiedherein, and as needed for a complete and proper installation including, but notnecessarily limited to:

1. Panelboards2. Conductors and Conduit3. All other pertinent electrical devices


A. Comply with:1. ANSI A 13.1., Identification of Piping Systems.2. NFPA 70 - National Electric Code (NEC)

1.3 REFERENCES.

A. American National Standards Institute (ANSI): ANSI A13.1 - Identification of PipingSystems.

B. Underwriters Laboratories, Inc. (UL): All products UL listed and labeled.

C. Manufacturers' Catalogs: Specification manufacturers' catalogs are incorporated byreference to same force and effect as if repeated herein in full.

1.4 SUBMITTALS

A. Provide schedule of proposed identification plate wording for A/E approval.

2.0 PRODUCTS

2.1 EQUIPMENT IDENTIFICATION PLATES

A. Provide plates for switchgear, disconnects, panelboards and all other pertinent electricalequipment consisting of machine engraved laminated plastic. Plate field shall be blackcore.

1. Size of plate shall be commensurate with lettering thereon.

2. Lettering for major items of equipment, such as a switchboard, shall be 3/4" inheight. Lettering for smaller items, such as switches, shall be 1/2" in height.

3. Wording on plate shall contain the following information as appropriate andapproved by the Engineer.a. Drawing nomenclature.b. Equipment served.c. Voltage.

B. Acceptable Manufacturers:1. Quentin D. Schwab, 606 E. Dodson Dr., Urbana, IL 61801.2. Joe Halm Building Specialties, Box 525, LaGrange, IL.3. Mechanical Tag Systems, Box 1565, Cedar Rapids, IA 52406.4. Seton Name Plate Corp., 592 Boulevard, New Haven, CT 06505.5. N & E Specialty Co., Box 3518, Peoria, IL 61614.6. Artistic Engravers, Box 1385, Peoria, IL 61654.


DESIGN MECHANICAL INC ELECTRICAL IDENTIFICATION8/2021 260553 - 2

2.2 WIRING SYSTEM IDENTIFICATION

A. Wire insulation color:

1. 277Y/480V, 3 phase

Phase A - BrownPhase B - OrangePhase C - YellowNeutral - WhiteGround - GreenIsolated Ground Green with yellow stripe

2. 120Y/208V, 3 phase

Phase A - BlackPhase B - RedPhase C - BlueNeutral - WhiteGround - GreenIsolated Ground Green with yellow stripe

B. Code all wire and cable larger than color coded sizes available from manufacturer byapplication of electrical plastic tape in colors specified. Apply tape in uniform mannercircling wire or cable. Half-lap tape for length of cable as required by NEC. Tape shall be3M, Plymouth or Permacel.

C. Maintain consistent coding throughout installation to ensure proper phase identification.

D. Control wiring may use numbered or lettered marker tape. Record wiring so marked onproject record documents. Marker tape shall be 3M Scotch Code, Panduit Insta-Code, T& B E-Z Coder, Stranco Tuff-Code, Bradypack or Electrovert.

3.0 EXECUTION

3.1 INSTALLATION

A. Affix Equipment Identification Plates to equipment with stainless steel self tappingscrews.

B. Apply markers or bands on all exposed conduit at 50 ft. intervals, at all junction boxesand on both sides of walls through which conduits penetrate.


DESIGN MECHANICAL INC SERVICE AND DISTRIBUTION8/2021 262416 - 1

SECTION 26 24 16 - SERVICE AND DISTRIBUTION

1.0 GENERAL

1.1 WORK INCLUDES

A. Electrical Contractor

1. Provide complete electrical system where shown on the Drawings, as specifiedherein, and as needed for a complete and proper installation including, but notnecessarily limited to:

a. Main Distribution panel(s)b. Branch circuit panel(s) for power and lightingc. Circuit Breakersd. Safety/Disconnect Switchese. Fuses


A. Switchboards, panelboards, overcurrent devices and cabinets shall be NationallyRecognized Testing Laboratory.

B. Materials, equipment, and workmanship shall conform to the applicable standards of thefollowing organizations:

1. National Electric Code (NEC), 2002 edition.2. National Electrical Manufacturing Association (NEMA).3. Underwriters Laboratory (UL).4. Insulated Cable Engineer Association (ICEA).

1.3 SUBMITTALS

A. Product data:

1. Manufacturer’s specifications and other data needed to prove compliance withthe specified requirements.

2. Manufacturer’s recommended installation procedures.

B. Manual: Upon completion of this portion of the Work, and as a condition of itsacceptance, deliver to the A/E two (2) copies of all operation and maintenance. Includewithin each manual:

1. Copy of approved Record Documents for this portion of the work includinginstallation instructions.

2. Copies of all circuit directories.

3. Copies of all warranties and guarantees.



2.0 PRODUCTS

2.1 GENERAL

A Enclosures shall meet the following construction standards unless noted otherwise:

1. Indoors: NEMA 1, general use or NEMA 12, dusttight2. Outdoors: NEMA 3R, raintight

2.2 MAIN SWITCHBOARD

A. The switchboard shall be dead front with front access only in a NEMA 1 enclosure.

B. The switchboard bussing shall be plated copper in accordance with UL 891.

C. Switches shall be provided in the sizes and arrangements shown on the Drawings.

D. Acceptable Manufacturer’s

1. Square D2. Siemens3. Cutler-Hammer4. General Electric

2.3 PANELBOARDS

A. Panelboards shall consist of devices assembled into single interior unit mounted in sheetsteel enclosure consisting of box and front. Minimum capacity shall be as noted on theDrawings.

B. Boxes shall be fabricated from code-gauge, galvanized sheet steel, with turned edgeprovided around front of box for rigidity and attachment of front, and finished in grayenamel over rust inhibitor.

C. Wiring gutters shall be in accordance with the NEC.

D. Fronts shall be flat piece of sheet steel with opening, attached to box with adjustable trimclamps.

E. Interiors shall be unit type, mounted on a back plate, properly reinforced by flangingproviding a rigid assembly to protect against damage during handling or installation.

F. Units shall be easily removable without disturbing adjacent units, structure, or insulation,and shall be provided with removable dead front shield for easy access to wiring.

G. Adjacent poles shall be of unlike polarity and alternated in sequence.

H. Panelboards shall be supplied with a grounding bus.

I. Panelboards shall be listed by a Nationally Recognized Testing Laboratory andconstructed and tested in accordance with NEMA standards

J. Panelboards shall have copper bussing.

K. Unless noted otherwise, all panelboards shall be supplied with keyed locks.



L. Acceptable Manufacturer’s

1. Square D - NQOD Series2. Siemens - Sentron S1 Series3. Cutler-Hammer - PLR1A Series4. General Electric

2.4 CIRCUIT BREAKERS

A. Circuit breakers shall have the following: quick-make, quick-break operatingmechanisms; over-center, trip-free, toggle-type switch; silver-alloy contacts; arcquencher; and thermal-magnetic, non-adjustable, fixed trip, unless otherwise specified.

B. Tripping shall be indicated by the position of the handle between the on and off positions.There shall be a common trip on multi-pole breakers.

C. Circuit breakers shall be listed by a Nationally Recognized Testing Laboratory and testedin accordance with NEMA standards.

D. Connections shall be bolted.

E. Acceptable Manufacturer’s

1. Square D - QOB Series2. Siemens - BL Series3. Cutler-Hammer - BAB Series4. General Electric

2.5 SAFETY/DISCONNECT SWITCHES

A. All safety or disconnect switches shall be classified as Heavy Duty and enclosed asrequired by NEMA Standards. Switch size and fusing shall be as shown on the Drawings.

B. Switches shall have a quick-make, quick-break mechanism operating through the boxand not the cover. The switch blades shall be visible when the hinged door is open.

C. Switches shall have high pressure fuseholders, interlocking cover with handle to preventopening of cover with the switch in the on position and provisions to padlock the switch inthe off position.

D. Safety switches shall be listed by a Nationally Recognized Testing Laboratory andconstructed and tested in accordance with NEMA standards.

E. Acceptable Manufacturer’s

1. Square - D H Series2. Siemens - VBII Series3. Cutler-Hammer - DH Series4. General Electric

2.7 FUSES

A. Cartridge fuses rated 600 Amps and less shall have standard NEC dimensions. Thoserated at more than 600 Amps shall be for stud mounting and shall have dimensions to fitthe equipment specified.



B. Maximum allowable delays shall be in accordance with NEMA standards whereapplicable. Dual element, time delay fuses shall be capable of carrying 500% of ratedcurrent for at least 10 seconds. As specified and/or where necessary, provide current-limiting fuses. Where current limiting fuses are used, identification must be present andpermanent to aid in future replacement.

C. Approved Manufacturer’s

1. Bussmann1. Gould-Shawmut3. Littlefuse

2.9 GROUNDING

A. The building shall have one (1) building-wide grounding system. Electrical contractorshall be responsible for making the appropriate connections between the structural steel,water system, grounding rod(s), etc…

B. Ground all equipment, including panelboards, switchboards, transformers, conduitsystems, receptacles, light fixtures, appliances, and other apparatus to an independentgrounding system. Ground receptacles and other equipment with a separate groundingwire. Pull separate ground to all receptacles and other equipment, DO NOT use conduitas a means for grounding of receptacles or any other devices.

3.0 EXECUTION

3.1 GENERAL

A. Workmanship and method of construction shall conform to the applicable standards ofthe National Electric Code (NEC).

B. Examine the areas and conditions under which Work of this Section will be performed.Correct conditions detrimental to timely and proper completion of the Work. Do notproceed until unsatisfactory conditions are corrected.

3.2 PREPARATION

A. Coordinate:

1. Coordinate as necessary with other trades to assure proper and adequateprovision in the work of those trades for interface with the Work of this Section.

2. Coordinate the installation of electrical items with the schedule for work of othertrades to prevent unnecessary delays in the total Work.

3. Where lighting fixtures and other electrical items are shown in conflict withlocations of structural members and mechanical or other equipment, providerequired supports and wiring to clear the encroachment.

B. Contractor shall verify all measurements at the site.

C. The Electrical Drawings are diagrammatic, but are required to be followed, as closely asactual construction and work of other trades will permit. Where deviations are required toconform to actual construction and the Work of other trades, make such deviations



without additional cost to the Owner. All deviations shall be noted in the As-BuiltDrawings, with all major deviations verified by the Architect/Engineer.

3.4 INSTALLATION OF SWITCHBOARDS AND POWER PANELS

A. Mounting

1. Unless otherwise shown on the Contract Documents, install panelboards with thetop of the trim 6'-3" above the finished floor.

2. Switchboards shall be convenient for use, readily accessible for maintenance,clear of traffic lanes, and in a dry ventilated space free of corrosive fumes orgases.

3. Panelboards serving lighting and appliance circuits shall be located on the samefloor as the circuits they serve. This does not apply to emergency system circuits.

4. Provide circuit breakers in new panelboards as indicated by the ContractDocuments.

B. Labeling

1. Mount a typewritten directory behind glass or plastic on the inside of each paneldoor and, on the directory, show the circuit number and complete description ofall loads served.

2. Provide engraved nameplate on front of panelboard with panelboard designation,and feeder source.

3.5 CLEAN AND ADJUST

A. Upon completion of the Work of this Section, thoroughly clean all exposed portions of theelectrical installation, removing all traces of soil, labels, grease, oil and other foreignmaterial and using only the type of cleaner recommended by the manufacturer of the itembeing cleaned.

B. Thoroughly indoctrinate the Owner’s operation and maintenance personnel in thecontents of the operations and maintenance manual required to be submitted.


DESIGN MECHANICAL INC WIRING DEVICES8/2021 262726 - 1

SECTION 26 27 26 - WIRING DEVICES

1.0 GENERAL

1.1 WORK INCLUDES


1. Furnish and install wiring devices, complete with cover plates, as shown on theDrawings and specified herein.

2. Provide receptacle ampacity and electrode configuration to accommodateequipment to be served.


A. Use adequate number of skilled workmen who are thoroughly trained and experienced inthe necessary crafts and who are completely familiar with the specified requirements andthe methods needed for proper performance of the work of this section.

B. Wiring Devices shall be listed and labeled by a Nationally Recognized TestingLaboratory.

C. Wiring Devices shall be in accordance with NEC, NFPA, and NEMA standards.

1.3 SUBMITTALS

A. Submit product literature for the following:1. Receptacles2. Switches

B. Provide color selection information for receptacles, switches and cover plates. A/E will selectcolor.

2.0 PRODUCTS

2.1 GENERAL

A. Grounding type devices shall meet all requirements set forth by the NEC and/or StateCodes.

B. Unless noted otherwise, all wiring devices shall be specification grade.

C. Colors for receptacles, switches and cover plates shall be selected by the A/E.

2.2 RECEPTACLES

A. General

1. Unless otherwise noted, receptacles shall be white in color, duplex, polarized, 3-wire, grounding type with bronze contacts, rated for 20 Amp at 120 VAC, withparallel slots and two ground terminals. Receptacles shall have screw terminalsarranged for back or side wiring.

2. Weatherproof receptacles shall weatherproof while in use type.



3. Special purpose receptacles shall be of the capacity and design indicated on theDrawings.

B. General Purpose Receptacles

1. General-purpose receptacles for all wall type convenience outlets in non-hazardouslocations shall be 20 Amp, 120V, 3-wire, grounding type, NEMA 5-20R, back andside wire compatible, heavy-duty industrial specification grade.

2. Acceptable Manufacturersa. Leviton 5362-Ab. Hubbell HBL5362c. Pass & Seymour 5362-A

C. GFCI Receptacles

1. Duplex receptacles with ground fault circuit interrupters (GFCI) shall comply with ULClass A GFCI testing in accordance with UL Standard No. 943. Receptacles shallbe 20 Amp with NEMA 5-20R receptacle configuration. Receptacle shall be backand side wire compatible, feed-thru type.

2. Acceptable Manufacturersa. Leviton 6899b. Hubbell GF5362c. Pass & Seymour 2091-S

2.3 SWITCHES

A. General Purpose Toggle Switches: Switches for use in non-hazardous locations shall bewhite in color (unless otherwise noted), furnished with screw terminals for looped or backwiring and be of the quiet, toggle type. Switches shall be industrial specification grade,rated for 20 Amp at 120/277 VAC.

1. Single Polea. Leviton 1221-2b. Hubbell HBL1221c. Pass & Seymour 20AC1

2. Two Polea. Leviton 1222-2b. Hubbell HBL1222c. Pass & Seymour 20AC2

3. 3-waya. Leviton 1223-2b. Hubbell HBL1223c. Pass & Seymour 20AC3

4. 4-waya. Leviton 1224-2b. Hubbell HBL1224c. Pass & Seymour 20AC4

2.4 COVER PLATES

A. Indoors: Cover plates shall be high-strength, scratch-resistant, smooth nylon, white incolor (unless otherwise noted).



B. Outdoors:

1. Dry Locations: Cover plates shall be stainless steel or die cast aluminum. Platesof non-ferrous metal shall be not less than 0.04 in. thick; those of ferrous metalshall be not less than 0.03 in. thick

2. Wet Locations: Cover plates shall be die cast aluminum or impact resistantthermoplastic construction and rated weatherproof while-in-use.

C. Acceptable Manufacturer’s1. Leviton2. Hubbell3. Pass & Seymour

3.0 EXECUTION

3. 1 GENERAL INSTALLATION

A. Boxes and devices shall be mounted vertically and securely fastened.

B. Mount switches in multi-gang boxes wherever several devices are grouped together.

C. Where more than one switch is shown at a location, switches shall be installed under agang plate

D. Unless otherwise noted on the drawings, all toggle switches shall be installed 46-inchesabove finished floor level and all general purpose receptacles shall be 18-inches abovefinished floor level. All dimensions refer to the centerline of the box.

E. Boxes and devices located in a brick veneer wall shall be mounted horizontally in the brickcourse.


DESIGN MECHANICAL INC LIGHTING FIXTURES8/2021 265100 - 1

SECTION 26 51 00 - LIGHTING FIXTURES

1. GENERAL

1.1 WORK INCLUDES


1. Furnish and install lighting fixtures complete with lamps in accordance with thelighting fixture schedule shown on the Drawings and described herein.

2. Units shall be complete with suspension accessories, canopies, sockets, louvers,frames, and rough-in boxes, wired and assembled for a complete workingsystem.

1.2 REGULATORY REQUIREMENTS

A. All fixtures and accessories shall be listed by a Nationally Recognized Testing Laboratory(NTSL).

B. All fixtures shall be in accordance with NEC.

1.3 SUBMITTALS

A. Provide manufacturer's product information for all Luminaries.

1.4 WARRANTY

A. In addition to standard one (1) year warranty on all labor and materials, provide a five (5)year warranty on electronic ballasts for all fluorescent lighting fixtures.

2. PRODUCTS

2.1 GENERAL

A. All fixtures shall come pre-assembled and complete with all sockets (incandescent to bespring supported), lamp ends, ballasts, transformers, fixture ends, trim rings, plates and lowdensity mounting kits (as required) for a complete installation.

B. Electrical Contractor shall be responsible for reviewing all mounting arrangements prior toordering any products. Electrical Contractor shall be responsible for ordering all of the properfixtures, mounting hardware and misc. for a complete project.

C. All recessed fixtures shall fit tight to ceiling to eliminate all light leaks.

D. Trim kits, when not secured internally to fixture, shall be secured to structure at a minimumof two points.

E. Incandescent and high intensity discharge recessed lighting fixtures are to be furnished withthermal cut outs as required by the NEC.


DESIGN MECHANICAL INC LIGHTING FIXTURES8/2021 265100 - 2

2.2 FIXTURES

A. As noted on the Drawings

3. EXECUTION

3.1 INSTALLATION

A. Use steel wire hangers fastened to the building structure to support recessed fixtures atdiagonal corners (Two corners suspended). Fixtures are to fit tight against construction toeliminate light leaks. Recessed downlights are to be provided with adjustable mountingbars/frames for drywall or lay-in ceilings as required. Fixtures supported by the lay-in ceilinggrid are not acceptable.

B. Wall-mounted fixtures shall be mounted plumb with building lines and installed with properbox and cover hardware.

C. Install all surface mounted or suspended lighting fixtures such that the weight of thefixture is supported, either directly or indirectly, by a sound and safe structural member ofthe building, using adequate number and type of fastenings to assure safe installation.Screwed fastenings, and toggle bolts through ceiling material or wall paneling, are notacceptable. Mount suspended fixtures at 8’-0” to bottom of fixture above finished floorunless otherwise noted on the Drawings.

E. Wire fixtures with fixture wiring of at least 50C rating. Where fixtures are mounted incontinuous rows, provide conductors in wiring channels of the same size as the circuitwires supplying the row of fixtures.

F. Fixtures in mechanical rooms shall be located to clear piping, ductwork, valves and otherequipment.

G. At completion of installation and before turning over to Owner, clean and remove all dirt andsmudges from all lighting fixtures including lenses, louvers and reflectors.


DESIGN MECHANICAL INC. FIRE ALARM AND DETECTION SYSTEM8/2021 283111-1

SECTION 28 31 11 – FIRE ALARM AND DETECTION SYSTEM

1.0 GENERAL

1.1 WORK INCLUDED

A. Base Bid:

1. Provide an addressable fire alarm and detection system as shown on theDrawings and specified herein, and as needed for a complete and properinstallation, including but not necessarily limited to:

a. Control panelsb. Annunciatorsc. Signal devices (horns strobes and combination horn/strobes).d. Initiating Devices (smoke, heat and multi-technology detectors).e. Pull stationsf. Door Hold Opens

2. Provide control of smoke dampers (if applicable).

3. Provide monitoring and alarm notification for all HVAC units equipped with ductmounted smoke detectors.

4. Provide monitoring and alarm notification for all automatic fire extinguishingsystems serving kitchen/cooking hoods.

5. Provide monitoring and alarm notification for all supervised fire sprinkler valvesand flow switches.


A. All equipment and components shall be the manufacturer's current model.

B. All materials, appliances, equipment and devices shall be tested and listed by a nationallyrecognized testing laboratory (NRTL) for use as part of a protected premises protectivesignaling (fire alarm) system.

C. System shall comply with requirements of authorities having jurisdiction includingapplicable building, ADA, IBC, and NFPA codes and standards.

1.3 SUBMITTALS

A. The Contractor shall furnish a complete set of Fire Alarm and Detection System Drawingsto the Architect/Engineer for review.

1. The Drawings shall show the location of control panel(s), annunciator(s),detection and signaling devices and all other devices as necessary for acomplete and proper system. The Drawings shall also include a fire alarm systemriser diagram.

B. Product Data:

1. Materials list of items provided under this Section



2. Manufacturer’s specifications and other data needed to prove compliance withthe specified requirements;

C. After construction is complete, the Contractor shall provide the Owner/Architect with a setof “as-built” drawings complete with three (3) sets of bound operating and maintenancemanuals.

1.4 SYSTEM DESCRIPTION

A. General

1. The System shall comply with all pertinent codes, rules, regulations and laws ofthe Authority Having Jurisdiction. The System shall comply in all respects withthe requirements of the specifications, manufacturer's recommendations andUnderwriters Laboratories Inc. (ULI) listings.

2. Provide certification that the entire system(s) has been inspected and tested, isinstalled entirely in accordance with the applicable codes, standards,manufacturer's recommendations and ULI listings, and is in proper working order.Contractor shall use "Fire Alarm System Certification and Description" asrequired by Section 1-6.2 of NFPA 72 - 1999 edition.

B. Provide complete fire detection and alarm system consisting of the following:

1. Fire alarm control panel(s).2. LCD remote annunciator(s).3. Manual pull stations.4. Smoke, heat and multi-technology detectors.5. Sprinkler system waterflow and valve supervisory switches.6. Interface with kitchen hood fire suppression systems.7. Horns, strobes and combination horn/strobes.8. Magnetic door hold opens.9. Elevator recall functions for primary and alternate floors and elevator power

shunt trip activation.10. Connection to a central station. The Owner shall arrange for telephone lines to

be terminated as directed by the installing contractor.11. Booster power supplies (as necessary).12. Cabling.

C. Sequence of Operations.

1. General 24 VDC NACs: Upon activation of any area smoke detector, heatdetector, manual pull station or sprinkler waterflow switch, the following functionsshall automatically occur:

1. The internal audible device shall sound at the control panel and remoteannunciator.

2. The LCD display shall indicate all applicable information associated withthe alarm condition including; device type, device location and time/date.

3. All system activity/events shall be documented in system history and onthe system printer (if applicable).

4. Any remote or local annunciator LCD/LED's associated with the alarmshall be illuminated.

5. Activate notification audible appliances <throughout the building> <firefloor, floor above, & floor below.>

6. Activate visual strobes notification appliances <throughout the building>



<fire floor, floor above, & floor below.>. The visual strobe shall continueto flash until the system has been reset. The visual strobe shall not stopoperating when the "Alarm Silence" is pressed.

7. Transmit an alarm signal to the central station.8. All automatic events programmed to the alarm point shall be executed

and the associated outputs activated.9. All stairwell/exit doors shall unlock throughout the building.10. All self-closing fire/smoke doors held open shall be released.

2. Duct Smoke Operation: Upon activation of any duct smoke detector, the followingfunctions shall automatically occur:


2. The LCD display shall indicate all applicable information associated withthe alarm condition including; device type, device location and time/date.

3. All system activity/events shall be recorded on the system printer andsystem history file.

4. Any remote or local annunciator LED's associated with the alarm shall beilluminated.

5. Transmit signals to remote annunciators located in <building securitydesk, the engineer's office and the building management office.>

6. Transmit an alarm signal to the central station.7. Shutdown the local air handling unit.8. All automatic events programmed to the alarm point shall be executed

and the associated outputs activated.

3. Supervisory Operation: Upon supervisory activation of any sprinkler valvesupervisory switch, the following functions shall automatically occur:


2. The LCD display shall indicate all applicable information associated withthe supervisory condition including; device type, device location andtime/date.

