SPECIFICATION - Anthem Homests.construct-ltd.co.nz/uploads/tenderdocs/Poets Corner Structural... ·...

SPECIFICATION of work to be done and materials to be used in carrying out the works shown on the accompanying drawings

Bldg A, Poets' Corner, 5 Crossroads, Hamilton

Bird Plant and Equipment Trust Job Number: IZ086900 Date: 19th May 2017

© CIL Masterspec 2017 1012 TABLE OF CONTENTS

1012 TABLE OF CONTENTS 1012 TABLE OF CONTENTS .......................................................................................................2

1013 DOCUMENT CONTROL ......................................................................................................3

2221 REMOVING VEGETATION .................................................................................................4

2223 REMOVING SUBSURFACE CONSTRUCTIONS ...............................................................5

2242 BACKFILLING ......................................................................................................................7

2361 STRIP FOOTINGS .............................................................. Error! Bookmark not defined. 3101 CONCRETE WORK - BASIC ............................................................................................ 10

3105 CONCRETE - COMMON REQUIREMENTS .................................................................... 15

3106 CONCRETE QUALITY CONTROL ................................................................................... 18

3111 FORMWORK FOR CONCRETE ...................................................................................... 24

3112 REINFORCEMENT FOR CONCRETE ............................................................................. 28

3121 CONCRETE PLACEMENT ............................................................................................... 31

3124 FINISHES TO WET CONCRETE ..................................................................................... 35

3131 PRECAST CONCRETE PANEL SUPPLY ........................................................................ 39

3141 PRECAST CONCRETE PANEL INSTALLATION ............................................................ 43

3181CC CANZAC CONCRETE ACCESSORIES ........................................................................... 46

3410 STRUCTURAL STEELWORK - BASIC .............................. Error! Bookmark not defined. 3411 STRUCTURAL STEELWORK .......................................................................................... 49

3411D DHS PURLINS & GIRTS .................................................................................................. 54

3419 STRUCTURAL STEEL QUALITY CONTROL .................................................................. 57

© CIL Masterspec 2017 1013 DOCUMENT CONTROL

1013 DOCUMENT CONTROL 1. DOCUMENT CONTROL Document Control 1.1 PREPARED BY

Company: Jacobs New Zealand Ltd

Postal Address:

Street Address: Lvl 3, 410 Victoria Street

City: Hamilton

Telephone: 07 981 1717

Email: [email protected]

1.2 DOCUMENT DETAILS

Project Name: Building A, Poets’ Corner, 5 Cross Roads

Project Number: IZ086900

File Reference:

Client: Bird Plant and Equipment Trust

Client Contact: Philip Kempster c/o Chow Hill

Version: 0

1.3 REVISION CONTROL

Issue: Building Consent

Revision: 0

Amendment Details: N/A

Issued to: Chow Hill

Date of Issue: 19th May 2017

Reviewed by: Allen Spring

Approved by: Allen spring

1.4 AUDIT CONTROL

Date: 19th May 2017

Author: Masoud Moghaddasi

Approved by: Allen Spring

© CIL Masterspec 2017 2221 REMOVING VEGETATION

2221 REMOVING VEGETATION 1. GENERAL This section relates to the removal of vegetation, trees and shrubs in whole or in part, to

the extent necessary to carry out the contract works. 2. EXECUTION Conditions 2.1 FIRES Do not light rubbish fires on site. 2.2 REPORT Report any survey pegs, bench marks and the like on any features, leaving them

undisturbed until approval is given for removal. Application 2.3 CUT DOWN AND REMOVE Except for identified retained vegetation or features, cut down all growth, grub up all

major roots and remove from the site. Identify perennial weeds to be removed. Where regrowth can occur from residual plant material, ensure all plant material (including roots) is completely removed. Dispose of safely at authorised refuse transfer station.

Completion 2.4 LEAVE Leave work to the standard required by following procedures. 2.5 TAKE AWAY Take away from the site all material resulting from clearance of the site, leaving it clear

and tidy.

© CIL Masterspec 2017 2223 REMOVING SUBSURFACE CONSTRUCTIONS

2223 REMOVING SUBSURFACE CONSTRUCTIONS 1. GENERAL This section relates to the removal of disused subsurface building elements in whole or in

part, including foundations and services, to the extent necessary to carry out the contract works.

Related work 1.1 DOCUMENTS REFERRED TO Documents referred to in this section are: Health and Safety at Work Act 2015 Documents listed above and cited in the clauses that follow are part of this specification.

However, this specification takes precedence in the event of it being at variance with the cited document.

Requirements 1.3 EXPLOSIVES Confirm territorial authority and WorkSafe NZ approvals before storing or using

explosives on site. Comply with all requirements of the Health and Safety at Work Act 2015. Only certified construction blasters to manage, handle, or use explosives.

1.4 ARCHAEOLOGICAL DISCOVERY If fossils, antiquities and other items of value are found refer to the general section 1220

PROJECT for actions to be taken with archaeological discovery. 2. EXECUTION Conditions 2.1 REPORT Report any survey pegs, bench marks, and the like on any features, leaving them

undisturbed until approval is given for removal. 2.2 MARK FEATURES Refer to SELECTIONS/drawings for those features to be retained. Mark out those

features with 1 metre high 50mm x 50mm timber stakes with yellow plastic tape between, to avoid accidental damage.