3. All system activity/events shall be documented on the system printer andsystem history file.

4. Any remote or local annunciator LCD/LED's associated with thesupervisory activation shall be illuminated.

5. Transmit a supervisory signal to the central station.

4. Trouble Operation: Upon activation of a trouble condition or signal from anydevice on the system, the following functions shall automatically occur:


2. The LCD display shall indicate all applicable information associated withthe trouble condition including; device type, device location andtime/date.

3. All system activity/events shall be documented on the system printer andsystem history file.

4. Any remote or local annunciator LCD/LED's associated with the troublezone shall be illuminated.

5. Transmit a trouble signal to the central station.



5. Monitor Activation: Upon activation of any device connected to a monitor circuit,the following functions shall automatically occur:

1. All system activity/events shall be documented on the system printer.2. The monitor LED will light and pre-programmed functions will activate.

D. System Configuration

1. Generala. All Life Safety System equipment shall be arranged and programmed to

provide a system for the early detection of fire, the notification of buildingoccupants, the automatic summoning of the local fire department, theoverride of the HVAC system operation, and the activation of otherauxiliary systems to inhibit the spread of smoke and fire, and to facilitatethe safe evacuation of building occupants.

b. The System shall utilize independently addressed, smoke detectors, heatdetectors and input/output modules as described elsewhere in thisspecification.

2 Initiating Device Circuitsa. The Initiating device circuits (IDC) used to monitor manual fire alarm

stations, smoke and heat detectors, waterflow switches, valvesupervisory switches, fire pump functions, etc. shall be <Class A (Style"D" or "E")> or <Class B (Style "A" or "B").>

3. 24 VDC Notification Appliance Circuitsa. 24 VDC Notification appliance circuits (NAC) shall be <Class A (Style

"Z")> or < Class B (Style "Y").> All notification appliance circuits shallhave a minimum circuit output rating of 2 amp @ 24 vdc. The notificationcircuits shall be power limited. Non-power limited circuits are notacceptable.

4. Signaling Line Circuitsa. The signaling line circuit shall communicate from a panel/node to

analog/addressable detectors, input modules, output modules, isolationmodules and notification appliance circuits.

b. Each signaling circuit connected to addressable/analog devices shallprovide a minimum of 20 spare addresses.

c. When a signaling line circuit covers more than one fire/smokecompartments, a wire-to-wire short shall not effect the operation of thecircuit from the other fire/smoke compartments.

d. The signaling line circuit (SLC) connecting panels and annunciators shallbe <Class A (style 7)>< Class B (style 4).>

e. The signaling line circuit connecting to addressable/analog devicesincluding, detectors, monitor modules, control modules, isolationmodules, and notification circuit modules shall be <Class A (style 6 or7)>< Class B (style 4).>

5. DACTa. The panel shall have a dialer (alarm communicator transmitter (DACT))

module to transmit alarm, supervisory and trouble signals to a CentralMonitoring Station (CMS). The DACT shall support dual telephoneslines, 20 PPS 4/2 communications, and configured for dual tone multi-frequency (DTMF) or pulse modes. It shall be possible to delay ACpower failure reports, auto test call, and site program using a touch tone



phone and password.

2.0 PRODUCTS

2.1 GENERAL

A. To the maximum extent practicable, use only the products of a single manufacturer.

B. Acceptable Manufacturer’s

1. Edwards Systems Technology (EST)2. Silent Knight3. Simplex

2.2 FIRE ALARM CONTROL PANEL

A. Microprocessor based, addressable, solid state type, with rechargeable batteries andground fault protection, able to be flush-mounted or surface-mounted, and expandable(via modules).

B. The control panel shall include all required hardware, software and system programmingto provide a complete and operational system. The control panel shall assure that lifesafety takes precedence among all panel activities.

C. The control panel shall include the following capacities:a. Support up to 380 analog/addressable points per panel (plus additional points via

networked panels)b. Support up to 5 fully supervised network remote annunciators.c. Support a DACT (dialer) for off premise notificationd. Support up to 576 chronological events in history.

D. The control panel shall include the following features:a. Provide auto programming and electronic addressing and mapping of

analog/addressable devices.b. Provide an operator interface display that shall include functions required for

annunciation, command and control system functions.c. Provide a discreet system control switch provided for reset, alarm silence, local

silence, drill switch, up/down switches, status switch, program switch, enable anddisable switches, activate and restore switches, reports switch and test switch.

d. Provide system reports that provide sensitivity and history details.e. Provide an authorized operator with the ability to operate or modify system

functions like system time, date, passwords; and autoprogram, enable mapping,restart the system and clear control panel event history file.

f. Provide an authorized operator to perform test functions within the installedsystem.

E. Supervision of system components, wiring, initiating devices and software shall beprovided by the control panel. Failure or fault of system component or wiring shall beindicated by type and location on the LCD display. Software and processor operationshall be independently monitored for failure.

2.3 POWER SUPPLY

A. Each system power supply shall be a minimum of 6 amps @ 24 vdc.



B. Upon failure of normal (AC) power, the affected portion(s) of the system shallautomatically switch over to secondary power without losing any alarm, trouble oroperator acknowledgment signals.

C. Each system power supply shall be individually annunicated and shall identify theinoperable power supply in the event of a trouble condition.

D. All standby batteries shall be continuously monitored by the system. Low battery anddisconnection of battery power supply conditions shall immediately annunciate as atrouble signal, identifying the deficient batteries.

E. All system power supplies shall be capable of recharging their associated batteries, froma fully discharged condition to a capacity sufficient to allow the system to performconsistent with the requirements of this section, in 48 hours maximum.

F. All AC power connections shall be to the building's designated emergency electricalpower circuit and shall meet the requirements of Section 1-5.2 of NFPA 72 - 1999. TheAC power circuit shall be installed in conduit raceway. The power circuit disconnectmeans shall be clearly labeled FIRE ALARM CIRCUIT CONTROL and shall have a redmarking. The location of the circuit disconnect shall be labeled permanently inside theeach control panel.

2.4 ANNUNCIATOR

A. Provide remote annunciator at main entrance to provide indication of system alarmsignals and/or trouble indication. The annunciator shall contain the following systemstatus indicators:1. 80 character Backlit Liquid Crystal Display.2. System Power Indicator - green LED.3. System Common Alarm - red LED.4. System Common Trouble - yellow LED.5. System Common Supervisory - yellow LED.6. System Common Monitor - yellow LED.7. System Ground Fault - yellow LED.8. System CPU Fault - yellow LED.9. System Disabled - yellow LED.10. System Test Point(s) - yellow LED.11. System Reset Switch with Integral yellow LED.12. System Alarm Silence Switch with Integral yellow LED.13. System Local Silence Switch with Integral yellow LED.14. System Drill Switch with Integral yellow LED15. System Message Queue Scroll Switches.16. Additional buttons as required to provide system control and operator functions.

B. The system shall be designed and equipped to receive, monitor, and annunciate signalsfrom devices and circuits installed throughout the building.

C. Receipt of alarm, trouble, and supervisory signals shall activate integral audible devicesat the control panel(s) and at each remote annunciation device.

D. Annunciator shall be flush or semi-flush mount.

2.5 DIALER - DACT

A. The system shall provide an off premise Digital Alarm Communications Transmitter



(DACT) capable of transmitting system alarm, trouble and supervisory events to a centralmonitoring station (CMS). The DACT shall support dual telephone lines, 20 PPS 4/2communications, and configured for dual tone multi-frequency (DTMF) or pulse modes. Itshall be possible to delay AC power failure reports, auto test call, and site program theDACT using a touch tone phone and password.

2.6 SIGNALING DEVICES

A. Horns:a. Provide 2-wire, 24Vdc horn(s) with audible output select for self-synchronizing

temporal (Code 3) tone (with use of synchronizing module) or continuous tone.The horn shall provide for three (3) selectable dBA levels for both types of tones.

b. Horns shall be Series AH by Wheelock Inc.

B. Strobes:a. Provide 24Vdc strobe(s) self-synchronized to flash at 1 fps across their full

operating voltage range. The strobe shall operate on any existing 2-wire signalcircuit. Strobes shall be 15 cd and have a minimum intensity of 75 cd (on axis) tomeet A.D.A.

b. Strobes shall be Series RSS (RSS-241575W-FR) by Wheelock Inc.

C. Combination Horn/Strobea. Provide 2-wire, 24Vdc combination horn/strobe.b. Horn shall have an audible output select for self-synchronizing temporal (Code 3)

tone (with use of synchronizing module) or continuous tone. The horn shallprovide for three (3) selectable dBA levels for both types of tones.

c. Strobes shall be 15 cd and have a minimum intensity of 75 cd (on axis) to meetA.D.A. Strobes shall be self-synchronized to flash at 1 fps.

d. Horn/Strobe shall be Series AS (AS-241575W-FR) by Wheelock Inc.

2.7 SMOKE DETECTORS

A. Multi-Sensor Technology Smoke Detectors: Provide addressable multi-sensor smokedetectors as follows:

1. Provide multi-sensor technology smoke detectors utilizing at a minimum, thephotoelectric light scattering principle for operation integrated with a thermaldetector monitoring rate of temperature rise and fixed temperature. Detectorsmay also use a third means of detection such as the ionization principle. Allmeans of detection shall be integrated and monitored by the fire alarm controlpanel for the fire signatures to which this detector was designed and tested.Detectors that simply have more than one means to detect fires that are notintegrated shall not be used. Smoke detectors shall be listed for use with the firealarm control panel.

2. Provide self-restoring type detectors that do not require any readjustment afteractuation to restore them to normal operation. Detectors shall be UL listed asSmoke-Automatic Fire Detectors.

3. All components shall be rust and corrosion resistant. Vibration shall have noeffect on the detector's operation. The detection chamber shall have a fine meshmetallic screen that prevents the entrance of insects or airborne materials. Thescreen shall not inhibit the movement of smoke particles into the chamber.

4. Provide twist lock bases for the detectors. The detectors shall maintain contactwith their bases without the use of springs. Provide companion-mounting base



with fixed wiring terminals. Terminate field wiring on the fixed terminals. Thedetector shall have a visual indicator to show actuation.

5. Detectors shall be equipped with screw terminals for each conductor.

6. The detector address shall identify the particular unit, its location within thesystem, and its sensitivity setting. Detectors shall be of the low voltage typerated for use on a 24 VDC system.

7. Provide detectors that are rated for the air velocity expected.

B. Duct Smoke Detectors: Provide multi-sensor technology smoke detectors as specifiedabove.

1. Provide detectors with approved duct housing, mounted to the exterior of theduct, and with perforated sampling tubes extending across the width of the ductin accordance with NFPA 90A. For required return air duct detectors that are tobe installed at the shaft openings where the return air enters the common returnair shaft/system, provide quantities and proper location and spacing of detectorsin compliance with NFPA 72 requirements.

2. Provide detectors that are rated for the air velocity expected.

3. Where the installed location of a duct detector is concealed or not easily located,provide a remote LED to indicate the operation and location of the detector.

2.8 HEAT DETECTORS

A. Addressable, self-restoring with rate compensated, fixed temperature sensing, fieldselectable with or without rate-of-rise temperature sensing.

B. Rate-of-rise temperature detection shall be selectable at 15F or 20F per minute. Fixedtemperature sensing shall be independent of rate-or-rise sensing and programmable tooperate at 135F or 155F.

2.9 MULTI-SENSOR DETECTORS

A. General: Provide addressable multi-technology detector that integrates the signals fromphoto-electric, ionization, and rate compensated temperature sensors into a “firesignature” as follows:

1. All means of detection shall be integrated and monitored by the fire alarm controlpanel for the fire signatures to which this detector was designed and tested.Detectors that simply have more than one means to detect fires that are notintegrated shall not be used. Multi-sensor detectors shall be listed for use with the firealarm control panel.

2. Provide detectors with screw terminals for each conductor. Provide detectorsdesigned for surface outlet box mounting and supported independently of wiringconnections.

3. Where provided in elevator machine rooms for interface with the earthquake recallfunction, provide detectors that have both a lower temperature rating and a highersensitivity (often characterized by a lower response time index (RTI)) as compared



to the sprinklers located in the elevator machine rooms. A lower RTI is intended toprovide detector response prior to sprinkler response.

4. Provide detectors with visual indicator to show that the detector has operated.

2.10 MANUAL PULL STATIONS

A. Provide metal semi-flush mounted, double action, addressable manual stations, whichare not subject to operation by jarring or vibration. Stations shall be equipped with screwterminals for each conductor. Stations that require the replacement of any portion of thedevice after activation are not permitted. Stations shall be finished in fire engine red withmolded raised lettering operating instructions of contrasting color. The use of a key orwrench shall be required to reset the station.

2.11 TAMPER SWITCHES

A. Provide tamper switches to replace each existing tamper switch or as required for newsystems for fire protection system control valves where indicated on the drawings.Tamper switches shall be UL listed as "Extinguishing System Attachment" for the locationand type of valve supervised. Each device shall have at least two sets of contacts so thattwo different systems may monitor the switch at any given time during renovations andreplacements. The device shall contain double pole, double throw contacts. Operation ofthe switch shall cause a supervisory signal to be transmitted to the FACP upon not morethan two complete turns of the valve wheel or a closure of ten percent, whichever is less.Tamper switches shall be equipped with screw terminals for each conductor.

2.12 WATERFLOW DETECTORS

A. Provide a vane type waterflow detector to replace each existing waterflow detector or asrequired for new systems. Each device shall have at least two sets of contacts so thattwo different systems may monitor the switch at any given time during renovations andreplacements. The device shall contain double pole, double throw contacts. Equip thedetector with a pneumatic time delay, field adjustable from zero to ninety seconds. Thetime delay shall be set initially to 30 seconds for zone/floor waterflow detectors and 45seconds for riser or main waterflow detectors. The device shall be a UL listedExtinguishing System Attachment rated for the particular pressure and location at which itis installed. Waterflow detectors shall be equipped with screw terminals for eachconductor.

2.13 ELECTROMAGNETIC DOOR HOLDERS

A. Where indicated on the drawings, provide magnetic fire door hold open devices. Theelectromagnetic holding devices shall be designed to operate on 120 VAC, and requirenot more than 3 watts of power to develop 1.72 bar of holding force. The initiation of anyfire alarm shall cause the release of the electromagnetic door holding device permittingthe door to be closed by the door closer. The device shall be UL listed based on UL 228tests.

B. Refer to architectural plans for door locations. Contractor shall coordinate door holderswith door hardware manufacturer/supplier

2.14 CONDUCTORS

A. All initiating circuit, signaling line circuit, AC power conductors, shield drain conductorsand grounding conductors, shall be solid copper, stranded or bunch tinned (bonded)



stranded copper.

B. All signaling line circuits, including all addressable initiating device circuits shall be 18AWG minimum multi-conductor jacketed twisted cable or twisted shielded or as permanufacturer's requirements.

C. All non-addressable initiating device circuits, 24 VDC auxiliary function circuits shall be18 AWG minimum or per manufacturer's requirements.

D. All notification appliance circuit conductors shall be solid copper or bunch tinned(bonded) stranded copper. Where stranded conductors are utilized, a maximum of 7strands shall be permitted for No. 16 and No. 18 conductors, and a maximum of 19strands shall be permitted for No. 14 and larger conductors.

E. All audible notification appliance circuits shall be 14 AWG minimum twisted pairs ortwisted pairs shielded or per manufacturer's requirements.

F. All visual notification appliance circuits shall be 14 AWG minimum THHN or twisted pairsor twisted shielded pairs or per manufacturer's requirements.

2.15 AUXILIARY POWER: If required, additional signaling device power shall be provided by a powerunit that is completely compatible with the main control panel and provides full supervision of thesignaling device.

3.0 EXECUTION

3.1 INSTALLATION

A. Coordinate as required with other trades to assure proper and adequate provision in thework of those trades for interface with the work of this Section.

B. Install the work of this Section in strict accordance with pertinent requirements ofgovernmental agencies having jurisdiction, and with the manufacturer’srecommendations as approved by the A/E.

C. Contractor shall provide auxiliary power supplies as required to operate Fire AlarmSystem.

D. The Contractor shall verify and take full responsibility for furnishing and installing thecorrect size and quantity of conductors and conduit necessary for the alarm system to beoperated as specified.

E. All circuits shall be rated power limited in accordance with NEC Article 760.

F. Device Mounting Heights (ADA Compliant)

Signaling Devices: 80-inches AFF unless noted otherwisePull Stations: 48-inches AFF where only front wheel chair access is available.

54-inches AFF where side wheel chair access is available.



3.2 OPEN CABLE

A. Power-limited cable in accordance with NEC 70, where used, not installed in UL listedmetal conduit or raceway shall be mechanically protected by building constructionfeatures.

B. Installation shall be in areas not subjected to mechanical injury.

C. All circuits shall be supported by the building structure. Cable shall be attached by strapsto the building structure at intervals not greater than 10 feet. Where wiring is installedabove drop ceilings, cable shall not be laid on ceiling tiles. Cable shall not be fastened ina manner that puts tension on the cable.

D. Cable type shall be FPLP, FPLR or FPL, or permitted substitutions, selected for theinstallation application as required by NEC 70, Section 760-61.

E. All cable that is not enclosed by conduit shall be supported and anchored with nylonstraps or clamps. The use of staples is prohibited.

3.3 CONDUIT RACEWAY

A. Fire alarm wire/conductors shall be installed in conduit.

B. All systems and system components listed to UL864 Control Units for Fire ProtectiveSignaling Systems maybe installed within a common conduit raceway system, inaccordance with the manufacture's recommendations. System(s) or system componentsnot listed to the UL864 standard shall utilize a separate conduit raceway system for eachof the sub-systems.

C. All system conduits shall be EMT, 3/4-inch minimum, except for flexible metallic conduitused for whips to devices only, maximum length 6 feet, 3/4-inch diameter, minimum.

D. All system conduits, which are installed in areas, which may be subject to physicaldamage or weather, shall be IMC or rigid steel, 3/4 -inch minimum.

E. Conduits shall be sized according to the conductors contained therein. Cross sectionalarea percentage fill for system conduits shall not exceed 40%.

F. All fire alarm conduit systems shall be routed and installed to minimize the potential forphysical, mechanical or by fire damage, and so as not to interfere with existing buildingsystems, facilities or equipment, and to facilitate service and minimize maintenance.

G. All conduits, except flexible conduit whips to devices, shall be solidly attached to buildingstructural members, ceiling slabs or permanent walls. Conduits shall not be attached toexisting conduit, duct work, cable trays, other ceiling equipment, drop ceilinghangers/grids or partition walls, except where necessary to connect to initiating,notification, or auxiliary function devices.

H. All system conduits, junction boxes, pull boxes, terminal cabinets, electrical enclosuresand device back boxes shall be readily accessible for inspection, testing, service andmaintenance.

3.2 TESTING

A. All intelligent analog addressable devices shall be tested for current address, sensitivity,



and user defined message.

B. All wiring shall be tested for continuity, shorts, and grounds before the system isactivated.

C. The system including all its sequence of operations shall be demonstrated to the Owner,his representative, and the local fire inspector. In the event the system does not operateproperly, the test shall be terminated. Corrections shall be made and the testingprocedure shall be repeated until it is acceptable to the Owner, his representatives andthe fire inspector.

D. At the final test and inspection, a factory trained representative of the systemmanufacturer shall demonstrate that the system functions properly in accordance withthese specifications. The representative shall provide technical supervision, andparticipate during all of the testing for the system.

E. All fire alarm testing shall be in accordance with National Fire Alarm Code, NFPA 72 -1999, Chapter 7.

F. A letter from the Contractor certifying that the system is installed entirely in accordancewith the system manufacturer's recommendations and within the limitations of therequired listings and approvals, that all system hardware and software has been visuallyinspected and functionally tested by a manufacturer's certified representative, and thatthe system is in proper working order.

August 6, 2021 Scenic Regional Library District 20-8460 Hermann Branch

WATER MAIN SUPPLY PIPING, VALVES AND FITTINGS 025100-1

SECTION 02510 - WATER MAIN SUPPLY PIPING, VALVES AND FITTINGS 1. MATERIALS OF CONSTRUCTION

Piping, valves, and fittings shall be furnished and installed in accordance with the manufacturer’s requirements. All pipe and materials shall be new and in a condition satisfactory to the Owner. Materials of construction for water supply pipes and fittings shall be as follows:

WATER MAIN

A. C900 PVC WATER MAINS (4-inch and larger). Water mains shall conform to AWWA C900 DR 14. Pipe must bear the seal of approval of the National Sanitation Foundation. Net laying lengths must be 20 feet. Joints shall be integral bell position joints with single rubber gasket, making a pressure tight seal, as listed in the C900 Standard.

B. CLASS 200 PVC WATER MAINS (Less than 4-inch). Water mains shall be PVC Class 200. Pipe shall conform to ASTM D2241 and shall be pressure rated at 200 psi at 73°F with a standard dimension ratio of SDR 21. PVC pipe must bear the seal of approval of the National Sanitation Foundation. Net laying lengths must be 20 feet. Joints shall be integral bell push-on joints with single rubber gasket, making a pressure tight seal. Said pipe shall be in accordance with ANSI/ASTM D2241-78 or the latest revision thereof.

C. FITTINGS. Mechanical joint and or flanged ductile iron fittings for PVC pipe shall be used and

shall meet the requirements of ANSI A21.11 (AWWA C111). Fittings shall include appropriate transition gaskets.

D. GATE VALVES. Valves for water lines shall be Mueller Model A-2360 mechanical joint, non-

rising stem, resilient wedge, gate valves or approved equal. Each valve shall include the required Mueller mechanical joint accessories. Said valves shall be of the size and joint type required in the approved plans. All valves shall be manufactured in accordance with AWWA Standards C-509.

E. VALVE BOXES. Valve boxes shall be Mueller Model H-10360 buffalo-type with lid as

manufactured by the Mueller Company or approved equal.

F. FIRE HYDRANTS. Fire hydrants shall comply with American Water Works Association specifications. Hydrants shall have: two-piece standpipe; compression type main valve; 5-1/4 inch valve opening; two 2 ½-inch hose nozzles and one 4 ½-inch pumper nozzle; mechanical joint inlet with cast iron retainer glands; 7/8 inch square operating nut to open counter clockwise. Cast iron fitting shall be cement mortar lined with bituminous seal coat inside and out. Inlet connection shall be 6 inch mechanical joint. Fire hydrants shall be Model A-423 as manufactured by the Mueller Company, or approved equal. Said hydrants shall be equipped with auxiliary gate valve and valve box and Mueller transition gland (A-339).

G. DETECTABLE LOCATOR TAPE. Detectable locator tape shall be 3 inches wide, bonded layer plastic with magnetic foil core, Terra Tape Detectable, as manufactured by Griffolyn Company of Houston, Texas, and shall have the words “Caution: Water Main Buried Below,” or approved equal.



H. WATERLINE LOCATOR WIRE. Waterline locator wire shall be #12 solid copper wire, insulated for 600 V, with splice points at valve boxes.

WATER SERVICE

A. SERVICE SADDLES. Service saddle for 2” service line shall Mueller Bronze H-13000 series for

6” water main taps, or approved equal, with tapped outlet as manufactured by the Mueller Company or approved equal.

B. CORPORATION STOPS. Corporation stops for 2” service connection shall be Mueller B-25008

or approved equal, “CC” Thread with compression connections. Other sizes to be approved by the Owner.

C. CURB VALVES. Curb valve for 2” service connection shall be Mueller H-15209 or an approved

equal, compression connections both ends. Other sizes to be approved by the Owner.

D. CURB BOX. Curb box for 2” service connection shall be Mueller H-10316 or an approved equal, 36” - 40” bury, other sizes to be approved by the owner.

E. SERVICE PIPING. Two (2) inch service piping shall be Type K copper tubing or HDPE CTS class

200 PE 3608 or PE 3710 SDR 9 ASTM D2737 or approved. PVC SDR 21 class 200 is acceptable for two (2) water services. All service piping shall have thirty-six (36) inches of minimum cover. 1. All non-metallic service piping must have #12 copper stranded or solid tracing wire continuous

with service piping, brought to surface at curb valve. 2. All service piping under roadways must be in schedule 40 PVC conduit, extended a minimum

of twelve (12) inches past the curb line. There shall be no service pipe joints under roadway.

Prior to backfilling, service lines must be inspected by the Owner.

F. Meters. Service meters shall be a Schlumberger T-10 five-eighths (⅝) inch to two (2) inches available from the City of Union. All meters must be proceeded immediately by a ball valve. Meter shall also be equipped with an ASSE approved dual check valve. Meters are to be installed horizontal and sizes larger than two (2) inches to be approved by the City of Union. When necessary to install meter in an outside pit, plans and specifications shall be submitted to the City of Union for approval

All pipe and materials described above shall be of new materials in a condition satisfactory to the Owner.

All pipe and fittings shall be unloaded, hauled, and handled with care to prevent injury to the pipe. Proper methods and equipment shall be used for safe handling. Should a defect, gouge, or crack be discovered in any pipe, the crack or defective portion shall be cut off before being installed so that the pipe will be perfectly sound. The cut shall be made in the sound barrel at a point at least 12 inches beyond the visible limit of the defect.

The interior of the pipe shall be thoroughly cleaned of all foreign matter and shall be kept clean during operations by means of plugs or other approved methods. At all times when work is not in progress, all open ends of pipes and fittings shall be securely closed. Tees and fittings at bends in pipe shall be properly braced with substantial concrete thrust blocks.



2. EXCAVATION OF TRENCHES

A. GENERAL. The Contractor shall control the grading in the vicinity of pipe trenches so that the surface of the ground will be properly sloped to prevent water from running into the excavated areas. Any water or other liquid wastes, which accumulate in the excavations, shall be removed promptly.

The Contractor shall perform all excavation work necessary for and incidental to the proper

construction of the water lines as shown on the approved plans or directed by the Owner. Excavation shall include the removal of trees, shrubs, and undesirable material. Excavation shall be done along the lines indicated on the Approved plans and shall be continuous and straight without improper bends and kinks. Trenches shall be only of sufficient width to provide a free working space on each side of the pipe. During excavation, material suitable for backfilling shall be stockpiled in an orderly manner a sufficient distance from the banks of the trenches to avoid overloading which might cause slides or cave-ins. All excavated material not suitable for backfill shall be removed by the Contractor and disposed of in a manner approved by the Owner. The Contractor shall provide all barricades, lights, temporary crossings, warning signs, etc. that may be necessary to properly protect the public and the work from injury or damage.

B. DEPTH. Trenches for water pipe shall be opened to a sufficient depth to obtain a minimum of 42

inches of cover over the top of the pipe. All excavation shall be made so as to provide a continuous bearing for the barrel of the pipe. Bell holes shall be excavated to sufficient size to permit ample room for making joints. The bottom of trenches shall be free from rocks, clods, debris and other unsuitable material and shall consist of properly shaped earth or tamped granular material as specified herein. The Contractor shall be careful not to excavate below grade except to remove undesirable material or as directed by the Owner.

C. WIDTH. No excavated trench shall be wider than 1-4/10 times the pipe diameter in inches plus 12

inches (width = 1.4d” + 12”) or two feet wide or as designated by the Owner. 3. PIPE LAYING

A. GENERAL. Laying of the pipe shall be commenced immediately after the excavation is started, and the Contractor must use every means at his command to keep pipe laying closely behind the trenching. The Owner may stop the trenching when, in his opinion, the trench is open too far in advance of the pipe laying operation. The Contractor may lay pipe in the best manner adapted to securing speed and good results. It shall, however, be in accordance with the manufacturer’s instructions and recommendations, and in a manner that will not damage the pipe.

B. THRUST BLOCKING. Lines shall be thrust blocked at bends, tees, caps, and hydrants to prevent

movement of lines under pressure. The concrete blocking shall be placed between solid ground and the fitting to be anchored in such a manner that the pipe and fitting joints will be accessible for repairs. Thrust blocks shall be constructed with the required bearing surface in accordance with the Construction Drawings:

C. LAYING. Damaged or unsound pipe or fittings will be rejected. Pipe shall be laid with bells facing in the direction of laying. Joints shall be made as specified above. Before joining the pipe, all lumps, blisters, excess coating material, and any grease or oil shall be removed from gaskets and the bell and spigot ends of the pipes.



D. PIPE BEDDING. Pipe shall be laid in a flat bottom trench with backfill material approved by the

Owner deposited into the trench uniformly at both sides of the pipeline for the full width of the trench, up to the horizontal diameter of the pipeline.

4. BACKFILLING FOR TRENCHES

A. GENERAL. When the pipe is laid, the Contractor shall backfill under and around the pipe until the pipe is covered with sufficient material to hold the pipe in position when firmly tamped. The remainder of the trench shall then be carefully backfilled simultaneously on both sides of the pipe. Broken concrete or pavement, blasted rock and large boulders shall not be used as backfill materials. Any trenches improperly backfilled, or where settlement occurs shall be repaired as directed by the Owner. The ground shall be graded to a reasonable uniformity and the required amount of mounding over the trenches left in a uniform and neat condition. Before final acceptance is made, the Contractor shall travel the line with the Owner and any settled places shall be repaired as directed by the Owner. It is the intent of these Specifications to secure a condition where no further settlement of trenches will occur after backfilling is completed.

B. BACKFILLING FOR TRENCHES IN UNPAVED AREAS. The entire backfill for trenches in

areas other than areas to be paved as indicated in the Approved plans shall be repaired as directed by the Owner. It is the intent of these Specifications to secure a condition where no further settlement of trenches will occur after backfilling is completed.

C. BACKFILL IN PAVED AREAS. In areas of existing or proposed pavement or rock surfaces, the

entire backfill shall consist of well-graded 1” minus crushed limestone. The backfill material shall be compacted by an acceptable method to insure that no settlement of the completed backfill will occur. All areas of existing pavement damaged during construction shall be repaved with three inches of Type C asphaltic pavement and installed in accordance with the latest edition of the Missouri Standard Specifications for Highway Construction. Edges of the existing pavement shall be neatly cut in a straight line, removing all damaged pavement, prior to repaving.

D. RESPONSIBILITY OF CONTRACTOR FOR BACKFILL SETTLEMENT. The Contractor shall

be responsible for the satisfactory compaction of backfill material described. If any trenches or other excavation are found to have settled, they shall be immediately reworked by the Contractor and restored to the specified grades. In addition, the Contractor shall be responsible for all damage or damages which might result from settlement of backfill made by him of the fulfillment of his contract within and during the period of one year from and after the date of final acceptance thereof by the Owner.

E. FINISH GRADING. The finishing of side slopes, cuts, and fills shall be reasonably smooth

uniform surfaces that will merge with the adjacent terrain without noticeable break.

F. PROTECTION OF EXISTING SEWERS, STRUCTURES, OR UTILITIES. Where new lines approach, cross, connect to, or run parallel to existing sewer, structures, or other utilities, the Contractor shall be held completely responsible for protecting, preserving, and otherwise maintaining existing improvements during construction of the new lines. Any damage inflicted must be promptly repaired to the satisfaction of the Owner. Costs involved for any and all repairs shall be at the Contractor’s expense.



G. TESTING WATERLINES. All newly laid lines shall be tested before being placed in service. Trenches may be backfilled as the pipe is laid; or where practicable, trenches or bell holes may be left open for visual inspection during tests. Prior to making tests, all air shall be expelled from the pipe. If hydrants or blow-offs are not available at high points of the lines, suitable taps shall be provided at such points.

A two (2) hour hydrostatic test shall be made on the pipeline between valves or temporary lugs at a test pressure of at least 50 percent (50%) in excess or normal operating pressure. Any open trench or bell holes may over dry joints may be backfilled following this test. Where trenches have been backfilled prior to making the test, any leaks evident at the surface shall be remade and retested. All pipes, fittings, valves, hydrants, and other materials found defective under this test shall be removed and replaced. Allowance pressure drop during the two (2) hour test shall be limited to 3% of the test pressure. After hydrostatic tests have been satisfactorily completed, a two (2) hour leakage test shall be made on the pipeline valves or temporary plugs at a constant test pressure of 75 pounds per square inch. Leakage in the test system shall be measured through a meter or approved measuring device. The allowable leakage shall not be greater than 10 gallons per 24-hour day per mile of pipe per inch nominal diameter of pipe. Should tests disclose leakage greater than the allowable amount, locate and repair defective joint(s) until the leakage is within the specified allowance.

5. WATER MAINS NEAR SEWERS

A. HORIZONTAL SEPARATION. Water mains shall be laid at least ten feet (edge to edge) horizontally from any sanitary sewer or sanitary manhole. When local conditions prevent a lateral separation of ten (10) feet, the Missouri Department of Natural resources may allow deviation on a case-by-case basis, provided the data from the design engineer supports the deviation. Such deviation may allow installation of the water main closer than ten (10) feet to a sanitary or storm sewer, provided that the water main is laid in a separate trench, or on an undisturbed earth self located on one side of the sewer at such an elevation that the bottom of the water main is at least 18 inches above the top of the sewer. When it is impossible to obtain proper horizontal and vertical separation as stipulated above, either the water main or sewer must be constructed of mechanical joint pipe or encased in a continuous casing.

B. VERTICAL SEPARATION. Whenever water main must cross sanitary sewers, sewer laterals, or

storm drains, the water main shall be laid to provide a minimum vertical clear distance of 18 inches between the outside of the water main and the outside of the sewer. This shall be the case where the water main is either above or below the sewer. At crossings, the full length of water pipe shall be located so both joints will be as far from the sewer as possible but in no case less than ten (10) feet. Special structural support for the water and sewer pipes may be required. In areas where the recommended separations cannot be obtained either the waterline or the sewer line shall be constructed of mechanical joint pipe or cased in a continuous casing that extends no less than ten (10) feet on both sides of the crossing.

C. UNUSUAL CONDITIONS. Where conditions prevent the minimum vertical separation set forth

above from being maintained, a variance must be submitted to the Missouri Department of Natural Resources for approval.

6. DISINFECTING WATER LINES



A. GENERAL. The interior of all pipe, fittings, and other accessories shall be kept free as possible

from dirt and foreign matter at all times.

Every precaution shall be used to protect the pipe against the entrance of foreign material before the pipe is placed in the new line. At the close of the day’s work or whenever the workmen are absent from the job, the end of the last laid section of pipe shall be plugged, capped or otherwise tightly closed to prevent the entry of foreign material of any nature. If the pipe laying crew cannot put the pipe into the trench and in place without getting earth into it, the Owner may require that before lowering the pipe into the trench, a heavy, tightly-woven canvas bag of suitable size shall be placed over each end, and left there until the connection is to be made to the adjacent pipe.

At times when pipe laying is not in progress, the open ends of pipe shall be closed by a watertight plug or other means approved by the Owner. Joints of pipe in the trench shall be made before the work is stopped. This provision shall apply during the noon hour as well as overnight.

B. FLUSHING AND DISINFECTING COMPLETED PIPELINES. The following method, or a

method preferred by the owner of the water system, shall be utilized. Disinfecting of the completed line shall be done in a manner approved and recommended by the Missouri Division of Health, and in accordance with the latest edition of the AWWA Standards.

Prior to chlorination, the main shall be flushed as thoroughly as possible with the water pressure and outlets available. Flushing shall be done after the pressure tests are made. It must be understood that such flushing removes only the lighter solids and cannot be relied upon to remove heavy material allowed to get into the main during laying.

Unless extreme care and thorough inspection is practiced during the laying of water mains, small stones, pieces of concrete, particles of metal, or other foreign material may gain access to mains newly laid. If it is believed that such foreign material may be in the main, it shall be thoroughly flushed and valves carefully inspected after flushing to see that the entire valve operating mechanism is in good condition.

Subsequent to flushing, the following procedure shall be followed in disinfecting the water mains.

1. Close off section of distribution system that is to be disinfected.

2. Prepare 1% chlorine solution as shown in the following table:

Product

Amount of Compound Quantity of Water to Add to

Make 1% Solution

High Test Calcium Hypo-Chlorite (65-70% Chlorine, HTH

Parachloron, etc.)

1 lb.

7.5 gal.

Chlorinated Lime (32-35% Chlorine)

2 lbs.

7.5 gal.

Liquid Laundry Bleach (Purex or Clorox)

1 gal.

4.25 gal.



3. The amount of chlorine required per 100 foot length of various pipe sizes is as shown in the

following table:

Pipe Size Volume of 100 ft.

Length Amount Required to Give

25 ppm Chlorine (in) (gal) 100% Chlorine (lb) 1% Chlorine/Water (gal)

2 16.4 0.0034 1/24

4 65.3 0.0135 1/6

6 146.5 0.0305 3/8

8 261.0 0.054 2/3

10 408.0 0.085 1

12 588.7 0.123 1½

4. Introduce the chlorine solution with a positive displacement type pump at the same point where the water will be introduced into the section to be disinfected.

5. Fill the pipe slowly and be sure not to trap any air in the pipe. Close the section off that is to be

disinfected when the pipe is full and under slight pressure. The solution should be allowed to remain in the pipe for 24 hours.

NOTE: The detention time may be cut to three hours, provided a 100 ppm chlorine solution is used in place of the 25 ppm chlorine solution.

6. All valves or other appurtenances in the line being disinfected should be operated while the

system is being filled with the chlorine solution.

Following disinfection, all treated water shall be thoroughly flushed from the newly laid pipeline at its extremities until the replacement water throughout its length shall, upon test, be proved comparable to the quality of water approved by the Public Health authority having jurisdiction. The contractor or his representative shall arrange for any bacteriological testing of water samples that may be required. Collect and submit two (2) separate standard bacteriological samples, taken a minimum of 24 hours apart, for analysis to a State of Missouri certified laboratory. This quality of water delivered by the new main should continue for a period of at least two full days, as demonstrated by laboratory examination of samples taken from a tap located and installed in such a way as to prevent outside contamination. Samples should never be taken from an unsterilized hose or from a hydrant, because such samples seldom meet current bacteriological standards.

Should the initial treatment fail to result in the condition specified in the preceding paragraph, the disinfection procedure shall be repeated until such results are obtained.

7. CLEANING OF THE GROUNDS



During the progress of the work, the Contractor shall remove and properly dispose of all debris and waste material. Upon completion and acceptance of the work, remove from the property of the Owner all equipment and facilities and unused materials provided by him in connection with the work and leave the grounds in a clean and orderly condition.

8. RESTORATION OF DISTURBED AREA

Any and all areas that are disturbed as a result of construction shall be restored to an “as good or better” condition as existed prior to being disturbed.

END OF SECTION 025100


EARTH MOVING 312000 - 1

SECTION 312000 - EARTH MOVING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Preparing subgrades for slabs-on-grade walks pavements turf and grasses and plants. 2. Excavating and backfilling for buildings and structures. 3. Drainage course for concrete slabs-on-grade. 4. Subbase course for concrete walks pavements. 5. Subbase course and base course for asphalt paving. 6. Subsurface drainage backfill for walls and trenches. 7. Excavating and backfilling trenches for utilities and pits for buried utility structures.

8. Section 013200 "Construction Progress Documentation" Section 013233 "Photographic Documentation" for recording preexcavation and earth moving progress.

9. Section 015000 "Temporary Facilities and Controls" for temporary controls, utilities, and support facilities; also for temporary site fencing if not in another Section.

10. Section 033000 "Cast-in-Place Concrete" for granular course if placed over vapor retarder and beneath the slab-on-grade.

11. Section 311000 "Site Clearing" for site stripping, grubbing, stripping and stockpiling topsoil, and removal of above- and below-grade improvements and utilities.

12. Section 312319 "Dewatering" for lowering and disposing of ground water during construction.

13. Section 315000 "Excavation Support and Protection" for shoring, bracing, and sheet piling of excavations.

14. Section 316329 "Drilled Concrete Piers and Shafts" for excavation of shafts and disposal of surplus excavated material.

15. Section 329200 "Turf and Grasses" for finish grading in turf and grass areas, including preparing and placing planting soil for turf areas.

16. Section 329300 "Plants" for finish grading in planting areas and tree and shrub pit excavation and planting.

17. Section 334600 "Subdrainage" for drainage of foundations slabs-on-grade walls and landscaped areas.

1.3 UNIT PRICES

A. All excavation shall be considered unclassified for this project.



1.4 DEFINITIONS

A. Backfill: Soil material or controlled low-strength material used to fill an excavation.

1. Initial Backfill: Backfill placed beside and over pipe in a trench, including haunches to support sides of pipe.

2. Final Backfill: Backfill placed over initial backfill to fill a trench.

B. Base Course: Aggregate layer placed between the subbase course and hot-mix asphalt paving.

C. Bedding Course: Aggregate layer placed over the excavated subgrade in a trench before laying pipe.

D. Borrow Soil: Satisfactory soil imported from off-site for use as fill or backfill.

E. Drainage Course: Aggregate layer supporting the slab-on-grade that also minimizes upward capillary flow of pore water.

F. Excavation: Removal of material encountered above subgrade elevations and to lines and dimensions indicated.

G. Fill: Soil materials used to raise existing grades.

H. Rock: Rock material in beds, ledges, unstratified masses, conglomerate deposits, and boulders of rock material that exceed 1 cu. yd. for bulk excavation or 3/4 cu. yd. for footing, trench, and pit excavation that cannot be removed by rock excavating equipment equivalent to the following in size and performance ratings, without systematic drilling, ram hammering, ripping, or blasting, when permitted:

1. Excavation of Footings, Trenches, and Pits: Late-model, track-mounted hydraulic excavator; equipped with a 42-inch- wide, maximum, short-tip-radius rock bucket; rated at not less than 138-hp flywheel power with bucket-curling force of not less than 28,700 lbf and stick-crowd force of not less than 18,400 lbf with extra-long reach boom; measured according to SAE J-1179.

2. Bulk Excavation: Late-model, track-mounted loader; rated at not less than 230-hp flywheel power and developing a minimum of 47,992-lbf breakout force with a general-purpose bare bucket; measured according to SAE J-732.

I. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, curbs, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface.

J. Subbase Course: Aggregate layer placed between the subgrade and base course for hot-mix asphalt pavement, or aggregate layer placed between the subgrade and a cement concrete pavement or a cement concrete or hot-mix asphalt walk.

K. Subgrade: Uppermost surface of an excavation or the top surface of a fill or backfill immediately below subbase, drainage fill, drainage course, or topsoil materials.

L. Utilities: On-site underground pipes, conduits, ducts, and cables, as well as underground services within buildings.



1.5 ACTION SUBMITTALS

A. Product Data: For each type of the following manufactured products required:

1. Geotextiles. 2. Controlled low-strength material, including design mixture. 3. Geofoam. 4. Warning tapes.

B. Samples for Verification: For the following products, in sizes indicated below:

1. Geotextile: 12 by 12 inches 2. Warning Tape: 12 inches long; of each color.

1.6 INFORMATIONAL SUBMITTALS

A. Qualification Data: For qualified testing agency.

B. Material Test Reports: For each on-site and borrow soil material proposed for fill and backfill as follows:

1. Classification according to ASTM D 2487. 2. Laboratory compaction curve according to ASTM D 698.

C. Blasting plan approved by authorities having jurisdiction.

D. Seismic survey report from seismic survey agency.

E. Preexcavation Photographs or Videotape: Show existing conditions of adjoining construction and site improvements, including finish surfaces, that might be misconstrued as damage caused by earth moving operations. Submit before earth moving begins.


A. Blasting: Comply with applicable requirements in NFPA 495, "Explosive Materials Code," and prepare a blasting plan reporting the following:

1. Types of explosive and sizes of charge to be used in each area of rock removal, types of blasting mats, sequence of blasting operations, and procedures that will prevent damage to site improvements and structures on Project site and adjacent properties.

2. Seismographic monitoring during blasting operations.

B. Seismic Survey Agency: An independent testing agency, acceptable to authorities having jurisdiction, experienced in seismic surveys and blasting procedures to perform the following services:

1. Report types of explosive and sizes of charge to be used in each area of rock removal, types of blasting mats, sequence of blasting operations, and procedures that will prevent damage to site improvements and structures on Project site and adjacent properties.



2. Seismographic monitoring during blasting operations.

C. Geotechnical Testing Agency Qualifications: Qualified according to ASTM E 329 and ASTM D 3740 for testing indicated.

D. Preexcavation Conference: Conduct conference at Project site.


A. Traffic: Minimize interference with adjoining roads, streets, walks, and other adjacent occupied or used facilities during earth moving operations.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction.

2. Provide alternate routes around closed or obstructed traffic ways if required by Owner or authorities having jurisdiction.

B. Improvements on Adjoining Property: Authority for performing earth moving indicated on property adjoining Owner's property will be obtained by Owner before award of Contract.

1. Do not proceed with work on adjoining property until directed by Engineer.

C. Utility Locator Service: Notify utility locator service for area where Project is located before beginning earth moving operations.

D. Do not commence earth moving operations until temporary erosion- and sedimentation-control measures, specified in Section 015000 "Temporary Facilities and Controls," Section 311000 "Site Clearing," are in place.

E. Do not commence earth moving operations until plant-protection measures specified in Section 015639 "Temporary Tree and Plant Protection" are in place.

F. The following practices are prohibited within protection zones:

1. Storage of construction materials, debris, or excavated material. 2. Parking vehicles or equipment. 3. Foot traffic. 4. Erection of sheds or structures. 5. Impoundment of water. 6. Excavation or other digging unless otherwise indicated. 7. Attachment of signs to or wrapping materials around trees or plants unless otherwise

indicated.

G. Do not direct vehicle or equipment exhaust towards protection zones.

H. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones.



PART 2 - PRODUCTS

2.1 SOIL MATERIALS

A. General: Provide borrow soil materials when sufficient satisfactory soil materials are not available from excavations.

B. Satisfactory Soils: Soil Classification Groups CL, ML, CL-ML, SP, SW, and GW according to ASTM D 2487, or a combination of these groups; free of rock or gravel larger than 3 inches in any dimension, debris, waste, frozen materials, vegetation, and other deleterious matter.

1. Liquid Limit: 45% 2. Plasticity Index: 20%

C. Unsatisfactory Soils: Soil Classification Groups GC, SC, CL, ML, OL, CH, MH, OH, and PT according to ASTM D 2487 or a combination of these groups.

1. Unsatisfactory soils also include satisfactory soils not maintained within 2 percent of optimum moisture content at time of compaction.

D. Subbase Material: See Civil Plans and DOT Specifications.

E. Base Course: See Civil Plans and DOT Specfications.

F. Engineered Fill: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940. All engineered fill to be approved by the engineer.

G. Bedding Course: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, and natural or crushed sand; ASTM D 2940; except with 100 percent passing a 1-inch sieve and not more than 8 percent passing a No. 200 sieve.

H. Drainage Course: Narrowly graded mixture of washed crushed stone, or crushed or uncrushed gravel; ASTM D 448; coarse-aggregate grading Size 57; with 100 percent passing a 1-1/2-inch sieve and 0 to 5 percent passing a No.8 sieve.

I. Filter Material: Narrowly graded mixture of natural or crushed gravel, or crushed stone and natural sand; ASTM D 448; coarse-aggregate grading Size 67; with 100 percent passing a 1-inch sieve and 0 to 5 percent passing a No. 4 sieve.

J. Sand: ASTM C 33; fine aggregate.

K. Impervious Fill: Clayey gravel and sand mixture capable of compacting to a dense state.

2.2 GEOTEXTILES

A. Subsurface Drainage Geotextile: Nonwoven needle-punched geotextile, manufactured for subsurface drainage applications, made from polyolefins or polyesters; with elongation greater



than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced:

1. Survivability: Class 2; AASHTO M 288. 2. Grab Tensile Strength: 157 lbf; ASTM D 4632. 3. Sewn Seam Strength: 142 lbf; ASTM D 4632. 4. Tear Strength: 56 lbf; ASTM D 4533. 5. Puncture Strength: 56 lbf; ASTM D 4833. 6. Permittivity: 0.5 per second, minimum; ASTM D 4491. 7. UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355.

B. Separation Geotextile: Woven geotextile fabric, manufactured for separation applications, made from polyolefins or polyesters; with elongation less than 50 percent; complying with AASHTO M 288 and the following, measured per test methods referenced:

1. Survivability: Class 2; AASHTOM 288. 2. Grab Tensile Strength: 247 lbf; ASTM D 4632. 3. Sewn Seam Strength: 222 lbf; ASTM D 4632. 4. Tear Strength: 90 lbf; ASTM D 4533. 5. Puncture Strength: 90 lbf; ASTM D 4833. 6. Permittivity: 0.02 per second, minimum; ASTM D 4491. 7. UV Stability: 50 percent after 500 hours' exposure; ASTM D 4355.

2.3 CONTROLLED LOW-STRENGTH MATERIAL

A. Controlled Low-Strength Material: Self-compacting, flowable concrete material produced from the following:

1. Portland Cement: ASTM C 150, Type I,II, or III. 2. Fly Ash: ASTM C 618, Class C or F. 3. Normal-Weight Aggregate: ASTM C 33, 3/4-inch nominal maximum aggregate size. 4. Foaming Agent: ASTM C 869. 5. Water: ASTM C 94/C 94M. 6. Air-Entraining Admixture: ASTM C 260.

B. Produce conventional-weight, controlled low-strength material with 80-psi compressive strength when tested according to ASTM C 495.

2.4 GEOFOAM

A. NOT USED

2.5 ACCESSORIES

A. Detectable Warning Tape: Acid- and alkali-resistant, polyethylene film warning tape manufactured for marking and identifying underground utilities, a minimum of as shown on the plans and 4 mils thick, continuously inscribed with a description of the utility, with metallic



core encased in a protective jacket for corrosion protection, detectable by metal detector when tape is buried up to 30 inches deep; colored as follows:

1. Red: Electric. 2. Yellow: Gas, oil, steam, and dangerous materials. 3. Orange: Telephone and other communications. 4. Blue: Water systems. 5. Green: Sewer systems.

PART 3 - EXECUTION

3.1 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earth moving operations.

B. Protect and maintain erosion and sedimentation controls during earth moving operations.

C. Protect subgrades and foundation soils from freezing temperatures and frost. Remove temporary protection before placing subsequent materials.

3.2 DEWATERING

A. Prevent surface water and ground water from entering excavations, from ponding on prepared subgrades, and from flooding Project site and surrounding area.

B. Protect subgrades from softening, undermining, washout, and damage by rain or water accumulation.

1. Reroute surface water runoff away from excavated areas. Do not allow water to accumulate in excavations. Do not use excavated trenches as temporary drainage ditches.

3.3 EXPLOSIVES

A. Explosives: Do not use explosives.

B. Explosives: Obtain written permission from authorities having jurisdiction before bringing explosives to Project site or using explosives on Project site.

1. Perform blasting without damaging adjacent structures, property, or site improvements. 2. Perform blasting without weakening the bearing capacity of rock subgrade and with the

least-practicable disturbance to rock to remain.



3.4 EXCAVATION, GENERAL

A. Unclassified Excavation: Excavate to subgrade elevations regardless of the character of surface and subsurface conditions encountered. Unclassified excavated materials may include rock, soil materials, and obstructions. No changes in the Contract Sum or the Contract Time will be authorized for rock excavation or removal of obstructions.

1. If excavated materials intended for fill and backfill include unsatisfactory soil materials and rock, replace with satisfactory soil materials.

2. Remove rock to lines and grades indicated to permit installation of permanent construction without exceeding the following dimensions:

3.5 EXCAVATION FOR STRUCTURES

A. Excavate to indicated elevations and dimensions within a tolerance of plus or minus 1 inch. If applicable, extend excavations a sufficient distance from structures for placing and removing concrete formwork, for installing services and other construction, and for inspections.

1. Excavations for Footings and Foundations: Do not disturb bottom of excavation. Excavate by hand to final grade just before placing concrete reinforcement. Trim bottoms to required lines and grades to leave solid base to receive other work.

2. Pile Foundations: Stop excavations 6 to 12 inches above bottom of pile cap before piles are placed. After piles have been driven, remove loose and displaced material. Excavate to final grade, leaving solid base to receive concrete pile caps.

3. Excavation for Underground Tanks, Basins, and Mechanical or Electrical Utility Structures: Excavate to elevations and dimensions indicated within a tolerance of plus or minus 1 inch. Do not disturb bottom of excavations intended as bearing surfaces.

B. Excavations at Edges of Tree- and Plant-Protection Zones:

1. Excavate by hand to indicated lines, cross sections, elevations, and subgrades. Use narrow-tine spading forks to comb soil and expose roots. Do not break, tear, or chop exposed roots. Do not use mechanical equipment that rips, tears, or pulls roots.

2. Cut and protect roots according to requirements in Section 015639 Temporary Tree and Plant Protection."

3.6 EXCAVATION FOR WALKS AND PAVEMENTS

A. Excavate surfaces under walks and pavements to indicated lines, cross sections, elevations, and subgrades.

3.7 EXCAVATION FOR UTILITY TRENCHES

A. Excavate trenches to indicated gradients, lines, depths, and elevations.

1. Beyond building perimeter, excavate trenches to allow installation of top of pipe below frost line.



B. Excavate trenches to uniform widths to provide the following clearance on each side of pipe or conduit. Excavate trench walls vertically from trench bottom to 12 inches higher than top of pipe or conduit unless otherwise indicated.

1. Clearance: 12 inches each side of pipe or conduit or as shown on the drawings.

C. Trench Bottoms: Excavate and shape trench bottoms to provide uniform bearing and support of pipes and conduit. Shape subgrade to provide continuous support for bells, joints, and barrels of pipes and for joints, fittings, and bodies of conduits. Remove projecting stones and sharp objects along trench subgrade.

1. For pipes and conduit less than 6 inches in nominal diameter, hand-excavate trench bottoms and support pipe and conduit on an undisturbed subgrade.

2. For pipes and conduit 6 inches or larger in nominal diameter, shape bottom of trench to support bottom 90 degrees of pipe or conduit circumference. Fill depressions with tamped sand backfill.

3. For flat-bottomed, multiple-duct conduit units, hand-excavate trench bottoms and support conduit on an undisturbed subgrade.

4. Excavate trenches 6 inches deeper than elevation required in rock or other unyielding bearing material to allow for bedding course.

D. Trenches in Tree- and Plant-Protection Zones:

1. Hand-excavate to indicated lines, cross sections, elevations, and subgrades. Use narrow-tine spading forks to comb soil and expose roots. Do not break, tear, or chop exposed roots. Do not use mechanical equipment that rips, tears, or pulls roots.

2. Do not cut main lateral roots or taproots; cut only smaller roots that interfere with installation of utilities.

3. Cut and protect roots according to requirements in Section 015639 "Temporary Tree and Plant Protection."

3.8 SUBGRADE INSPECTION

A. Notify Engineer when excavations have reached required subgrade.

B. If Engineer determines that unsatisfactory soil is present, continue excavation and replace with compacted backfill or fill material as directed.

C. Proof-roll subgrade below the building slabs and pavements with a pneumatic-tired and loaded 10-wheel, tandem-axle dump truck weighing not less than 400 psi to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.

1. Completely proof-roll subgrade in one direction ,repeating proof-rolling in direction perpendicular to first direction. Limit vehicle speed to 3 mph.

2. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Engineer, and replace with compacted backfill or fill as directed.

D. Additional excavation and replacement material will not be paid above the contract amount.



E. Reconstruct subgrades damaged by freezing temperatures, frost, rain, accumulated water, or construction activities, as directed by Engineer, without additional compensation.

3.9 UNAUTHORIZED EXCAVATION

A. Fill unauthorized excavation under foundations or wall footings by extending bottom elevation of concrete foundation or footing to excavation bottom, without altering top elevation. Lean concrete fill, with 28-day compressive strength of 2500 psi, may be used when approved by Engineer.

1. Fill unauthorized excavations under other construction, pipe, or conduit as directed by Engineer.

3.10 STORAGE OF SOIL MATERIALS

A. Stockpile borrow soil materials and excavated satisfactory soil materials without intermixing. Place, grade, and shape stockpiles to drain surface water. Cover to prevent windblown dust.

1. Stockpile soil materials away from edge of excavations. Do not store within drip line of remaining trees.

3.11 BACKFILL

A. Place and compact backfill in excavations promptly, but not before completing the following:

1. Construction below finish grade including, where applicable, subdrainage, dampproofing, waterproofing, and perimeter insulation.

2. Surveying locations of underground utilities for Record Documents. 3. Testing and inspecting underground utilities. 4. Removing concrete formwork. 5. Removing trash and debris. 6. Removing temporary shoring and bracing, and sheeting. 7. Installing permanent or temporary horizontal bracing on horizontally supported walls.

B. Place backfill on subgrades free of mud, frost, snow, or ice.

3.12 UTILITY TRENCH BACKFILL

A. Place backfill on subgrades free of mud, frost, snow, or ice.

B. Place and compact bedding course on trench bottoms and where indicated. Shape bedding course to provide continuous support for bells, joints, and barrels of pipes and for joints, fittings, and bodies of conduits.

C. Trenches under Footings: Backfill trenches excavated under footings and within 18 inches of bottom of footings with with concrete to elevation of bottom of footings. Concrete is specified in Section 033000 "Cast-in-Place Concrete"



D. Trenches under Roadways and Pavements: See Civil Plans for trench backfill information. All back fill shall compacted to the compaction requirements of the road.

E. Backfill voids with satisfactory soil while removing shoring and bracing.

F. Place and compact initial backfill of subbase material, free of particles larger than 1 inch in any dimension, to a height of 12 inches over the pipe or conduit.

1. Carefully compact initial backfill under pipe haunches and compact evenly up on both sides and along the full length of piping or conduit to avoid damage or displacement of piping or conduit. Coordinate backfilling with utilities testing.

G. Place and compact final backfill of satisfactory soil to final subgrade elevation.

H. Install warning tape directly above utilities, 12 inches below finished grade, except 6 inches below subgrade under pavements and slabs.

3.13 SOIL FILL

A. Plow, scarify, bench, or break up sloped surfaces steeper than 1 vertical to 4 horizontal so fill material will bond with existing material.

B. Place and compact fill material in layers to required elevations as follows:

1. Under grass and planted areas, use satisfactory soil material. 2. Under walks and pavements, use satisfactory soil material. 3. Under steps and ramps, use engineered fill. 4. Under building slabs, use engineered fill. 5. Under footings and foundations, use engineered fill.

C. Place soil fill on subgrades free of mud, frost, snow, or ice.

3.14 GEOFOAM FILL

A. Not Used

3.15 SOIL MOISTURE CONTROL

A. Uniformly moisten or aerate subgrade and each subsequent fill or backfill soil layer before compaction to within 2 percent of optimum moisture content.

1. Do not place backfill or fill soil material on surfaces that are muddy, frozen, or contain frost or ice.

2. Remove and replace, or scarify and air dry, otherwise satisfactory soil material that exceeds optimum moisture content by 2 percent and is too wet to compact to specified dry unit weight.



3.16 COMPACTION OF SOIL BACKFILLS AND FILLS

A. Place backfill and fill soil materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment.

B. Place backfill and fill soil materials evenly on all sides of structures to required elevations, and uniformly along the full length of each structure.

C. Compact soil materials to not less than the following percentages of maximum dry unit weight according to ASTM D 698.

1. Under structures, building slabs, steps, and pavements, scarify and recompact top 12 inches of existing subgrade and each layer of backfill or fill soil material at 95 percent.

2. Under walkways, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill soil material at 95 percent.

3. Under turf or unpaved areas, scarify and recompact top 6 inches below subgrade and compact each layer of backfill or fill soil material at 85 percent.

4. For utility trenches, compact each layer of initial and final backfill soil material at 85 percent or compaction requirements of the above paved surface.

3.17 GRADING

A. General: Uniformly grade areas to a smooth surface, free of irregular surface changes. Comply with compaction requirements and grade to cross sections, lines, and elevations indicated.

1. Provide a smooth transition between adjacent existing grades and new grades. 2. Cut out soft spots, fill low spots, and trim high spots to comply with required surface

tolerances.

B. Site Rough Grading: Slope grades to direct water away from buildings and to prevent ponding. Finish subgrades to required elevations within the following tolerances:

1. Turf or Unpaved Areas: Plus or minus 1 inch. 2. Walks: Plus or minus 1/2 inch. 3. Pavements: Plus or minus 1/2 inch (13 mm).

C. Grading inside Building Lines: Finish subgrade to a tolerance of 1/2 inch when tested with a 10-foot straightedge.

3.18 SUBSURFACE DRAINAGE

A. Subdrainage Pipe: Specified in Section 334600 "Subdrainage."

B. Subsurface Drain: Place subsurface drainage geotextile around perimeter of subdrainage trench. Place a 6-inch course of filter material on subsurface drainage geotextile to support subdrainage pipe. Encase subdrainage pipe in a minimum of 12 inches of filter material, placed in compacted layers 6 inches thick, and wrap in subsurface drainage geotextile, overlapping sides and ends at least 6 inches.



1. Compact each filter material layer with a minimum of two passes of a plate-type vibratory compactor.

C. Drainage Backfill: Place and compact filter material over subsurface drain, in width indicated, to within 12 inches of final subgrade, in compacted layers 6 inches thick. Overlay drainage backfill with one layer of subsurface drainage geotextile, overlapping sides and ends at least 6 inches.

1. Compact each filter material layer with a minimum of two passes of a plate-type vibratory compactor.

2. Place and compact impervious fill over drainage backfill in 6-inch thick compacted layers to final subgrade.

3.19 SUBBASE AND BASE COURSES UNDER PAVEMENTS AND WALKS

A. Place subbase course and base course on subgrades free of mud, frost, snow, or ice.

B. On prepared subgrade, place subbase course and base course under pavements and walks as follows: 1. Place base course material over subbase course under hot-mix asphalt pavement. 2. Shape subbase course and base course to required crown elevations and cross-slope

grades. 3. Place subbase course and base course 6 inches or less in compacted thickness in a single

layer. 4. Place subbase course and base course that exceeds 6 inches in compacted thickness in

layers of equal thickness, with no compacted layer more than 6 inches thick or less than 3 inches thick.

5. Compact subbase course and base course at optimum moisture content to required grades, lines, cross sections, and thickness to not less than 95 percent of maximum dry unit weight according to ASTM D 698.

3.20 DRAINAGE COURSE UNDER CONCRETE SLABS-ON-GRADE

A. Place drainage course on subgrades free of mud, frost, snow, or ice.

B. On prepared subgrade, place and compact drainage course under cast-in-place concrete slabs-on-grade as follows:

1. Install subdrainage geotextile on prepared subgrade according to manufacturer's written instructions, overlapping sides and ends.

2. Place drainage course 6 inches or less in compacted thickness in a single layer. 3. Place drainage course that exceeds 6 inches in compacted thickness in layers of equal

thickness, with no compacted layer more than 6 inches thick or less than 3 inches thick. 4. Compact each layer of drainage course to required cross sections and thicknesses to not

less than 95 percent of maximum dry unit weight according to ASTM D 698.




A. Special Inspections: Owner will engage a qualified special inspector to perform the following special inspections:

1. Determine prior to placement of fill that site has been prepared in compliance with requirements.

2. Determine that fill material and maximum lift thickness comply with requirements. 3. Determine, at the required frequency, that in-place density of compacted fill complies

with requirements.

B. Testing Agency: Owner will engage a qualified geotechnical engineering testing agency to perform tests and inspections.

C. Allow testing agency to inspect and test subgrades and each fill or backfill layer. Proceed with subsequent earth moving only after test results for previously completed work comply with requirements.

D. Footing Subgrade: At footing subgrades, at least one test of each soil stratum will be performed to verify design bearing capacities. Subsequent verification and approval of other footing subgrades may be based on a visual comparison of subgrade with tested subgrade when approved by Engineer.

E. Testing agency will test compaction of soils in place according to ASTM D 1556, ASTM D 2167, ASTM D 2922, and ASTM D 2937, as applicable. Tests will be performed at the following locations and frequencies:

1. Paved and Building Slab Areas: At subgrade and at each compacted fill and backfill layer, at least one test for every 2000 sq. ft. or less of paved area or building slab, but in no case fewer than three tests.

2. Foundation Wall Backfill: At each compacted backfill layer, at least one test for every 100 feet or less of wall length, but no fewer than two tests.

3. Trench Backfill: At each compacted initial and final backfill layer, at least one test for every 150 feet or less of trench length, but no fewer than two tests.

F. When testing agency reports that subgrades, fills, or backfills have not achieved degree of compaction specified, scarify and moisten or aerate, or remove and replace soil materials to depth required; recompact and retest until specified compaction is obtained.

3.22 PROTECTION

A. Protecting Graded Areas: Protect newly graded areas from traffic, freezing, and erosion. Keep free of trash and debris.

B. Repair and reestablish grades to specified tolerances where completed or partially completed surfaces become eroded, rutted, settled, or where they lose compaction due to subsequent construction operations or weather conditions.

1. Scarify or remove and replace soil material to depth as directed by Architect; reshape and recompact.



C. Where settling occurs before Project correction period elapses, remove finished surfacing, backfill with additional soil material, compact, and reconstruct surfacing.

1. Restore appearance, quality, and condition of finished surfacing to match adjacent work, and eliminate evidence of restoration to greatest extent possible.

3.23 DISPOSAL OF SURPLUS AND WASTE MATERIALS

A. Remove surplus satisfactory soil and waste materials, including unsatisfactory soil, trash, and debris, and legally dispose of them off Owner's property.



EXCAVATION SUPPORT AND PROTECTION 315000 - 1

SECTION 315000 - EXCAVATION SUPPORT AND PROTECTION

UNION BRANCH

PART 1 - GENERAL



1.2 SUMMARY

A. Section includes temporary excavation support and protection systems.

B. Related Sections:

1. Section 013200 "Construction Progress Documentation" and Section 013233 "Photographic Documentation" for recording preexisting conditions and excavation support and protection system progress.

2. Section 015000 "Temporary Facilities and Controls" for temporary utilities and support facilities.

3. Section 312319 "Dewatering" for dewatering system for excavations.

1.3 PERFORMANCE REQUIREMENTS

A. Design, furnish, install, monitor, and maintain excavation support and protection system capable of supporting excavation sidewalls and of resisting soil and hydrostatic pressure and superimposed and construction loads.

1. Delegated Design: Design excavation support and protection system, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated.

2. Prevent surface water from entering excavations by grading, dikes, or other means. 3. Install excavation support and protection systems without damaging existing buildings,

structures, and site improvements adjacent to excavation. 4. Monitor vibrations, settlements, and movements.


A. Delegated-Design Submittal: For excavation support and protection system indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation.




A. Qualification Data: For qualified land surveyor and professional engineer.

B. Other Informational Submittals:

1. Photographs or Videotape: Show existing conditions of adjacent construction and site improvements that might be misconstrued as damage caused by the absence of, the installation of, or the performance of excavation support and protection systems. Submit before Work begins.

2. Record Drawings: Identifying and locating capped utilities and other subsurface structural, electrical, or mechanical conditions.


A. Not Used


A. Interruption of Existing Utilities: Do not interrupt any utility serving facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary utility according to requirements indicated:

1. Notify Architect and Owner no fewer than two days in advance of proposed interruption of utility.

2. Do not proceed with interruption of utility without Architect's and Owner’s written permission.

B. Project-Site Information: A geotechnical report has been prepared for this Project and is available for information only. The opinions expressed in this report are those of geotechnical engineer and represent interpretations of subsoil conditions, tests, and results of analyses conducted by geotechnical engineer. Owner will not be responsible for interpretations or conclusions drawn from the data.

1. Make additional test borings and conduct other exploratory operations necessary for excavation support and protection.

2. The geotechnical report is included elsewhere in the Project Manual.

C. Survey Work: Engage a qualified land surveyor or professional engineer to survey adjacent existing buildings, structures, and site improvements; establish exact elevations at fixed points to act as benchmarks. Clearly identify benchmarks and record existing elevations.

1. During installation of excavation support and protection systems, regularly resurvey benchmarks, maintaining an accurate log of surveyed elevations and positions for comparison with original elevations and positions. Promptly notify Architect if changes in elevations or positions occur or if cracks, sags, or other damage is evident in adjacent construction.



PART 2 - PRODUCTS

2.1 MATERIALS

A. General: Provide materials that are either new or in serviceable condition.

B. Structural Steel: ASTM A 36/A 36M, ASTM A 690/A 690M, or ASTM A 992/A 992M.

C. Steel Sheet Piling: ASTM A 328/A 328M, ASTM A 572/A 572M, or ASTM A 690/A 690M; with continuous interlocks.

D. Wood Lagging: Lumber, mixed hardwood, nominal rough thickness of size and strength required for application.

E. Shotcrete: Comply with Section 033713 "Shotcrete" for shotcrete materials and mixes, reinforcement, and shotcrete application.

F. Cast-in-Place Concrete: ACI 301, of compressive strength required for application.

G. Reinforcing Bars: ASTM A 615/A 615M, Grade 60 deformed.

H. Tiebacks: Steel bars, ASTM A 722/A 722M.

PART 3 - EXECUTION

3.1 PREPARATION

A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards that could develop during excavation support and protection system operations.

1. Shore, support, and protect utilities encountered.

B. Install excavation support and protection systems to ensure minimum interference with roads, streets, walks, and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Owner and authorities having jurisdiction. Provide alternate routes around closed or obstructed traffic ways if required by authorities having jurisdiction.

C. Locate excavation support and protection systems clear of permanent construction so that forming and finishing of concrete surfaces are not impeded.

D. Monitor excavation support and protection systems daily during excavation progress and for as long as excavation remains open. Promptly correct bulges, breakage, or other evidence of movement to ensure that excavation support and protection systems remain stable.



E. Promptly repair damages to adjacent facilities caused by installing excavation support and protection systems.

3.2 SOLDIER PILES AND LAGGING

A. Install steel soldier piles before starting excavation. Extend soldier piles below excavation grade level to depths adequate to prevent lateral movement. Space soldier piles at regular intervals not to exceed allowable flexural strength of wood lagging. Accurately align exposed faces of flanges to vary not more than 2 inches from a horizontal line and not more than 1:120 out of vertical alignment.

B. Install wood lagging within flanges of soldier piles as excavation proceeds. Trim excavation as required to install lagging. Fill voids behind lagging with soil, and compact.

C. Install wales horizontally at locations indicated on Drawings and secure to soldier piles.

3.3 SHEET PILING

A. Before starting excavation, install one-piece sheet piling lengths and tightly interlock to form a continuous barrier. Accurately place the piling, using templates and guide frames unless otherwise recommended in writing by the sheet piling manufacturer. Limit vertical offset of adjacent sheet piling to 60 inches. Accurately align exposed faces of sheet piling to vary not more than 2 inches from a horizontal line and not more than 1:120 out of vertical alignment. Cut tops of sheet piling to uniform elevation at top of excavation.

3.4 TIEBACKS

A. Tiebacks: Drill, install, grout, and tension tiebacks. Test load-carrying capacity of each tieback and replace and retest deficient tiebacks.

1. Test loading shall be observed by a qualified professional engineer responsible for design of excavation support and protection system.

2. Maintain tiebacks in place until permanent construction is able to withstand lateral soil and hydrostatic pressures.

3.5 BRACING

A. Bracing: Locate bracing to clear columns, floor framing construction, and other permanent work. If necessary to move brace, install new bracing before removing original brace.

1. Do not place bracing where it will be cast into or included in permanent concrete work unless otherwise approved by Architect.

2. Install internal bracing, if required, to prevent spreading or distortion of braced frames. 3. Maintain bracing until structural elements are supported by other bracing or until

permanent construction is able to withstand lateral earth and hydrostatic pressures.



3.6 REMOVAL AND REPAIRS

A. Remove excavation support and protection systems when construction has progressed sufficiently to support excavation and bear soil and hydrostatic pressures. Remove in stages to avoid disturbing underlying soils or damaging structures, pavements, facilities, and utilities.

1. Remove excavation support and protection systems to a minimum depth of 48 inches below overlaying construction and abandon remainder.

2. Fill voids immediately with approved backfill compacted to density specified in Section 312000 "Earth Moving."

3. Repair or replace, as approved by Engineer, adjacent work damaged or displaced by removing excavation support and protection systems.

B. Leave excavation support and protection systems permanently in place where applicable.



ASPHALT PAVING 321216 - 1

SECTION 321216 - ASPHALT PAVING

PART 1 - GENERAL



1.2 SUMMARY


1. Cold milling of existing asphalt pavement. 2. Hot-mix asphalt patching. 3. Hot-mix asphalt paving. 4. Hot-mix asphalt overlay. 5. Asphalt curbs. 6. Asphalt traffic-calming devices. 7. Asphalt surface treatments.

B. Related Requirements:

1. Section 024116 "Structure Demolition" and Section 024119 "Selective Structure Demolition" for demolition and removal of existing asphalt pavement.

2. Section 312000 "Earth Moving" for subgrade preparation, fill material, unbound-aggregate subbase and base courses, and aggregate pavement shoulders.

3. Section 321373 "Concrete Paving Joint Sealants" for joint sealants and fillers at pavement terminations.

4. Section 321400 "Unit Paving" for bituminous setting bed for pavers.

1.3 UNIT PRICES

A. Not used.

1.4 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference at Project site.

1. Review methods and procedures related to hot-mix asphalt paving including, but not limited to, the following:

a. Review proposed sources of paving materials, including capabilities and location of plant that will manufacture hot-mix asphalt.



b. Review requirements for protecting paving work, including restriction of traffic during installation period and for remainder of construction period.


A. Product Data: For each type of product.

1. Include technical data and tested physical and performance properties. 2. Job-Mix Designs: For each job mix proposed for the Work.


A. Qualification Data: For manufacturer and testing agency.

B. Material Certificates: For each paving material.

C. Material Test Reports: For each paving material, by a qualified testing agency.

D. Field quality-control reports.


A. Manufacturer Qualifications: A paving-mix manufacturer registered with and approved by authorities having jurisdiction or the DOT of state in which Project is located.

B. Testing Agency Qualifications: Qualified according to ASTM D 3666 for testing indicated.

C. Regulatory Requirements: Comply with materials, workmanship, and other applicable requirements of local DOT for asphalt paving work.

1. Measurement and payment provisions and safety program submittals included in standard specifications do not apply to this Section.

1.8 FIELD CONDITIONS

A. Environmental Limitations: Do not apply asphalt materials if subgrade is wet or excessively damp, if rain is imminent or expected before time required for adequate cure, or if the following conditions are not met:

1. Prime Coat: Minimum surface temperature of 60 deg F. 2. Tack Coat: Minimum surface temperature of 60 deg F . 3. Slurry Coat: Comply with weather limitations in ASTM D 3910. 4. Asphalt Base Course: Minimum surface temperature of 40 deg F and rising at time of

placement. 5. Asphalt Surface Course: Minimum surface temperature of 60 deg F at time of placement.



PART 2 - PRODUCTS

2.1 AGGREGATES

A. General: Use materials and gradations that have performed satisfactorily in previous installations.

B. Coarse Aggregate: ASTM D 692/D 692M, sound; angular crushed stone, or crushed gravel.

C. Fine Aggregate: ASTM D 1073 or AASHTO M 29, sharp-edged natural sand or sand prepared from stone, gravel, or combinations thereof.

1. For hot-mix asphalt, limit natural sand to a maximum of 20 percent by weight of the total aggregate mass.

D. Mineral Filler: ASTM D 242/D 242M or AASHTO M 17, rock or slag dust, hydraulic cement, or other inert material.

2.2 ASPHALT MATERIALS

A. Asphalt Binder: AASHTO M 320, PG 64-22.

B. Asphalt Cement: ASTM D 3381/D 3381M for viscosity-graded material.

C. Cutback Prime Coat: ASTM D 2027, medium-curing cutback asphalt, MC-30 or MC-70.

D. Emulsified Asphalt Prime Coat: ASTM D 977 or AASHTO M 140 emulsified asphalt, or ASTM D 2397 or AASHTO M 208 cationic emulsified asphalt, slow setting, diluted in water, of suitable grade and consistency for application.

E. Tack Coat: ASTM D 977 or AASHTO M 140 emulsified asphalt, or ASTM D 2397 or AASHTO M 208 cationic emulsified asphalt, slow setting, diluted in water, of suitable grade and consistency for application.

F. Fog Seal: ASTM D 977 or AASHTO M 140 emulsified asphalt, or ASTM D 2397 or AASHTO M 208 cationic emulsified asphalt, slow setting, factory diluted in water, of suitable grade and consistency for application.

G. Water: Potable.

2.3 AUXILIARY MATERIALS

A. Herbicide: Commercial chemical for weed control, registered by the EPA, and not classified as "restricted use" for locations and conditions of application. Provide in granular, liquid, or wettable powder form.

B. Sand: ASTM D 1073 or AASHTO M 29, Grade No. 2 or No. 3.



C. Joint Sealant: ASTM D 6690 or AASHTO M 324, Type II or III hot-applied, single-component, polymer-modified bituminous sealant.

2.4 MIXES

A. Hot-Mix Asphalt: Dense-graded, hot-laid, hot-mix asphalt plant mixes designed according to procedures in AI MS-2, "Mix Design Methods for Asphalt Concrete and Other Hot-Mix Types"; and complying with local DOT and the following requirements:

1. Provide mixes with a history of satisfactory performance in geographical area where Project is located.

2. Base Course: MoDOT Base Mix 3. Surface Course: MoDOT BP-2 4. See plans for exceptions to mix designations

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that subgrade is dry and in suitable condition to begin paving.

B. Proof-roll subgrade below pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.

1. Completely proof-roll subgrade in one direction, repeating proof-rolling in direction perpendicular to first direction. Limit vehicle speed to 3 mph.

2. Proof roll with a loaded 10-wheel, tandem-axle dump truck weighing not less than 400 psi

3. Excavate soft spots, unsatisfactory soils, and areas of excessive pumping or rutting, as determined by Engineer, and replace with compacted backfill or fill as directed.

C. Proceed with paving only after unsatisfactory conditions have been corrected.

3.2 COLD MILLING

A. Clean existing pavement surface of loose and deleterious material immediately before cold milling. Remove existing asphalt pavement by cold milling to grades and cross sections indicated. 1. Mill to a uniform finished surface free of excessive gouges, grooves, and ridges. 2. Control rate of milling to prevent tearing of existing asphalt course. 3. Repair or replace curbs, manholes, and other construction damaged during cold milling. 4. Excavate and trim unbound-aggregate base course, if encountered, and keep material

separate from milled hot-mix asphalt. 5. Patch surface depressions deeper than 1 inch after milling, before wearing course is laid. 6. Handle milled asphalt material according to approved waste management plan required in

Section 017419 "Construction Waste Management and Disposal."



7. Keep milled pavement surface free of loose material and dust. 8. Do not allow milled materials to accumulate on-site.

3.3 PATCHING

A. Asphalt Pavement: Saw cut perimeter of patch and excavate existing pavement section to sound base. Excavate rectangular or trapezoidal patches, extending 12 inches into perimeter of adjacent sound pavement, unless otherwise indicated. Cut excavation faces vertically. Remove excavated material. Recompact existing unbound-aggregate base course to form new subgrade.

B. Portland Cement Concrete Pavement: Break cracked slabs and roll as required to reseat concrete pieces firmly.

1. Pump hot undersealing asphalt under rocking slab until slab is stabilized or, if necessary, crack slab into pieces and roll to reseat pieces firmly.

2. Remove disintegrated or badly cracked pavement. Excavate rectangular or trapezoidal patches, extending into perimeter of adjacent sound pavement, unless otherwise indicated. Cut excavation faces vertically. Recompact existing unbound-aggregate base course to form new subgrade.

C. Tack Coat: Before placing patch material, apply tack coat uniformly to vertical asphalt surfaces abutting the patch. Apply at a rate of 0.05 to 0.15 gal./sq. yd.

1. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving. 2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings.

Remove spillages and clean affected surfaces.

D. Placing Patch Material: Fill excavated pavement areas with hot-mix asphalt base mix for full thickness of patch and, while still hot, compact flush with adjacent surface.

3.4 REPAIRS

1. Not used.

3.5 SURFACE PREPARATION

A. General: Immediately before placing asphalt materials, remove loose and deleterious material from substrate surfaces. Ensure that prepared subgrade is ready to receive paving.

B. Cutback Prime Coat: Apply uniformly over surface of compacted unbound-aggregate base course at a rate of 0.15 to 0.50 gal./sq. yd. (0.7 to 2.3 L/sq. m). Apply enough material to penetrate and seal, but not flood, surface. Allow prime coat to cure.

1. If prime coat is not entirely absorbed within 24 hours after application, spread sand over surface to blot excess asphalt. Use enough sand to prevent pickup under traffic. Remove loose sand by sweeping before pavement is placed and after volatiles have evaporated.

2. Protect primed substrate from damage until ready to receive paving.



C. Tack Coat: Apply uniformly to surfaces of existing pavement at a rate of 0.05 to 0.15 gal./sq. yd.

1. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving. 2. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings.

Remove spillages and clean affected surfaces.

3.6 PAVING GEOTEXTILE INSTALLATION

A. Not used.

3.7 PLACING HOT-MIX ASPHALT

A. Machine place hot-mix asphalt on prepared surface, spread uniformly, and strike off. Place asphalt mix by hand in areas inaccessible to equipment in a manner that prevents segregation of mix. Place each course to required grade, cross section, and thickness when compacted.

1. Place hot-mix asphalt base course in number of lifts and thicknesses indicated. 2. Place hot-mix asphalt surface course in single lift. 3. Spread mix at a minimum temperature of 250 deg F. 4. Begin applying mix along centerline of crown for crowned sections and on high side of

one-way slopes unless otherwise indicated. 5. Regulate paver machine speed to obtain smooth, continuous surface free of pulls and

tears in asphalt-paving mat.

B. Place paving in consecutive strips not less than 10 feet wide unless infill edge strips of a lesser width are required.

1. After first strip has been placed and rolled, place succeeding strips and extend rolling to overlap previous strips. Overlap mix placement about 1 to 1-1/2 inches from strip to strip to ensure proper compaction of mix along longitudinal joints.

2. Complete a section of asphalt base course before placing asphalt surface course.

C. Promptly correct surface irregularities in paving course behind paver. Use suitable hand tools to remove excess material forming high spots. Fill depressions with hot-mix asphalt to prevent segregation of mix; use suitable hand tools to smooth surface.

3.8 JOINTS

A. Construct joints to ensure a continuous bond between adjoining paving sections. Construct joints free of depressions, with same texture and smoothness as other sections of hot-mix asphalt course.

1. Clean contact surfaces and apply tack coat to joints. 2. Offset longitudinal joints, in successive courses, a minimum of 6 inches. 3. Offset transverse joints, in successive courses, a minimum of 24 inches.



4. Construct transverse joints at each point where paver ends a day's work and resumes work at a subsequent time.

5. Compact joints as soon as hot-mix asphalt will bear roller weight without excessive displacement.

6. Compact asphalt at joints to a density within 2 percent of specified course density.

3.9 COMPACTION

A. General: Begin compaction as soon as placed hot-mix paving will bear roller weight without excessive displacement. Compact hot-mix paving with hot, hand tampers or with vibratory-plate compactors in areas inaccessible to rollers.

1. Complete compaction before mix temperature cools to 185 deg F.

B. Breakdown Rolling: Complete breakdown or initial rolling immediately after rolling joints and outside edge. Examine surface immediately after breakdown rolling for indicated crown, grade, and smoothness. Correct laydown and rolling operations to comply with requirements.

C. Intermediate Rolling: Begin intermediate rolling immediately after breakdown rolling while hot-mix asphalt is still hot enough to achieve specified density. Continue rolling until hot-mix asphalt course has been uniformly compacted to the following density:

1. Average Density: 96 percent of reference laboratory density according to ASTM D 6927 or AASHTO T 245, but not less than 94 percent or greater than 100 percent.

D. Finish Rolling: Finish roll paved surfaces to remove roller marks while hot-mix asphalt is still warm.

E. Edge Shaping: While surface is being compacted and finished, trim edges of pavement to proper alignment. Bevel edges while asphalt is still hot; compact thoroughly.

F. Repairs: Remove paved areas that are defective or contaminated with foreign materials and replace with fresh, hot-mix asphalt. Compact by rolling to specified density and surface smoothness.

G. Protection: After final rolling, do not permit vehicular traffic on pavement until it has cooled and hardened.

H. Erect barricades to protect paving from traffic until mixture has cooled enough not to become marked.

3.10 ASPHALT CURBS

A. Not used.



3.11 ASPHALT TRAFFIC-CALMING DEVICES

A. Not used.

3.12 INSTALLATION TOLERANCES

A. Pavement Thickness: Compact each course to produce the thickness indicated within the following tolerances:

1. Base Course: Plus or minus 1/2 inch. 2. Surface Course: Plus 1/4 inch, no minus.

B. Pavement Surface Smoothness: Compact each course to produce a surface smoothness within the following tolerances as determined by using a 10-foot (3-m) straightedge applied transversely or longitudinally to paved areas:

1. Base Course: 1/4 inch. 2. Surface Course: 1/8 inch. 3. Crowned Surfaces: Test with crowned template centered and at right angle to crown.

Maximum allowable variance from template is 1/4 inch.

3.13 SURFACE TREATMENTS

1. Not used.


A. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections.

B. Thickness: In-place compacted thickness of hot-mix asphalt courses will be determined according to ASTM D 3549.

C. Surface Smoothness: Finished surface of each hot-mix asphalt course will be tested for compliance with smoothness tolerances.

D. In-Place Density: Testing agency will take samples of uncompacted paving mixtures and compacted pavement according to ASTM D 979 or AASHTO T 168.

1. Reference maximum theoretical density will be determined by averaging results from four samples of hot-mix asphalt-paving mixture delivered daily to site, prepared according to ASTM D 2041, and compacted according to job-mix specifications.

2. In-place density of compacted pavement will be determined by testing core samples according to ASTM D 1188 or ASTM D 2726.

a. One core sample will be taken for every 1000 sq. yd. or less of installed pavement, with no fewer than three cores taken.



b. Field density of in-place compacted pavement may also be determined by nuclear method according to ASTM D 2950 and correlated with ASTM D 1188 or ASTM D 2726.

E. Replace and compact hot-mix asphalt where core tests were taken.

F. Remove and replace or install additional hot-mix asphalt where test results or measurements indicate that it does not comply with specified requirements.

3.15 WASTE HANDLING

A. General: Handle asphalt-paving waste according to approved waste management plan required in Section 017419 "Construction Waste Management and Disposal."



CONCRETE PAVING 321313 - 1

SECTION 321313 - CONCRETE PAVING

PART 1 - GENERAL



1.2 SUMMARY


1. Driveways. 2. Roadways. 3. Parking lots. 4. Curbs and gutters. 5. Walks.

B. Related Sections:

1. Section 033000 "Cast-in-Place Concrete" Section 033053 "Miscellaneous Cast-in-Place Concrete"] for general building applications of concrete.

2. Section 321316 "Decorative Concrete Paving" for stamped concrete other than detectable warnings.

3. Section 321373 "Concrete Paving Joint Sealants" for joint sealants in expansion and contraction joints within concrete paving and in joints between concrete paving and asphalt paving or adjacent construction.

1.3 DEFINITIONS

A. Cementitious Materials: Portland cement alone or in combination with one or more of blended hydraulic cement, fly ash and other pozzolans, and ground granulated blast-furnace slag.


A. Product Data: For each type of product indicated.

B. LEED Submittals:

1. Not used.

C. Other Action Submittals:



1. Design Mixtures: For each concrete paving mixture. Include alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.


A. Qualification Data: For qualified ready-mix concrete manufacturer and testing agency.

B. Material Certificates: For the following, from manufacturer:

1. Cementitious materials. 2. Steel reinforcement and reinforcement accessories. 3. Admixtures. 4. Curing compounds. 5. Applied finish materials. 6. Bonding agent or epoxy adhesive. 7. Joint fillers.

C. Material Test Reports: For each of the following:

1. Aggregates.

D. Field quality-control reports.


A. Ready-Mix-Concrete Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities" (Quality Control Manual - Section 3, "Plant Certification Checklist").

B. Testing Agency Qualifications: Qualified according to ASTM C 1077 and ASTM E 329 for testing indicated.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-1 or an equivalent certification program.

C. Concrete Testing Service: Engage a qualified testing agency to perform material evaluation tests and to design concrete mixtures.

D. ACI Publications: Comply with ACI 301 unless otherwise indicated.

E. Preinstallation Conference: Conduct conference at Project site.

1. Review methods and procedures related to concrete paving, including but not limited to, the following:



a. Concrete mixture design. b. Quality control of concrete materials and concrete paving construction practices.

2. Require representatives of each entity directly concerned with concrete paving to attend, including the following:

a. Contractor's superintendent. b. Independent testing agency responsible for concrete design mixtures. c. Ready-mix concrete manufacturer. d. Concrete paving subcontractor.


A. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities.

B. Pavement-Marking Paint: Proceed with pavement marking only on clean, dry surfaces and at a minimum ambient or surface temperature of 40 deg F for oil-based materials 55 deg F for water-based materials, and not exceeding 95 deg F.

PART 2 - PRODUCTS

2.1 FORMS

A. Form Materials: Plywood, metal, metal-framed plywood, or other approved panel-type materials to provide full-depth, continuous, straight, and smooth exposed surfaces.

1. Use flexible or uniformly curved forms for curves with a radius of 100 feet (30.5 m) or less. Do not use notched and bent forms.

B. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and that will not impair subsequent treatments of concrete surfaces.

2.2 STEEL REINFORCEMENT

A. Plain-Steel Welded Wire Reinforcement: ASTM A 185/A 185M, fabricated from as-drawn steel wire into flat sheets.

B. Deformed-Steel Welded Wire Reinforcement: ASTM A 497/A 497M, flat sheet.

C. Epoxy-Coated Welded Wire Reinforcement: ASTM A 884/A 884M, Class A, plain steel.

D. Reinforcing Bars: ASTM A 615/A 615M, Grade 60; deformed.

E. Galvanized Reinforcing Bars: ASTM A 767/A 767M, Class II zinc coated, hot-dip galvanized after fabrication and bending; with ASTM A 615/A 615M, Grade 60 (Grade 420) deformed bars.



F. Epoxy-Coated Reinforcing Bars: ASTM A 775/A 775M or ASTM A 934/A 934M; with ASTM A 615/A 615M, Grade 60 deformed bars.

G. Plain-Steel Wire: ASTM A 82/A 82M, as drawn.

H. Deformed-Steel Wire: ASTM A 496/A 496M.

I. Joint Dowel Bars: ASTM A 615/A 615M, Grade 60 plain-steel bars[; zinc coated after fabrication according to ASTM A 767/A 767M, Class I coating. Cut bars true to length with ends square and free of burrs.

J. Epoxy-Coated, Joint Dowel Bars: ASTM A 775/A 775M; with ASTM A 615/A 615M, Grade 60, plain-steel bars.

K. Tie Bars: ASTM A 615/A 615M, Grade 60, deformed.

L. Hook Bolts: ASTM A 307, Grade A, internally and externally threaded. Design hook-bolt joint assembly to hold coupling against paving form and in position during concreting operations, and to permit removal without damage to concrete or hook bolt.

M. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, welded wire reinforcement, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete of greater compressive strength than concrete specified, and as follows:

1. Equip wire bar supports with sand plates or horizontal runners where base material will not support chair legs.

2. For epoxy-coated reinforcement, use epoxy-coated or other dielectric-polymer-coated wire bar supports.

N. Epoxy Repair Coating: Liquid, two-part, epoxy repair coating, compatible with epoxy coating on reinforcement.

O. Zinc Repair Material: ASTM A 780.

2.3 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of same type, brand, and source throughout Project:

1. Portland Cement: ASTM C 150, gray portland cement Type I.

B. Normal-Weight Aggregates: ASTM C 33, Class 4S uniformly graded. Provide aggregates from a single source.

1. Maximum Coarse-Aggregate Size: 1 inch nominal for slabs less than 5.5” thick. 2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

3. Aggregate Sizes: 3/4 to 1 inch nominal.



C. Water: Potable and complying with ASTM C 94/C 94M.

D. Air-Entraining Admixture: ASTM C 260.

E. Chemical Admixtures: Admixtures certified by manufacturer to be compatible with other admixtures and to contain not more than 0.1 percent water-soluble chloride ions by mass of cementitious material.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A. 2. Retarding Admixture: ASTM C 494/C 494M, Type B. 3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D. 4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F. 5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M,

Type G. 6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.

2.4 FIBER REINFORCEMENT

A. Not used.

2.5 CURING MATERIALS

A. Absorptive Cover: AASHTO M 182, Class 3, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. dry.

B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

C. Water: Potable.

D. Evaporation Retarder: Waterborne, monomolecular, film forming, manufactured for application to fresh concrete.

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

F. White, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 2, Class B, dissipating.

2.6 RELATED MATERIALS

A. Joint Fillers: ASTM D 1751, asphalt-saturated cellulosic fiber or ASTM D 1752, cork or self-expanding cork in preformed strips.

B. Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.



C. Epoxy Bonding Adhesive: ASTM C 881/C 881M, two-component epoxy resin capable of humid curing and bonding to damp surfaces; of class suitable for application temperature, of grade complying with requirements, and of the following types:

1. Types I and II, non-load bearing for bonding hardened or freshly mixed concrete to hardened concrete.

D. Chemical Surface Retarder: Water-soluble, liquid, set retarder with color dye, for horizontal concrete surface application, capable of temporarily delaying final hardening of concrete to a depth of 1/8 to 1/4 inch.

E. Rock Salt: Sodium chloride crystals, kiln dried, coarse gradation with 100 percent passing 3/8-inch (9.5-mm) sieve and 85 percent retained on a No. 8 (2.36-mm) sieve.

2.7 DETECTABLE WARNING MATERIALS

A. Detectable Warning Stamp: Semirigid polyurethane mats with formed underside capable of imprinting detectable warning pattern on plastic concrete; perforated with a vent hole at each dome.

2.8 PAVEMENT MARKINGS

A. See Section 321723

2.9 WHEEL STOPS

A. Not Used.

2.10 PREFORMED TRAFFIC-CALMING DEVICES

A. Not Used.

2.11 CONCRETE MIXTURES

A. Prepare design mixtures, proportioned according to ACI 30, for each type and strength of normal-weight concrete, and as determined by either laboratory trial mixtures or field experience.

1. Use a qualified independent testing agency for preparing and reporting proposed concrete design mixtures for the trial batch method.

2. When automatic machine placement is used, determine design mixtures and obtain laboratory test results that meet or exceed requirements.

B. Proportion mixtures to provide normal-weight concrete with the following properties:

1. Compressive Strength (28 Days): 4,000 psi 2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.45.



3. Slump Limit: 5 inches plus or minus 1 inch.

C. Add air-entraining admixture at manufacturer's prescribed rate to result in normal-weight concrete at point of placement having an air content as follows:

1. Air Content: 5-1/2 percent plus or minus 1.5 percent for 1-1/2-inch nominal maximum aggregate size.

2. Air Content: 6 percent plus or minus 1.5 percent for 1-inch nominal maximum aggregate size.

3. Air Content: 6 percent plus or minus 1.5 percent for 3/4-inch nominal maximum aggregate size.

D. Limit water-soluble, chloride-ion content in hardened concrete to 0.15 percent by weight of cement.

E. Chemical Admixtures: Use admixtures according to manufacturer's written instructions. 1. Use water-reducing and retarding admixture when required by high temperatures, low

humidity, or other adverse placement conditions.

2.12 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M[. Furnish batch certificates for each batch discharged and used in the Work.

1. When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes.

B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer.

1. For concrete batches of 1 cu. yd. or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

2. For concrete batches larger than 1 cu. yd., increase mixing time by 15 seconds for each additional 1 cu. yd.

3. Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixing time, quantity, and amount of water added.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine exposed subgrades and subbase surfaces for compliance with requirements for dimensional, grading, and elevation tolerances.



B. Proof-roll prepared subbase surface below concrete paving to identify soft pockets and areas of excess yielding.

1. Completely proof-roll subbase in one direction and repeat in perpendicular direction. Limit vehicle speed to 3 mph.

2. Proof-roll with a pneumatic-tired and loaded, 10-wheel, tandem-axle dump truck weighing not less than 400 psi.

3. Correct subbase with soft spots and areas of pumping or rutting exceeding depth of 1/2 inch according to requirements in Section 312000 "Earth Moving."

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Remove loose material from compacted subbase surface immediately before placing concrete.

3.3 EDGE FORMS AND SCREED CONSTRUCTION

A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides to required lines, grades, and elevations. Install forms to allow continuous progress of work and so forms can remain in place at least 24 hours after concrete placement.

B. Clean forms after each use and coat with form-release agent to ensure separation from concrete without damage.

3.4 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

B. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials.

C. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement. Maintain minimum cover to reinforcement.

D. Install welded wire reinforcement in lengths as long as practicable. Lap adjoining pieces at least one full mesh, and lace splices with wire. Offset laps of adjoining widths to prevent continuous laps in either direction.

E. Zinc-Coated Reinforcement: Use galvanized-steel wire ties to fasten zinc-coated reinforcement. Repair cut and damaged zinc coatings with zinc repair material.

F. Epoxy-Coated Reinforcement: Use epoxy-coated steel wire ties to fasten epoxy-coated reinforcement. Repair cut and damaged epoxy coatings with epoxy repair coating according to ASTM D 3963/D 3963M.



G. Install fabricated bar mats in lengths as long as practicable. Handle units to keep them flat and free of distortions. Straighten bends, kinks, and other irregularities, or replace units as required before placement. Set mats for a minimum 2-inch overlap of adjacent mats.

3.5 JOINTS

A. General: Form construction, isolation, and contraction joints and tool edges true to line, with faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to centerline unless otherwise indicated.

1. When joining existing paving, place transverse joints to align with previously placed joints unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of paving and at locations where paving operations are stopped for more than one-half hour unless paving terminates at isolation joints.

1. Continue steel reinforcement across construction joints unless otherwise indicated. Do not continue reinforcement through sides of paving strips unless otherwise indicated.

2. Provide tie bars at sides of paving strips where indicated. 3. Butt Joints: Use bonding agent at joint locations where fresh concrete is placed against

hardened or partially hardened concrete surfaces. 4. Keyed Joints: Provide preformed keyway-section forms or bulkhead forms with keys

unless otherwise indicated. Embed keys at least 1-1/2 inches into concrete. 5. Doweled Joints: Install dowel bars and support assemblies at joints where indicated.

Lubricate or coat with asphalt one-half of dowel length to prevent concrete bonding to one side of joint.

C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, other fixed objects, and where indicated.

1. Locate expansion joints at intervals of 50 feet unless otherwise indicated. 2. Extend joint fillers full width and depth of joint. 3. Terminate joint filler not less than 1/2 inch or more than 1 inch below finished surface if

joint sealant is indicated. 4. Place top of joint filler flush with finished concrete surface if joint sealant is not

indicated. 5. Furnish joint fillers in one-piece lengths. Where more than one length is required, lace or

clip joint-filler sections together. 6. During concrete placement, protect top edge of joint filler with metal, plastic, or other

temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint.

D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows:

1. Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint with grooving tool to a 1/4-inc radius. Repeat grooving of contraction



joints after applying surface finishes. Eliminate grooving-tool marks on concrete surfaces.

a. Tolerance: Ensure that grooved joints are within 3 inches either way from centers of dowels.

2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface and before developing random contraction cracks.

a. Tolerance: Ensure that sawed joints are within 3 inches either way from centers of dowels.

3. Doweled Contraction Joints: Install dowel bars and support assemblies at joints where indicated. Lubricate or coat with asphalt one-half of dowel length to prevent concrete bonding to one side of joint.

E. Edging: After initial floating, tool edges of paving, gutters, curbs, and joints in concrete with an edging tool to a 1/4-inch radius. Repeat tooling of edges after applying surface finishes. Eliminate edging-tool marks on concrete surfaces.

3.6 CONCRETE PLACEMENT

A. Before placing concrete, inspect and complete formwork installation, steel reinforcement, and items to be embedded or cast-in.

B. Remove snow, ice, or frost from subbase surface and steel reinforcement before placing concrete. Do not place concrete on frozen surfaces.

C. Moisten subbase to provide a uniform dampened condition at time concrete is placed. Do not place concrete around manholes or other structures until they are at required finish elevation and alignment.

D. Comply with ACI 301 requirements for measuring, mixing, transporting, and placing concrete.

E. Do not add water to concrete during delivery or at Project site. Do not add water to fresh concrete after testing.

F. Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place.

G. Consolidate concrete according to ACI 301 by mechanical vibrating equipment supplemented by hand spading, rodding, or tamping.

1. Consolidate concrete along face of forms and adjacent to transverse joints with an internal vibrator. Keep vibrator away from joint assemblies, reinforcement, or side forms. Use only square-faced shovels for hand spreading and consolidation. Consolidate with care to prevent dislocating reinforcement, dowels and joint devices.



H. Screed paving surface with a straightedge and strike off.

I. Commence initial floating using bull floats or darbies to impart an open-textured and uniform surface plane before excess moisture or bleed water appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations or spreading surface treatments.

J. Curbs and Gutters: Produce curbs and gutters to required cross section, lines, grades, finish, and jointing.

K. Slip-Form Paving: Use design mixture for automatic machine placement where applicable. Produce paving to required thickness, lines, grades, finish, and jointing.

1. Compact subbase and prepare subgrade of sufficient width to prevent displacement of slip-form paving machine during operations.

L. Cold-Weather Placement: Protect concrete work from physical damage or reduced strength that could be caused by frost, freezing, or low temperatures. Comply with ACI 306.1 and the following:

1. When air temperature has fallen to or is expected to fall below 40 deg F, uniformly heat water and aggregates before mixing to obtain a concrete mixture temperature of not less than 50 deg F and not more than 80 deg F at point of placement.

2. Do not use frozen materials or materials containing ice or snow. 3. Do not use calcium chloride, salt, or other materials containing antifreeze agents or

chemical accelerators unless otherwise specified and approved in design mixtures.

M. Hot-Weather Placement: Comply with ACI 301 and as follows when hot-weather conditions exist:

1. Cool ingredients before mixing to maintain concrete temperature below 90 deg F at time of placement. Chilled mixing water or chopped ice may be used to control temperature, provided water equivalent of ice is calculated in total amount of mixing water. Using liquid nitrogen to cool concrete is Contractor's option.

2. Cover steel reinforcement with water-soaked burlap so steel temperature will not exceed ambient air temperature immediately before embedding in concrete.

3. Fog-spray forms, steel reinforcement, and subgrade just before placing concrete. Keep subgrade moisture uniform without standing water, soft spots, or dry areas.

3.7 FLOAT FINISHING

A. General: Do not add water to concrete surfaces during finishing operations.

B. Float Finish: Begin the second floating operation when bleed-water sheen has disappeared and concrete surface has stiffened sufficiently to permit operations. Float surface with power-driven floats or by hand floating if area is small or inaccessible to power units. Finish surfaces to true planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform granular texture.

1. Burlap Finish: Drag a seamless strip of damp burlap across float-finished concrete, perpendicular to line of traffic, to provide a uniform, gritty texture.



2. Medium-to-Fine-Textured Broom Finish: Draw a soft-bristle broom across float-finished concrete surface perpendicular to line of traffic to provide a uniform, fine-line texture.

3. Medium-to-Coarse-Textured Broom Finish: Provide a coarse finish by striating float-finished concrete surface 1/16 to 1/8 inch deep with a stiff-bristled broom, perpendicular to line of traffic.

4. Confirm locations with engineer and architect.

3.8 SPECIAL FINISHES

A. Not used.

3.9 DETECTABLE WARNINGS

A. Blockouts: Form blockouts in concrete for installation of detectable paving units".

1. Tolerance for Opening Size: Plus 1/4 inch , no minus.

B. Stamped Detectable Warnings: Install stamped detectable warnings as part of a continuous concrete paving placement and according to stamp-mat manufacturer's written instructions.

1. Before using stamp mats, verify that the vent holes are unobstructed. 2. Apply liquid release agent to the concrete surface and the stamp mat. 3. Stamping: While initially finished concrete is plastic] accurately align and place stamp

mats in sequence. Uniformly load, gently vibrate, and press mats into concrete to produce imprint pattern on concrete surface. Load and tamp mats directly perpendicular to the stamp-mat surface to prevent distortion in shape of domes. Press and tamp until mortar begins to come through all of the vent holes. Gently remove stamp mats.

4. Trimming: After 24 hours, cut off the tips of mortar formed by the vent holes. 5. Remove residual release agent according to manufacturer's written instructions, but no

fewer than three days after stamping concrete. High-pressure-wash surface and joint patterns, taking care not to damage stamped concrete. Control, collect, and legally dispose of runoff.

3.10 CONCRETE PROTECTION AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures.

B. Comply with ACI 306.1 for cold-weather protection.

C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete but before float finishing.

D. Begin curing after finishing concrete but not before free water has disappeared from concrete surface.



E. Curing Methods: Cure concrete by moisture curing, moisture-retaining-cover curing, curing compound, or a combination of these as follows:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days with the following materials:

a. Water. b. Continuous water-fog spray. c. Absorptive cover, water saturated and kept continuously wet. Cover concrete

surfaces and edges with 12-inch (300-mm) lap over adjacent absorptive covers.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover, placed in widest practicable width, with sides and ends lapped at least 12 inches and sealed by waterproof tape or adhesive. Immediately repair any holes or tears occurring during installation or curing period using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas that have been subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating, and repair damage during curing period.

3.11 PAVING TOLERANCES

A. Comply with tolerances in ACI 117 and as follows:

1. Elevation: 3/4 inch. 2. Thickness: Plus 3/8 inch, minus 1/4 inch. 3. Surface: Gap below 10-foot- long, unleveled straightedge not to exceed 1/2 inch. 4. Alignment of Tie-Bar End Relative to Line Perpendicular to Paving Edge: 1/2 inch per

12 inches of tie bar. 5. Lateral Alignment and Spacing of Dowels: 1 inch. 6. Vertical Alignment of Dowels: 1/4 inch. 7. Alignment of Dowel-Bar End Relative to Line Perpendicular to Paving Edge: 1/4 inch

per 12 inches of dowel. 8. Joint Spacing: 3 inches. 9. Contraction Joint Depth: Plus 1/4 inch, no minus. 10. Joint Width: Plus 1/8 inch, no minus.

3.12 PAVEMENT MARKING

A. Do not apply pavement-marking paint until layout, colors, and placement have been verified with Engineer.

B. Allow concrete paving to cure for a minimum of 28 days and be dry before starting pavement marking.

C. Sweep and clean surface to eliminate loose material and dust.

D. Apply paint with mechanical equipment to produce markings of dimensions indicated with uniform, straight edges.



3.13 WHEEL STOPS

A. Not used

3.14 PREFORMED TRAFFIC-CALMING DEVICES

A. Not used.


A. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections.

B. Testing Services: Testing of composite samples of fresh concrete obtained according to ASTM C 172 shall be performed according to the following requirements:

1. Testing Frequency: Obtain at least one composite sample for each 100 cu. yd. or fraction thereof of each concrete mixture placed each day.

a. When frequency of testing will provide fewer than five compressive-strength tests for each concrete mixture, testing shall be conducted from at least five randomly selected batches or from each batch if fewer than five are used.

2. Slump: ASTM C 143/C 143M; one test at point of placement for each composite sample, but not less than one test for each day's pour of each concrete mixture. Perform additional tests when concrete consistency appears to change.

3. Air Content: ASTM C 231, pressure method; one test for each composite sample, but not less than one test for each day's pour of each concrete mixture.

4. Concrete Temperature: ASTM C 1064/C 1064M; one test hourly when air temperature is 40 deg F and below and when it is 80 deg F and above, and one test for each composite sample.

5. Compression Test Specimens: ASTM C 31/C 31M; cast and laboratory cure one set of three standard cylinder specimens for each composite sample.

6. Compressive-Strength Tests: ASTM C 39/C 39M; test one specimen at seven days and two specimens at 28 days.

a. A compressive-strength test shall be the average compressive strength from two specimens obtained from same composite sample and tested at 28 days.

C. Strength of each concrete mixture will be satisfactory if average of any three consecutive compressive-strength tests equals or exceeds specified compressive strength and no compressive-strength test value falls below specified compressive strength by more than 500 psi.

D. Test results shall be reported in writing to Engineer, concrete manufacturer, and Contractor within 48 hours of testing. Reports of compressive-strength tests shall contain Project identification name and number, date of concrete placement, name of concrete testing and inspecting agency, location of concrete batch in Work, design compressive strength at 28 days, concrete mixture proportions and materials, compressive breaking strength, and type of break for both 7- and 28-day tests.



E. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be permitted by Engineer but will not be used as sole basis for approval or rejection of concrete.

F. Additional Tests: Testing and inspecting agency shall make additional tests of concrete when test results indicate that slump, air entrainment, compressive strengths, or other requirements have not been met, as directed by Architect.

G. Concrete paving will be considered defective if it does not pass tests and inspections.

H. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements.

I. Prepare test and inspection reports.

3.16 REPAIRS AND PROTECTION

A. Remove and replace concrete paving that is broken, damaged, or defective or that does not comply with requirements in this Section. Remove work in complete sections from joint to joint unless otherwise approved by Engineer.

B. Drill test cores, where directed by Engineer, when necessary to determine magnitude of cracks or defective areas. Fill drilled core holes in satisfactory paving areas with portland cement concrete bonded to paving with epoxy adhesive.

C. Protect concrete paving from damage. Exclude traffic from paving for at least 14 days after placement. When construction traffic is permitted, maintain paving as clean as possible by removing surface stains and spillage of materials as they occur.

D. Maintain concrete paving free of stains, discoloration, dirt, and other foreign material. Sweep paving not more than two days before date scheduled for Substantial Completion inspections.



08/21 32 31 19 1

SECTION 32 31 19 - DECORATIVE METAL FENCES AND GATES

PART 1 - GENERAL

1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2

SUMMARY


1. Decorative aluminum fences. 2. Swing gates.

B. Related Sections: 1. Section 033000 "Cast-in-Place Concrete" for concrete.

2. Section 312000 "Earth Moving" for site excavation, fill, and backfill where decorative metal fences and gates are located.

1.3

SYSTEM DESCRIPTION

A. The manufacturer shall supply a total fence system. The ornamental fence system shall be 4’-0” in height from grade.

B. The system shall include all components (i.e., pickets, posts, rails, gates and hardware) required.

1.4

PERFORMANCE REQUIREMENTS

A. Lightning-Protection System: Maximum grounding-resistance value of 25 ohms under normal dry conditions.

1.5

REFERENCES

A. ASTM B117 – Practice for Operating Salt-Spray (Fog) Apparatus. B. ASTM B221 – Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars,

Rods, Wire, Profiles and Tubes. C. ASTM D523 – Test Method for Specular Gloss.


08/21 32 31 19 2

D. ASTM D822 – Practice for Conducting Tests on Paint and Related or Coatings and Materials using Filtered Open-Flame Carbon-Arc Light and Water Exposure Apparatus.

E. ASTM D1654 – Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments.

F. ASTM D2244 – Test Method for Calculation of Color Differences from Instrumentally Measured Color Coordinates.

G. ASTM D2794 – Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact).

H. ASTM D3359 – Test Method for Measuring Adhesion by Tape Test. I. AAMA 2603 – Voluntary Specification, Performance Requirements & Test Procedures for

Pigmented organic Coatings on Aluminum Extrusions and Panels.

1.6

ACTION SUBMITTALS

A. Product Data: For each type of product indicated. B. Shop Drawings: Show locations of fence, posts, rails, details of extended post and accessories.

Indicate materials, dimensions, sizes, weights, and finishes of components. Include plans, sections, details of post anchorage, attachment, bracing and other required installation and operational clearances. Include plans, elevations, sections, details, and attachments to other work.

C. Product Certificates: For each type of fence, from manufacturer. D. Warranty: Sample of special warranty. E. Samples: For each fence material and for each color specified. 1. Provide Samples 12 inches (300 mm) in length for linear materials.

1.7

INFORMATIONAL SUBMITTALS

A. Welding certificates. B. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified

testing agency, for decorative metallic-coated steel tubular picket fences, including finish, indicating compliance with referenced standard and other specified requirements.

1.8

QUALITY ASSURANCE

A. Installer Qualifications: Installer shall provide laborers and supervisors who are thoroughly familiar with the type of construction involved and materials and techniques specified.


08/21 32 31 19 3

B. Welding Qualifications: Qualify procedures and personnel according to AWS D1.2/D1.2M, "Structural Welding Code - Aluminum."

C. Mockups: Build mockups to verify selections made under sample submittals and to demonstrate

aesthetic effects and set quality standards for fabrication and installation.

1. Include 10-foot (3-m) length of fence complying with requirements. 2. Approved mockups may become part of the completed Work if undisturbed at time of

Substantial Completion.

D. Preinstallation Conference: Conduct conference at Project site.

1.9 PRODUCT HANDLING AND STORAGE

A. Upon receipt at the job site, all materials shall be checked to ensure that no damage occurred during shipping and handling.

B. Materials shall be stored in such manner to ensure proper ventilation and drainage, and to

protect against damage, weather, vandalism and theft.

1.10 PRODUCT WARRANTY

A. All structural fence components (i.e. rails, pickets, and posts) shall be warranted within specified limitations, by the manufacturer for a period of twenty (20) years from date of original purchase. Warranty shall cover any defects in material finish, including cracking, peeling, chipping, blistering or corroding.

B. Reimbursement for labor necessary to restore and replace components that have been found to be

defective under the terms of manufacturer’s warranty shall be guaranteed for five (5) years from date of original purchase,

PART 2 - PRODUCTS

2.1 ALUMINUM

A. Aluminum, General: Provide alloys and tempers with not less than the strength and durability properties of alloy and temper designated in paragraphs below for each aluminum form required.

B. Extrusions: ASTM B 221 (ASTM B 221M), Alloy 6063-T5.

C. Tubing: ASTM B 429, Alloy 6063-T6.

D. Plate and Sheet: ASTM B 209 (ASTM B 209M), Alloy 6061-T6.

E. Die and Hand Forgings: ASTM B 247 (ASTM B 247M), Alloy 6061-T6.

F. Castings: ASTM B 26/B 26M, Alloy A356.0-T6.


08/21 32 31 19 4

G. Aluminum material for fence framework (i.e., tubular pickets, rails, and posts) shall conform to the requirements of ASTM B221. The aluminum extrusions for posts and rails shall be Alloy and Temper Designation 6005-T5. The aluminum extrusions for pickets shall be Alloy and Temper Designation 6063-T6.

H. Pickets shall be 5/8” square by .050” thick. Horizontal rails shall be 1” by 1-1/8” Forerunner

channel with .055” thick top & internal web wall, and .072” thick side walls and shall be punched to allow picket to pass through the top of the rail. The Forerunner rail shall be constructed with an internal web insert providing a raceway for the pickets to be retained with a 1/8” retaining rod. Fence posts and gate posts shall meet the minimum size requirements of listed latter in this specification.

2.2 MISCELLANEOUS MATERIALS

A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded.

1. For aluminum, provide type and alloy as recommended by producer of metal to be welded

and as required for strength and compatibility in fabricated items.

B. Concrete: Normal-weight, air-entrained, ready-mix concrete complying with requirements in Section 033000 "Cast-in-Place Concrete" with a minimum 28-day compressive strength of 3000 psi (20 MPa), 3-inch (75-mm) slump, and 1-inch (25-mm) maximum aggregate size or dry, packaged, normal-weight concrete mix complying with ASTM C 387 mixed with potable water according to manufacturer's written instructions.

2.3 GROUNDING MATERIALS

A. Grounding Connectors and Grounding Rods: Comply with UL 467.

1. Connectors for Below-Grade Use: Exothermic-welded type. 2. Grounding Rods: Copper-clad steel.

a. Size: 5/8 by 96 inches (16 by 2440 mm).

2.4 DECORATIVE ALUMINUM FENCES

A. Decorative Aluminum Fences: Fences made from aluminum extrusions.

1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings, Echelon Majestic ornamental aluminum fencing system by Ameristar Fence Products, or comparable product by one of the following:

a. Alumi-Guard, Inc. b. Ameristar Fence Products. c. Elegant Aluminum Products, Inc. d. Royal Aluminum and Steel, Inc.


08/21 32 31 19 5

B. Posts: Square extruded tubes.

1. Line Posts: 2 by 2 inches (50 by 50 mm) with 0.062-inch (1.57-mm) wall thickness. 2. End and Corner Posts: 2 by 2 inches (50 by 50 mm) with 0.062-inch (1.57-mm) wall

thickness. 3. Swing Gate Posts: 2 by 2 inches (50 by 50 mm) with 0.125-inch (3.18-mm) wall

thickness.

C. Post Caps: Aluminum castings that cover entire top of posts.

D. Rails: Extruded-aluminum channels, 1 by 1-1/8 inches (25 by 29 mm), with 0.072-inch- (1.80- mm-) thick sidewalls and 0.055-inch- (1.40-mm-) thick top.

E. Pickets: Extruded-aluminum tubes, 5/8 inch (16 mm) square, with 0.050-inch (1.27-mm) wall

thickness.

1. Terminate tops of pickets at top rail for flush top appearance. 2. Picket Spacing: 4 inches (101.6 mm) clear, maximum.

F. Fasteners: Manufacturer's standard concealed fastening system.

G. Fasteners: Manufacturer's standard tamperproof, corrosion-resistant, color-coated fasteners

matching fence components with resilient polymer washers.

H. Fabrication: Assemble fences into sections by fastening pickets to rails.

1. Fabricate sections with clips welded to rails for fastening to posts in field. 2. Drill clips for fasteners before finishing.

I. Accessories: Aluminum castings shall be used for all post caps, scrolls, finials, and other

miscellaneous hardware. Hinges and latches shall be fabricated from aluminum, stainless steel or composite materials.

2.5 SWING GATES

A. Gate Configuration: Single leaf, as indicated.

B. Gate Frame Height: 48 inches (1218 mm), as indicated.

C. Gate Opening Width: 36 inches (914 mm), as indicated.

D. Aluminum Frames and Bracing: Fabricate members from square extruded-aluminum tubes 2 by 2 inches (50 by 50 mm) with 0.125-inch (3.18-mm) wall thickness.

E. Frame Corner Construction: Assembled with corner fittings.

F. Additional Rails: Provide as indicated, complying with requirements for fence rails.

G. Infill: Comply with requirements for adjacent fence.

H. Picket Size, Configuration, and Spacing: Comply with requirements for adjacent fence.


08/21 32 31 19 6

I. Hardware: Latches permitting operation from both sides of gate, hinges, and keepers for each gate.

J. Spring Hinges: BHMA A156.17, Grade 1, suitable for exterior use.

1. Function: 320 - Gate spring pivot hinge. Adjustable tension.

K. Latching: Positive latching that can be opened from either side of the gate.

L. Aluminum Finish: Powder coating.

2.6 ALUMINUM FINISHES

A. The manufactured framework shall be subjected to the Ameristar thermal stratification coating process (high-temperature, inline, multi-stage, and multi-layer) including, as a minimum, a six- stage pretreatment/wash and an electrostatic spray application of a polyester finish. The topcoat shall be a “no-mar” TGIC polyester powder coat finish with a minimum thickness of 2 mils (0.0508 mm). The stratification-coated framework shall be capable of meeting the performance requirements for each quality characteristic shown below.

1. Adhesion:

a. ASTM Test Method: D3359 – Method B. b. Performance Requirements: Adhesion (Retention of Coating) over 90% of test area

(tape and knife test).

2. Corrosion Resistance:

a. ASTM Test Method: B117 & D1654. b. Performance Requirements: Corrosion Resistance over 1,000 hours (Scribed per

D1654; failure mode is accumulation of 1/8” coating loss from scribe or medium #8 blisters).

3. Impact Resistance:

a. ASTM Test Method: D2794. b. Performance Requirements: Impact Resistance over 60 inch lb. (Forward impact

using 0.625” ball).

4. Weathering Resistance:

a. ASTM Test Method: D822, D2244, D523 (60 degree Method). b. Performance Requirements: Weathering Resistance over 1,000 hours (Failure mode

is 60% loss of gloss or color variance of more than 3 delta-E color units).

5. Color and Gloss: Black


08/21 32 31 19 7

2.7 FABRICATION

A. Pickets, rails and posts shall be pre-cut to specified lengths. ForeRunner rails shall be pre- punched to accept pickets. Grommets shall be inserted into the pre-punched holes in the rail and pickets shall be inserted through the grommets so that pre-drilled picket holes align with the internal upper raceway of the ForeRunner rail (Note: This can best be accomplished by using an alignment template). Retaining rods shall be inserted into each ForeRunner rail so that they pass through the pre-drilled holes in each picket, thus completing the panel assembly. Panels to be preassembled by manufacturer.

B. Swing gates shall be fabricated using Echelon Forerunner rail material, 1.25” sq. by 1025” gate

ends, and 5/8” sq. by .050” pickets. All rail and upright intersections shall be joined by welding. All picket and rail intersections shall be joined by welding.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirements for site clearing, earthwork, pavement work, construction layout, and other conditions affecting performance of the Work.

B. Do not begin installation before final grading is completed unless otherwise permitted by

Architect.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Stake locations of fence lines, gates, and terminal posts. Do not exceed intervals of 500 feet (152.5 m) or line of sight between stakes. Indicate locations of utilities, lawn sprinkler system, underground structures, benchmarks, and property monuments.

3.3 DECORATIVE FENCE INSTALLATION

A. Install fences according to manufacturer's written instructions.

B. Install fences by setting posts as indicated and fastening rails to posts.

C. Post Excavation: Drill or hand-excavate holes for posts in firm, undisturbed soil. Excavate holes to a diameter of not less than 4 times post size and a depth of not less than 24 inches (600 mm) plus 3 inches (75 mm) for each foot (300 mm) or fraction of a foot (300 mm) that fence height exceeds 4 feet (1200 mm).

D. Post Setting: Set posts in concrete at indicated spacing into firm, undisturbed soil.

1. Verify that posts are set plumb, aligned, and at correct height and spacing, and hold in

position during setting with concrete or mechanical devices.


08/21 32 31 19 8

2. Concrete Fill: Place concrete around posts and vibrate or tamp for consolidation. Protect aboveground portion of posts from concrete splatter.

a. Concealed Concrete: Top 2 inches (50 mm) below grade as indicated on Drawings

to allow covering with surface material. Slope top surface of concrete to drain water away from post.

3. Posts Set in Concrete: Extend post to within 6 inches (150 mm) of specified excavation

depth, but not closer than 3 inches (75 mm) to bottom of concrete. 4. Space posts uniformly at 6 feet (1.83 m) o.c.

E. Fence panels rails shall be inserted into punched posts and affixed with fasteners.

3.4 FENCE INSTALLATION MAINTENANCE

A. When cutting/drilling rails or posts adhere to the following steps to seal the exposed surfaces; 1) Remove all metal shavings from cut area. 2) Apply custom finish paint matching fence color. Failure to seal exposed surfaces per steps 1 & 2 will negate warranty. Ameristar spray cans or paint pens shall be used to finish exposed surfaces; it is recommended that paint pens be used to prevent overspray. Use of non-Ameristar parts or components will negate the manufactures’ warranty.

3.5 GATE INSTALLATION

A. Install gates according to manufacturer's written instructions, level, plumb, and secure for full opening without interference. Attach hardware using tamper-resistant or concealed means. Install ground-set items in concrete for anchorage. Adjust hardware for smooth operation and lubricate where necessary.

3.6 GROUNDING AND BONDING

A. Fence Grounding: Install at maximum intervals of 1500 feet (450 m) except as follows:

1. Fences within 100 Feet (30 m) of Buildings, Structures, Walkways, and Roadways: Ground at maximum intervals of 750 feet (225 m).

a. Gates and Other Fence Openings: Ground fence on each side of opening.

1) Bond metal gates to gate posts.

B. Grounding Method: At each grounding location, drive a grounding rod vertically until the top is

6 inches (150 mm) below finished grade. Connect rod to fence with No. 6 AWG conductor. Connect conductor to each fence component at the grounding location.

C. Bonding Method for Gates: Connect bonding jumper between gate post and gate frame.

D. Connections: Make connections so possibility of galvanic action or electrolysis is minimized.

Select connectors, connection hardware, conductors, and connection methods so metals in direct contact will be galvanically compatible.


08/21 32 31 19 9

E. Bonding to Lightning-Protection System: If fence terminates at lightning-protected building or structure, ground the fence and bond the fence grounding conductor to lightning-protection down conductor or lightning-protection grounding conductor, complying with NFPA 780.


A. Grounding-Resistance Testing: Engage a qualified testing agency to perform tests and inspections.

1. Grounding-Resistance Tests: Subject completed grounding system to a megger test at each

grounding location. Measure grounding resistance not less than two full days after last trace of precipitation, without soil having been moistened by any means other than natural drainage or seepage and without chemical treatment or other artificial means of reducing natural grounding resistance. Perform tests by two-point method according to IEEE 81.

2. Excessive Grounding Resistance: If resistance to grounding exceeds specified value, notify Architect promptly. Include recommendations for reducing grounding resistance and a proposal to accomplish recommended work.

3. Report: Prepare test reports certified by a testing agency of grounding resistance at each test location. Include observations of weather and other phenomena that may affect test results.

3.8 ADJUSTING

A. Gates: Adjust gates to operate smoothly, easily, and quietly, free of binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding.

B. Lubricate hardware and other moving parts.

3.9 CLEANING

A. The contractor shall clean the jobsite of excess materials; post-hole excavations shall be scattered uniformly away from posts.

END OF SECTION 32 31 19


PAVEMENT MARKINGS 321723-1

SECTION 321723 - PAVEMENT MARKINGS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Painting and marking of pavements, curbs, guard posts, and light pole bases.

1.2 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. Publications are referenced within the text by the basic designation only.

B. American Association of State Highway and Transportation (AASHTO): 1. AASHTO M247 - Glass Beads Used in Traffic Paints 2. AASHTO M248 - Ready-Mixed White and Yellow Traffic Paints

C. ASTM International (ASTM): 1. ASTM D4414 - Standard Practice for Measurement of Wet Film Thickness by Notched Gauges.

D. Federal Specifications (FS): 1. FS A-A-2886 - Paint, Traffic, Solvent Based (supersedes FS TT-P-85 and FS TT-P-115, Type I) 2. FS TT-B-1325 - Beads (Glass Spheres) Retro-Reflective 3. FS TT-P-1952 - Paint, Traffic And Airfield Marking, Waterborne


A. Maintain access for vehicular and pedestrian traffic as required for other construction activities. Utilize flagmen, barricades, warning signs, and warning lights as required.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Paint shall be waterborne or solvent borne, colors as shown or specified herein. Pavement marking paints shall comply with applicable state and local laws enacted to ensure compliance with Federal Clean Air Standards. Paint materials shall conform to the restrictions of the local Air Pollution Control District.

B. Waterborne Paint: Paints shall conform to FS TT-P-1952.

C. Solvent Borne Paint: Paint shall conform to FS A-A-2886 or AASHTO M248. Paint shall be non-bleeding, quick-drying, and alkyd petroleum base paint suitable for traffic-bearing surface and be mixed in accordance with manufacturer’s instructions before application for colors White, Yellow, Blue, and Red.

D. Glass Beads: AASHTO M 247, Type 1 or FS TT-B-1325, Type 1, Gradation A.

PART 3 - EXECUTION



3.1 EXAMINATION

A. Examine the work area and correct conditions detrimental to timely and proper completion of the work. Do not proceed until unsatisfactory conditions are corrected.

3.2 PREPARATION

A. Sweep and clean surface to eliminate loose material and dust.

B. Where existing pavement markings are indicated on Construction Drawings to be removed or would in-terfere with adhesion of new paint, a motorized abrasive device shall be used to remove the markings. Equipment employed shall not damage existing paving or create surfaces hazardous to vehicle or pedes-trian traffic. Within public rights-of-way, appropriate governing authority shall approve method of marking removal.

C. New pavement surfaces shall be allowed to cure for not less than 30 days before application of marking materials.

3.3 APPLICATION

A. Apply two coats of same color of paint as specified below, at manufacturer's recommended rate, without addition of thinner, with maximum of 100 square feet per gallon or as required to provide a minimum wet film thickness of 15 mils and dry film thickness of 7 ½ mils per coat. Paint shall be applied for a to-tal dry film thickness of 15 mils. Apply with mechanical equipment to produce uniform straight edges. At sidewalk curbs and crosswalks, use straightedge to ensure uniform, clean, and straight stripe.

B. Install pavement markings according to manufacturer's recommended procedures for the specified mate-rial.

C. Following items shall be painted with colors noted below: 1. Pedestrian Crosswalks: White 2. Exterior Sidewalk Curbs and Guard posts: Yellow 3. Exterior Light Pole Bases: Yellow 4. Fire Lanes: Red or per local code 5. Lane Striping where separating traffic moving in opposite directions: Yellow 6. Lane Striping where separating traffic moving in the same direction: White 7. ADA Symbols: Blue or per local code 8. ADA parking space markings as shown on the drawings. 9. Parking Stall Striping: Yellow, unless otherwise noted on Construction Drawings

D. Apply glass beads at pedestrian crosswalk striping and at lane striping and arrows at driveways connect-ing to public streets. Broadcast glass beads uniformly into wet markings at a rate of 6 lb/gal.


A. Field quality control shall be the responsibility of the Contractor in accordance with Section 01452. Field quality control testing and inspection shall be at the discretion of the Contractor as necessary to assure compliance with Contract requirements.

3.5 CLEANING



A. Waste materials shall be removed at the end of each workday. Upon completion of the work, all con-tainers and debris shall be removed from the site. Paint spots upon adjacent surfaces shall be carefully removed by approved procedures that will not damage the surfaces and the entire job left clean and ac-ceptable.



STORM DRAINAGE 334100-1

SECTION 334100 – STORM DRAINAGE

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes 1. Storm sewer drainage piping, fittings, and accessories. 2. Storm drainage structures.

1.2 SUBMITTALS

A. Product Data: Provide data on pipe materials, pipe fittings, and accessories. Provide shop drawings for precast inlets and catch basins

B. Manufacturer's Certificate: Certify that products meet or exceed specified local requirements.

C. Project Record Documents: 1. Accurately record actual locations of pipe runs, connections, catch basins, cleanouts, and

invert elevations. 2. Identify and describe unexpected variations to subsoil conditions and location of

uncharted utilities.

PART 2 - PRODUCTS

2.1 PIPE AND FITTINGS

A. Reinforced Concrete Pipe (RCP): ASTM C76, Class III unless noted otherwise on Drawings, installed with flexible plastic, bitumen gaskets at joints. 1. Gaskets: AASHTO M198, Type B or ASTM C443, installed in accordance with

manufacturer’s recommendations. 2. Flared End Sections: ASTM C76, or for sections with toe wall, AASHTO H170.

B. All High Density Polyethylene pipe (HDPE) shall conform to the following requirements: 1. AASHTO M252 Type S and M294 Type S, smooth interior and annular exterior. Pipe shall

be installed in accordance with pipe manufacture’s installation guidelines. 2. Joint and Fittings. Pipe joints and fittings shall conform to ASTM D3212, AASHTO

M252 or AASHTO M294, or be approved by the engineer. All joints and fittings to be water tight.

HDPE pipe shall not be used under paved areas.

2.2 DRAINAGE STRUCTURES

A. Catch Basins, Inlets, and Junction Boxes: Provide in accordance with details shown on Drawings and ASTM C-478.

B. Lids and Frame: Provide in accordance with details shown on Drawings. 1. Acceptable Manufacturers:



a. Neenah Foundry. b. East Jordan Iron Works. c. Bass & Hays Foundry.

C. Cement Mortar used for paving inverts, filling lift holes, joints, patching and anchoring castings shall consist of one part Portland cement, type I, ASTM C150, 1/4 part hydrated lime, ASTM C206 and 2-1/2 parts clean, well-graded sand and water free of suspended matter, alkali, and containing no industrial or domestic waste.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that trench cut and excavation is ready to receive work and excavations, dimensions, and elevations are as indicated on Drawings.

3.2 PREPARATION

A. Hand trim excavations to required elevations. Correct over-excavation with bedding material.

B. Remove large stones or other hard matter that could damage piping or impede consistent backfilling or compaction.

C. Protect benchmarks, property corners, and other survey monuments from damage or displacement. If marker needs to be removed it shall be referenced by licensed land surveyor and replaced, as necessary, by same.

3.3 INSTALLATION - PIPE

A. The pipe shall be inspected for defects and cracks before being lowered into the trench, piece by piece. Any defective, damaged or unsound pipe or any pipe that has had its grade disturbed after laying shall be taken up and replaced. Open ends shall be protected with a stopper to prevent earth or other material from entering the pipe during construction. The interior of the pipe shall be free from dirt, excess water and other foreign materials as the pipe laying progresses and left clean at the completion of the installation.

B. Excavate pipe trench and place bedding material in accordance with specifications.

C. Install pipe in accordance with manufacturer’s written recommendations.

D. Reinforced Concrete Pipe: Pipe shall be installed in accordance with pipe manufacturer's installation Guidelines for Culvert Storm Drainage Applications.

E. Installation shall commence at the lowest point for each segment of the route.

F. Lay pipe to the required line and slope gradients with the necessary fittings, inlets, risers, structures, and other appurtenances placed at the required location as noted on Drawings.

G. Do not displace or damage pipe when compacting.



H. No pipe shall be laid in water or when trench conditions are unsuitable for such work.

I. Joints: 1. Joints shall be constructed as described herein and in accordance with manufacturer’s

installation instructions for soiltight joints. 2. For RCP, the joint surface shall be cleaned and washed with water, if necessary, before

the joints are made. For tongue and groove joints in smaller sizes, make joints butting the inside of the bell with a cement mortar before joining. The inside joint shall be wiped clean of excess mortar by brush or a squeegee drawn through the pipe as the laying operations progress. In the lager diameters, which permit the entry of a man, annular space between pipe sections shall be completely filled with mortar and finished off smooth with the inside surface of the pipe.

J. All installation shall be in compliance with ASTM C1479.

3.4 INSTALLATION – CATCH BASINS, INLETS, AND JUNCTION BOXES

A. Drainage structures shall be constructed in accordance with details shown on drawings.

B. Precast Sections: 1. Precast section with bases shall be installed in accordance with specifications or as shown

on drawings. 2. Pipe shall be properly aligned with connections to structures as shown on the drawings.

C. Invert channels shall be smooth and accurately shaped to a semicircular bottom conforming to the inside of the adjacent sewer section. Invert channels and structure bottoms shall be shaped with cement mortar. Changes in size and grade of invert shall be made gradually and evenly. Changes in direction of the sewer entering branch or branches shall have a true curve of as large a radius as the manhole will permit.

D. Frames and Covers: 1. Frames and covers shall be set to the proper elevation. The frames shall be firmly

embedded in mortar approximately 1 inch thick and aligned to fit the top section of the structure.

2. Bricks set in mortar used to adjust the frame to finished grade shall be limited to no more than four courses.

3. Adjustment rings used to make adjustments in grade shall be made with the initial ring embedded in mortar and the exterior of the rings parged with mortar not less than 1/2 inch thick. No adjustment made in this manner shall exceed 8 inches.

3.5 INSPECTION AND TESTING

A. General: 1. Strom sewer systems and culverts, upon completion or at such time as directed, shall be

cleaned, inspected and tested. The system or culvert shall have a true grade and line. Actual elevations shall be within 0.08 feet of the elevations given on the drawings.

2. After completion of the Work, or any part thereof, the job shall be tested to determine that it has been installed in accordance with the drawings and specifications. In general, the Work shall prove to be in good condition, installed in accordance with the drawings and specifications and ready for use.



B. Cleaning and Testing: Visibly inspect and remove all debris and obstructions from storm pipe. Test for infiltration and exfiltration by hydrostatic testing per ASTM C969. Manholes and pipe shall conform to ASTM C969 leakage criteria.

C. Alignment Test: After backfill has been placed and compacted to a depth not less than one foot above top of pipe, a visual inspection shall be made by flashing a light between manholes. Any displacement or misalignment of invert shall be corrected.



SANITARY SEWER SYSTEM 335100-1

SECTION 335100 - SANITARY SEWER COLLECTION SYSTEM MATERIALS

PART 1 - GENERAL

Materials for use at any location in the Sanitary Sewer system (extensions or existing) shall meet the requirements as set forth in the following Articles under this Section, or as noted and/or detailed on the project plans. PART 2 – PIPE, PIPE JOINTS AND FITTINGS 2.1 GRAVITY SEWER

A. Rigid Plastic Pipe, Joints and Fittings: Pipe for use under this heading shall be of the bell and spigot type. All pipe and materials shall be made from P.V.C. components in accordance with A.S.T.M. specification D1784 for rigid polyvinyl chloride compounds. The pipe bell shall be an integral part of the pipe barrel. The spigot end of each pipe length shall be beveled to permit making up the joint. All pipe spigot ends shall be marked to show full make-up joint depth. All pipe shall meet or exceed the strength requirements when tested in accordance with A.S.T.M. specification D3034.

1. Pipe Joint: All pipe shall be joined by means of a rubber ring slip joint. Cement weld or

glued joints will not be permitted. The slip joint shall be formed by a bell joint. The bell joint where used, shall be an integral and homogenous part of the pipe formed by extrusion, with a ring groove for seating the rubber ring gasket. The rubber ring gasket shall be partially split or perforated to permit expansion and contraction with respective increased or decreased pressure in the main.

2. Pipe Fittings: Lateral service line connected to the sewer main shall be made with wye type fittings inserted in the sewer main piping. Service laterals shall be installed as shown on the plans, or as directed. Each service lateral or wye shall terminate with a rubber faced expander plug to fully seal the open pipe end until same is required for service. Pipe fitting materials shall be the same as that specified for the piping materials. All fitting joints shall be sealed using rubber ring gaskets as previously specified.

All gravity sanitary sewer main and lateral service lines shall be SDR 35 and shall be supplied in 13 feet (minimum) lengths.

PART 3 - MANHOLES 3.1 MANHOLES

A. Pre-Cast Manholes: Pre-cast manhole straight sections with eccentric top or cone sections may be used for manhole construction. Bottom sections, with properly located inlet and invert openings sized for sewer main as required, may be used. As will be noted from the plant profile segments, most manholes are designed for two tenths (0.2) foot of fall across the manhole. All manhole sections shall be fitted with, or provided with rubber coated manhole steps. Concrete for all pre-cast manhole sections shall be designed of ingredients that will



produce a minimum 3,500 psi. compressive strength at 28 days. All sections shall be fully reinforced with welded wire fabric.

B. Manhole Frames and Covers: Shall be of the type and duty as shown on the manhole plans. Iron castings shall conform to the latest revisions of ASTM and specification A-48, Class 20. All castings for use shall be true to pattern in form and dimensions, free from faults, sponginess, cracks, blowholes, and other defects. The bearing surfaces, between frames and covers, shall be machined, fitted together, and match marked, to prevent rocking.

PART 4 – PIPE BEDDING 4.1 Materials to be used for this purpose shall consist of fine, clean, durable particles of crushed

stone. Crushed stone used for this purpose shall consist of materials passing a 1-inch sieve to dust or as noted on the construction drawings.

PART 7 – CONNECTION TO PRESENT SYSTEM 7.1 MATERIALS

A. Materials to be used for connections to the present system shall be in accordance with the preceding Articles as applicable, under this Section of these specifications. Installation and testing of all items shall be in strict accordance with the following Section of these specifications. Under all circumstances, extreme care must be exercised when connecting to the present system. Foreign materials of whatever nature, must not be permitted to enter the system.

B. The Contractor shall notify the Owner prior to connection so that proper notification to those

affected may be provided. Where system segment shut-down is required, the actual shut-down is not to be done until all connection materials, equipment, and personnel are at the site, and the existing system point of connection has been exposed, thoroughly cleaned, and prepared for immediate installation of the connection materials. All personnel shall be thoroughly instructed as to the procedure to be followed and ready for work. All connections are then to be made in an efficient manner requiring the least amount of time and maximum amount of care.

C. Existing manholes shall be core bored or provided with a smooth cut for connection of new

mains or services. The pipe to base connection shall be made using a rubber gasket around the pipe barrel with sufficient flap to act as a water stop when sealed in the socket or hole filler grout. An asphaltic-fibre cement shall be used over the joint connection around the full pipe diameter, after the filler grout has hardened. Concrete for additional support of the connecting sewer main, shall be placed under the piping adjacent to the manhole base.

PART 9 – CONCRETE FOR PIPE ENCASEMENT AND/OR SUPPORT



Concrete to be used for pipe encasement and support shall consist of ingredients designed to produce a mixture having a 3,500 psi., compressive strength at 28 days curing time. The mix shall be as “dry” as possible using only sufficient water to permit mixing and placement. Excessive water will not be permitted. Cement for use shall be the “high early” type to provide initial set as soon as possible. Concrete may be placed and covered with earth fill to prevent freezing during periods of cold weather. However, frozen ingredients will not be permitted for use. All concrete used and placed for this purpose shall be given at least three (3) days curing time before being placed under stress.



SANITARY SEWER COLLECTION SYSTEM INSTALLATION

PART 1 – GENERAL

1.1 Underground pipe construction shall be in accordance with the recommended practice as outlined by the pipe manufacturer.

1.2 All excavations shall be made to such depths and widths as will give ample room for building all structures, sewers, and appurtenances as detailed on the approved plans.

1.3 Clearing and grubbing the site of work, excavation of earth or other materials, sheeting and bracing, pumping and drainage, backfilling, rough grading, and cleaning up shall all be done as specified. In addition, all work maintaining or replacing existing fences, roadways, drives, lawns or structures disturbed by the work, safety precautions and other miscellaneous general work not specified under specific items is to be included in the work done under this section.

PART 2 - SITE AND WORK PREPARATION 2.1 Prior to starting the various installations, connections, and/or changes as required the contractor

shall notify the Owner a minimum of twenty-four (24) hours prior to the start of construction. After so doing, the Contractor shall clear the route of all trees, shrubs, and other objects or materials which may directly interfere with the construction. All other utility companies or organizations shall be notified for location of their respective facilities prior to starting any work. All trees, shrubs, bushes, etc., which will not interfere with the construction shall be protected from damage. Work preparations shall include having all necessary material items, equipment, and an adequate labor force at the site in working condition, and completely instructed and prepared to perform the work to completion as required.

PAR 3 - DRAINAGE 3.1 The Contractor shall control the grading in the vicinity of the pipe trenches so that the surface of

the ground will be properly sloped to prevent water from running into the excavated areas. Any water or other liquid wastes which accumulate in the excavated areas shall be promptly removed.

PART 4 - TRENCH EXCAVATION 4.1 Contractor shall perform all excavation necessary for or incidental to the proper installation and

construction of the work shown and detailed on the drawings, or as directed by the Engineer. Excavation shall include the removal of trees, shrubs, paving, and undesirable materials. Excavation shall be done along the lines as staked, and indicated on the plans and shall be continuous without improper bends or kinks. Trenches shall be of sufficient width to provide a working space on each side of the materials being installed. During excavation, materials to be used for backfill shall be stock piled, in an orderly manner, a sufficient distance from the edge of the excavation to avoid overloading which might cause slides of cave-ins, and in such manner so as not to interfere with public travel whenever possible. The contractor shall provide all barricades, lights, temporary crossing, warning signs, etc., that may be necessary to protect the public and the work from injury or damage.

4.2 Trenches for sewer main and appurtenances shall be excavated to a sufficient depth to obtain a

minimum of thirty-six (36) inches of cover over the top of the pipe, except as otherwise required to make taps and connections to existing mains. All excavation shall be made so as to provide a



continuous bearing for the barrel of the pipe. Holes of sufficient size shall be excavated to permit ample room for making joints. The bottom of trenches shall be free from rocks, clods, debris, and all other unsuitable materials, and shall consist of properly shaped earth, or tamped granular material as specified in the previous Section of the specifications. The Contractor shall take care not to excavate below grade except to remove undesirable material, or as directed by the Engineer.

4.3 Where rock is encountered in the trenching operation, the excavation shall be carried to a depth of

four (4) inches below the pipe bottom depth assuming proper cover as specified under the preceding paragraph. Where solid rock is encountered and it is necessary to drill and blast same, the Contractor shall provide all suitable equipment and personnel for carrying out the operation in a safe and sensible manner. The Contractor’s Insurance shall include specific coverage for this and directly or indirectly related items.

4.4 When encountered, the Contractor shall strip from the solid rock areas all overlying earth in

sections and shall then notify the Engineer for inspection and measurement. The Engineer may then take levels on the surface of the rock and adjacent ground level, or he may at his discretion, defer the measurement until after excavation is completed. In any event, the Contractor shall not refill any trench where rock is encountered until told to do so by the Engineer or his agent. The rock volume, using lengths and depths as measured in the field, shall be determined on the basis of using a two (2) foot trench width. The Contractor will not be allowed payment for any rock claimed unless same has been measured as herein provided.’

4.5 Excess materials resulting from the rock excavations shall be spread over or adjacent to the trench

area where acceptable, or shall be picked up and removed from the site for disposal at a suitable location. It may also be necessary to place a thin layer of earth over the rock backfill areas. This may be hauled in from a stockpile location. This earth layer must be of sufficient depth to support the growth of vegetation. All loose rock and debris shall be thoroughly cleaned up and disposed of. The excavated areas shall be left in a neat, clean, acceptable condition.

PART 5 - HANDLING OF MATERIALS 5.1 All pipe, fittings, valves, manholes and other accessories, shall be unloaded, stored rehandled,

and installed by methods and in such a manner as to insure their final location in a sound and undamaged condition, conforming in all respects to specified requirements. Under no circumstances shall pipe, fittings, valves, manholes, or other accessories, be dropped to the ground, or otherwise subjected to possible damage from impact or shock. Such materials shall be loaded by lifting with machine or hoist, or by skidding,. Pipe handled on skidways shall not be skidded or rolled against other pipe. When pipe line materials at the site of the work, each piece shall be unloaded opposite, or as close as possible to the point of installation in order to avoid unnecessary rehandling.

5.2 Under all circumstances, all materials for use shall be handled in a workman-like manner, using

the necessary manpower and equipment to perform the task in accordance with the manufacturer’s recommendations.

A. Protection of Materials, Coatings, and/or Linings: All materials shall be handled in such

manner that neither the coatings or the linings will be damaged. Hooks for insertion into the ends of the pipes, fittings, valves, manholes, and other accessories, shall have broad, well-padded contact surfaces, and shall be of such design and size that uniform support will be



provided. Under most circumstances, damage to outside coatings are repairable, and the necessary repairs shall be properly made prior to installation. Damage to interior linings are not considered repairable, and therefore, the damaged item shall be replaced at the Contractors expense.

B. Handling Materials Into Trench: Proper equipment, tools, facilities, and methods satisfactory

to the Engineer, shall be provided and used by the Contractor for the safe handling of all materials. Fittings, valves, and other accessories shall be carefully lowered into the trench or excavation, piece to protect coatings and linings. Under no circumstances shall any materials be dropped or dumped into the trench.

PART 6 - PIPE LAYING AND TRENCH BACKFILL 6.1 GENERAL

A. Installation shall start at the downstream end of the project and shall proceed upstream. All pipe spigot ends shall face downstream and bell ends shall face upstream. Laying of the pipe shall commence immediately after the excavation is started, and the Contractor shall use every possible means to keep the completed pipe installation closely behind the trenching. The Engineer may stop the trenching when in his opinion, the trench is open too far in advance of the pipe laying operation. The Contractor may lay pipe in the best manner adapted to securing speed and good results.

6.2 PIPE JOINTS

A. The Contractor shall have the necessary equipment and tools available for making the joints for the specific materials being used. In accordance with applicable items under the previous Section of these specifications, acceptable joints for the various pipe line and fitting materials are listed as follows:

1. P.V.C. Pipe: Ring title joint with necessary transition gaskets for connection to mechanical

joint fittings, valves, and adapters.

a. Pipe Joint Adapters: The Contractor shall provide the necessary adapters for all connection changes from ring-title, slip, or mechanical joint to flanged joint as and where required.

All pipe spigot ends shall be visibly marked to fully “make-up” the joint. With exception of field cut pipe, all “make-up” marks shall be placed on the pipe at the factory. Field cut pipe shall be marked for full joint depth prior to insertion.

6.3 PIPE CUTTING

A. Cutting of pipe for closure pieces with installation of valves or fittings, or for any other reason, shall be done in a neat and workman-like manner without damage to the pipe or linings. The cutting operation shall leave a smooth cut end at right angles to the longitudinal axis of the pipe. The exterior surface of the cut end shall be beveled, and the interior surface shall be reamed or filed free of all rough edges and protrusions. All pipe cutting shall be done by saw or mechanical pipe cutters of an approved type. Upon completion of the cutting and trimming operation, the



pipe end or ends shall be marked for “make-up” depth. Prior to insertion, the pipe shall be thoroughly cleaned of all foreign materials, including filing and cutting debris.

6.4 PIPE ALIGNMENT

A. Pipe lines intended to be straight shall be laid straight. Deflections from a straight line shall not exceed the manufacturers recommendations for joint deflections. Should the planned or specified alignment require deflections in excess of the maximum recommended for the type of pipe being installed, when using a standard pipe length within the limits of available space, then either shorter pipe sections, or additional bends shall be installed.

6.5 EXISTING UTILITIES

A. Existing utilities shall be protected during the construction period. Where necessary, the existing utility shall be removed or temporarily relocated, and replaced upon completion of that phase of the work creating this requirement. Under all circumstances, the utility involved and the parties being affected by the disrupted service shall be notified in advance of the proposed operation. All changes and work shall be subject to the approval and acceptance of the utility involved and the Engineer.

6.6 QUALITY

A. Damaged or unsound pipe, fittings, and accessories of whatever nature shall be rejected and removed from the work. All joints shall be made as previously specified. Each piece of pipe and all fittings, valves, etc., shall be checked and cleared of debris prior to being put in place. All gaskets shall be rechecked for operation and bolt tightness prior to installation. All open ends of pipe, fittings, etc., shall be carefully plugged or sealed at the end of each days work to prevent entrance of animals, water, and other foreign matter. All excavation shall be made to neat line and grade.

All personnel involved in any way with the work must be made aware of the fact that the work shall result in a first-class, professional job.

6.7 TRENCH BACKFILL

A. After placing the piping in the trench, the Contractor shall backfill under and around the pipe

simultaneously filling and tamping on both sides with sufficient earth to firmly hold the pipe in position. Extreme care must be exercised with the backfill operations to insure that no sizable stones or rocks come into contact with the pipe surfaces. After carefully placing and tamping the initial backfill in place to at least six (6) inches over the top of the pipe barrel, the remaining materials may be pushed into the trench. No boulders, broken pavement, or large pieces of blasted rock shall be used in the trench backfill. Any trench improperly bedded or backfilled shall be excavated, examined, and replaced at the Contractor’s expense. All non-usable materials shall be picked up and removed form the site to an acceptable disposal location. Upon completion of the initial backfill, the backfill surface shall be neatly mounded to allow for settlement. As the work progresses and settlement occurs, the trenching surface shall continue to be graded and shaped so as to secure a final condition where no further settlement shall occur.

B. In areas where pavement or permanent surfacing is removed and is to be replaced, the entire backfill shall be made using fine crushed stone placed in six (6) inch layers and compacted to a maximum density.



C. Initial clean-up, in accordance with Article 14 shall occur as the trench backfill operation

proceeds. Before final acceptance of the work is made, the Contractor shall travel the lines with the Engineer, and any settlement or unsightly areas shall be repaired or corrected as directed. Upon acceptance, the Contractor shall proceed with the final clean-up, grading, and seeding operation, in accordance with Article 15 this Section of the specifications.

PART 7 – SERVICE LINE WYE INSTALLATION The Contractor shall furnish all materials and install service connection fittings and service lines as required.

A. Sewer Main Service Line Connection Fittings: Fittings for service line connection to the sanitary sewer main shall be placed where indicated in the field by the Engineer. All service connection fittings shall be wye or double wye fittings in accordance with Article 2 of Section III of the specifications. All service connection fitting joints shall be watertight and of a quality equal to that of the sanitary main being used.

B. Sewer Lateral Service Line: The Contractor shall furnish all materials and install sewer lateral service lines from connection to the sewer main wye fitting as shown on the plans.

All service lines and wye installed for future connections shall terminate with a rubber faced threaded compression type expanded plug. All service line and fittings shall be in accordance with Article 2 of Section III of the specifications. PART 8 – MANHOLE INSTALLATION 8.1 BASE

A. Pre-cast manhole base sections shall be set on the prepared sub-grade in proper alignment for connection to the inlet and discharge connections. In the event fill under the base section is required to achieve the proper grade, it shall be made using a 1 inch minus crushed stone fill, fully compacted to sub-grade. Earth fill under pre-cast base sections will not be permitted.

1. Pipe Connections: Sewer main connections to the manhole base shall be made prior to

placement of the manhole barrel sections. The pipe to base connection shall be made using a rubber gasket around the pipe barrel with sufficient flap to act as a water stop when sealed in the socket or hole filler grout. An asphaltic-fibre cement shall be used over the joint connection around the full pipe diameter, after the filler grout has hardened. Concrete for additional support of the connecting sewer main, shall be placed under the piping adjacent to the manhole base.

8.2 BARREL

A. The manhole barrel shall be set on the pre-cast base. The barrel shall be constructed of pre-cast sections as previously specified.

1. Pre-Cast Sections: The barrel to base joint shall be sealed using the rubber ring provided for

this purpose when placing same over a pre-cast base section. The remaining seam shall be sealed using an asphaltic-fibre cement on the interior and exterior joint locations. All



remaining barrel joints and top or cone to barrel joint connection, shall be sealed using the rubber gasket and asphaltic-fibre cement application. The entire exterior of the manhole shall be coated with asphaltic-fibre cement to achieve a water-tight seal. An eccentric pre-cast top or cone section shall be placed over the manhole barrel sections. The top to barrel joint seal shall be made as previously specified for pre-cast section joints. All manhole steps shall be in alignment with the vertical wall of the manhole. The top of the cone section shall provide a 24-inch diameter circular opening.

8.3 MANHOLE COMPLETION

A. Upon completion of the manhole barrel construction, all debris shall be removed from the excavated area and disposed of. Following clean up; the excavated area shall be backfilled with clean earth. Care must be exercised to maintain the manhole barrel joints in a scaled condition. The backfill may be carefully jetted with water to achieve initial settlement. Following initial settlement, the top of the manhole cover frame shall then be set in place using the frame lugs to center the frame over the opening. It is intended that the frame to top of cone seal shall be watertight. The manhole cover shall then be put in place. Following placement of the manhole frame and cover, the backfill operation shall proceed to the top of the manhole frame and cover.

All backfill operations shall be in accordance with the applicable Articles of the specifications. All manhole construction, frame and cover, etc., shall be in accordance with the plan details and notations. PART 12 – TESTING OF GRAVITY SEWERS The extent of testing shall be at the discretion of the owner and engineer and paid for by the contractor. 12.1 GENERAL

After construction and backfilling are completed and before any services are connected the sewers, the completed lines shall be tested for leaks, and visually checked for straightness of line and cracked pipe. If any deficiencies in line or grade are found which will be detrimental to the proper functioning of the sewer, the deficiencies shall be corrected. Any damaged or cracked pipe shall be excavated and re-laid in a manner satisfactory to the Owner. Any section of sewer, which is found to be leaking in excess of the allowable quantity, shall be repaired.

12.2 ACCEPTANCE TESTS

A. Each reach of sewer shall meet the requirements of the following shall be repaired to the

satisfaction of the Owner.

1. Upon completion of the sewers, acceptance tests will be conducted by the Contractor in the presence of the Engineer to determine the acceptability of the sewers. The testing schedule shall be submitted to the Engineer by the Contractor prior to testing. The Contractor shall furnish suitable test equipment, materials and manpower to conduct the test.

2. All completed pipe sewers shall be subject to an exfiltration test. The sewer pipe shall sustain a maximum limit of 200 gallons per inch of diameter per day per mile. The exfiltration test shall cover a period of at least four continuous and connective hours. For purposes of



determining maximum allowable leakage, manholes shall be considered a section of 48-inch pipe.

3. No ground water in an amount greater than that allowed and specified herein for the

exfiltration test shall be permitted. 4. Any completed pipe sewers not conforming to the tests herein specified or conforming to all

requirements of the specifications, plans and profiles, or subject to any irregularity of construction shall be removed and replaced.

5. The Contractor shall cooperate fully with the Engineer for the inspection and testing of the

completed work. 6. Stoppers and/or plugs for the various sizes of pipe shall be furnished by the Contractor for

use in the tests and personnel shall be made available by the Contractor for aid in conducting the tests herein specified.

7. As an alternate to the exfiltration test, a low-pressure air test may be conducted after

backfilling and before replacing pavement. The equipment shall be provided and tests shall be conducted by the Contractor in the presence of the Engineer.

8. The Contractor may desire to make an air test prior to backfill for his own purpose, but

“Acceptance Test” shall be conducted after backfill. 9. All wyes, tees or ends of lateral or service stubs shall be suitably capped to withstand the

internal pressure during testing. Such caps shall be easily removable for future connections or extensions.

10. After each manhole-to-manhole section of line has been backfilled and cleaned, the ends shall

be plugged with pneumatic plugs. These plugs shall be designed such that they will hold against line test pressure without requiring blocking or bracing. All pneumatic plugs shall pass a qualifying test in the presence of the Engineer before actual line testing as follows: One length of pipe shall be laid on the ground and sealed at both ends with the pneumatic plugs being tested. Air shall be introduced into the pipe until the pipe pressure reaches 15 psi. The pneumatic plugs shall hold against this pressure without bracing and movement of the plugs.

11. Air for inflation of the triple connection pneumatic plug shall be supplied through a factory-

equipped control panel. There shall be three hose connections from the control panel to the triple connection pneumatic plug. One hose shall be used only for inflation of the pneumatic plug. The second hose shall be used for continuously reading the air pressure rise in the sealed line.

12. There shall be a 3 ½” diameter, 0-30 psig gauge mounted on the control panel for reading the

internal pressure of the line being tested. Calibrations from the o-10 psig range shall be in tenths of pounds (not ounces) and this 0-10 portion shall cover 90% of the completed dial range.

13. Low pressure air shall be introduced into the sealed line until the internal air pressure reaches

4.0 psig greater than the average back pressure of any ground water pressures that may be



over the pipe. At least two minutes shall be allowed for the air pressure to stabilize. After the stabilization period, the third hose shall be quickly disconnected from the control panel.

14. The portion of line being tested shall be accepted if the portion under test does not lose air at

a rate greater than 0.0015 cfm per square foot of internal pipe surface when tested at an average pressure of 3.0 psig greater than any back pressure exerted by ground water that may be over the pipe at the time of the test.

15. The above requirement shall be accomplished by performing the test as follows. The time

required in minutes for the pressure to decrease from 3.5 to 2.5 psig (greater than the average back pressure of any ground water that may be over the pipe) shall not be less than the time shown for the given diameters in the following table (See Table 3 this Section):

TABLE 3

PIPE DIAMETER INCHES

MINIMUM TIME MN: SEC

LENGTH FOR MINIMUM TIME

FEET

TIME FOR LONGER LENGTHS

SECONDS 4 3:46 597 3.380 L 6 5:40 398 0.654 L 8 7:34 298 1.520 L 10 9:25 239 2.374 L 12 11:20 189 3.418 L 15 14:10 159 5.342 L 18 17:00 133 7.692 L 21 19:50 114 10.470 L 24 22:40 99 13.574 L 27 25:30 88 17.306 L 30 28:20 80 21.366 L 33 31:10 72 25.852 L 36 34:00 66 30.768

16. In areas where ground water is known to exist, the Contractor shall install a ½” diameter

capped pipe nipple, approximately 10 inches long, through the manhole wall on top of on one of the sewer lines entering the manhole. This shall be done at the time the sewer line is installed. Immediately prior to the performance of the line acceptance test, the ground water level shall be determined by removing the pipe cap, blowing air through the pipe nipple into the ground so as to clear it, and then connecting a clear plastic tube to the pipe nipple. The hose shall be held vertically and a measurement of the height in feet of water shall be taken after the water stops rising in this plastic tube. The height in feet shall be divided by 2.3 to establish the pounds of pressure that will be added to readings.

17. If the installation fails to meet this requirement, the Contractor shall determine at his own expense the source of the leakage. He shall repair or replace all defective materials and/or workmanship. The use of sewer scaling materials and methods shall not be used or accepted.

18. There shall be no substitute for good construction. The replacement of any pipes, pipe or

fraction thereof shall require the end connections to be made with factory manufactured pieces having flexible gasketed joints to fit intended use. The use of half bell pipe and/or



concrete collar will not be acceptable. Test shall be repeated as often as necessary until the installation meets the requirements of the acceptance test.

19. Pipe Deflection: Each segment of P.V.C. sewer main shall be tested for deflection. The test

shall consist of pulling a mandrel through each segment of P.V.C. pipe. The mandrel shall be an object having a cross-section, or same shall be a ball, having a diameter equal to 95% of the nominal pipe inside diameter. A steel cable of adequate known length and strength characteristics, shall be used to pull the mandrel through the piping. In the event of a failure, the failure location shall be found by measurement and the piping shall be repaired or replaced as required. After failure correction, the segment shall be re-tested. This process shall be repeated as often as necessary.

It is recommended that the test for deflection precede the test for infiltration and exfiltration. The Contractor shall furnish all equipment as required to perform all testing as specified. All tests shall be conducted in the presence of the Engineer.

20. After completion of aforementioned testing, each manhole shall be subjected to any

exfiltration test. The manhole to be tested shall be isolated from the sewer lines by installing pneumatic plugs in the sewer lines using the same procedure as for air testing, except that the plugs shall be installed in such a manner that there is a clear distance of at least 18” between the inside face of the manhole and the face of the plug. The manhole shall be tested by one of the two methods discussed below.

12.3 WATER TEST

The manhole shall then be filled completely with water. Depth of water shall be at least 3’ above ground water. A liquid level measurement shall be made and recorded after initial filling and 15 and 30 minutes thereafter. The test is acceptable when the water loss observed is less than 0.1 gallon/foot diameter/foot head/hour. Addition of water during the testing shall not be allowed.

12.4 VACUUM TEST

All lift holes and any pipes entering the manhole are to be plugged. A vacuum will be drawn and the vacuum drop over a specified time period is used to determine the acceptability of the manhole. The values recorded are applicable only to the manhole being tested and at the time of testing. The test results will be greatly affected by the preparation of the manhole. All lift holes shall be plugged completely. All pipes entering the manhole shall be temporarily plugged, taking care to securely brace the pipes and plugs to prevent them from being drawn into the manhole. A. Procedure

1. The test head shall be placed at the top of the manhole in accordance with the

manufacturer’s recommendations. 2. A vacuum of 10 in. of mercury shall be drawn on the manhole, the valve on the vacuum

line of the test head closed, and the vacuum pump shut off. The time shall be measured for the vacuum to drop to 9 in. of mercury.



3. The manhole shall pass if the time for the vacuum reading to drop from 10 in. of mercury to 9 in. of mercury meets or exceeds the values indicated in Table 1.

4. If the manhole fails the initial test, necessary repairs shall be made by an approved

method. The manhole shall then be retested until a satisfactory test is obtained. Minimum Test Times for Various Manhole Diameters – Vacuum Test – Table 1

Depth (ft)

Diameter (Inches) 30 33 36 42 48 54 60 66 72

Times (Seconds) 8 11 12 14 17 20 23 26 29 33

10 14 15 18 21 25 29 33 36 41 12 17 18 21 25 30 35 39 43 49 14 20 21 25 30 35 41 48 51 57 18 22 24 30 34 40 45 52 58 67 18 25 27 32 35 45 52 58 65 73 20 28 30 35 42 50 53 65 72 81 22 31 33 39 45 55 54 72 79 89 24 33 36 42 51 59 64 78 87 97 26 38 39 46 55 64 75 85 94 105 28 39 42 49 59 69 81 91 101 113 30 42 45 53 63 74 87 98 108 121

21. All sewer pipes shall be flushed to remove any debris, sand or grit from the completed sewers

prior to being placed in service. The Contractor shall flush and pump or remove all water from the flushing process.

22. Each section of the sewer line between manholes is required to be straight and uniformly graded. Each section will be lamped in the presence of the Engineer.

PART 13 – INITIAL CLEAN UP, GRADING, AND REPLACEMENT The Contractor shall provide the necessary labor and equipment to permit initial clean up as the sewer main is being installed. Immediately following trench backfill, all areas disturbed by excavation shall be graded to conform to the adjacent ground levels. Earth shall be neatly mounded over the trench location. All debris, of whatever nature, due to the sewer main and service installation, shall be picked up and disposed of. All walks, driveways, roads, streets, etc., shall be replaced to original condition. PART 14 – FINAL CLEAN UP, FINISH GRADING, SEEDING, AND STRAW Following completion of the various routes and initial trench settlement, the Contractor shall go over the routes and clean-up all remaining debris. Following completion of the final clean up, all areas in any way disturbed by the installation shall be graded to conform to the adjacent ground areas. After final grading, the graded areas shall be seeded and covered with straw. In areas of rock excavation, it will be necessary to place a four inch layer of earth over the exposed areas to form a seed bed for vegetation. The earth shall be applied as part of the final grading operation.



PART 15 – GUARANTEE The Contractor shall guarantee all materials and workmanship in any way involved with this project for a period of one year from the date of final acceptance. Date of final acceptance is hereby defined as being the date on which the Board of Directors accepts the improvements. END OF SECTION 335100

HORN ARCHITECTS

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