2.3 ITEMS FOR DISPOSAL Carefully dismantle and/or remove and store on site where directed. Protect from

damage until taken away. Application 2.4 REMOVE DISUSED FOUNDATIONS Break out and remove old foundations and concrete slabs as necessary for construction,

or as detailed. 2.5 REMOVE DISUSED PILES Unless detailed for removal, cut off below grade, at or below sub-base level. 2.6 REMOVE DISUSED DRAINS Break out and remove old drains and fittings as necessary for construction, or as detailed.

Seal off ends of pipes to territorial authority requirements at the boundaries. Completion

© CIL Masterspec 2017 2223 REMOVING SUBSURFACE CONSTRUCTIONS

2.7 FIRES Do not light rubbish fires on site. 2.8 SURPLUS MATERIAL Remove spoil from the site continually as the work proceeds. Clean up continually if

dropped on footpaths or roads. 2.9 LEAVE Leave work to the standard required by following procedures. 2.10 TAKE AWAY Take away from the site all other material resulting from clearance of the site, leaving it

clear and tidy. 3. SELECTIONS 3.1 FEATURES TO BE RETAINED None

© CIL Masterspec 2017 APR 2242 BACKFILLING

2242 BACKFILLING 1. GENERAL This section relates to the supply, placing and compaction of materials for backfill,

basecourse or built-up ground, as required for the contract works. Related work 1.1 RELATED SECTIONS Refer to Geotechnical Engineering Report by Mark T Mitchell for requirements for back

filling. Documents 1.2 DOCUMENTS REFERRED TO Documents referred to in this section are: NZS 3104 Specification for concrete production NZS 3604 Timber-framed buildings NZS 4229 Concrete masonry buildings not requiring specific engineering design NZS 4431 Code of practice for earth fill for residential development NZS 4402 Methods of testing soils for civil engineering purposes TNZ M/04 Specification for basecourse aggregate Documents listed above and cited in the clauses that follow are part of this specification.

However, this specification takes precedence in the event of it being at variance with the cited document.

Requirements 1.4 AS BUILT DOCUMENTS - NZS 4431 Refer to the general section 1238 AS BUILT DOCUMENTATION for the requirements for

submission and review of as built documents and records. Provide the following as built documents and records: - Provide as built contour plan relating final topography to original topography. - Record areas of filled ground including areas of low density filling and areas not

considered to meet the standard. - Record location of associated drainage. - Record location and relative levels of levelling points and benchmarks, including the

date of the levelling - Provide draft as built information prior to practical completion. - Provide final as built information prior to the end of the defects liability period. - Provide copies to the owner of the land and to the TA 1.5 CONTROL TESTING FOR FILLS - NZS 4431 During construction of earth fills undertake required quantitative control tests on the fill

material. 1.6 INSPECTION NOTIFICATION - NZS 4431 Notify the inspecting engineer of the times required for inspection. 1.7 INSPECTION NOTIFICATION Notify the inspecting engineer of the times required for inspection. 1.8 STATEMENT OF SUITABILITY - NZS 4431 Provide a statement of suitability of earth fill for residential development in accordance

with Appendix A of NZS 4431, including engineers report. 2. PRODUCTS


Earth fill materials 2.1 EARTH FILL – COMMERCIAL AND INDUSTRIAL DEVELOPMENTS Earth fill as specified/identified by the geo-professional. Refer to SELECTIONS. Granular fill materials - Specific Design 2.2 GRANULAR FILL MATERIAL – SPECIFIC DESIGN Refer to SELECTIONS. 2.3 BLINDING LAYER – SPECIFIC DESIGN Refer to SELECTIONS. Dressing course 2.4 DRESSING COURSE Scoria to GAP 20 grading, or "dirty footpath scoria", or equivalent "all in" graded crushed

metal aggregate. Site concrete 2.5 SITE CONCRETE Low strength concrete 10 MPa with minimum water for workability, all materials and

batching to NZS 3104, table 3.1, Prescribed mixes (P). 3. EXECUTION Conditions 3.1 UNSUITABLE MATERIALS Remove from site all unsuitable filling material. 3.2 REMOVE SURPLUS Remove surplus imported filling materials from the site. 3.3 PLACE FILLING Place filling using approved methods, to required dimensions, levels, lines and profiles. 3.4 PROTECTION OF FORMATION Do not allow construction traffic on filling until the level has been raised not less than

150mm above formation level by properly compacted temporary protective filling. Remove temporary protective filling from the site before beginning permanent construction. Do not stockpile materials on newly filled areas without permission.

3.5 DIFFERING MATERIALS Where materials of widely divergent characteristics are used for filling, spread and

compact in clearly defined separate layers. 3.6 EARTHMOVING EQUIPMENT Do not use earthmoving equipment for compaction. 3.7 COMPACTION NEAR EDGE SUPPORTS Ensure that edge supports are strong enough to support compaction forces without

movement, cracking or other damage. Make good damage caused by compaction. 3.8 MOISTURE CONTENT, GENERAL FILL Moisture content at time of compaction to be within the range of optimum less 6% up to

optimum. Do not use filling with moisture content above optimum value. If necessary: - adjust moisture content of filling by turning and drying - provide water sprinkling equipment if fill is too dry. Application - Earth fill materials


3.9 SITE PREPARATION - NZS 4431 Before fill is placed on stripped natural ground, the ground surface shall be smoothed and

compacted in a manner similar to that to be used on the layers of fill. 3.10 FILL PLACING - NZS 4431 Fill shall be placed in a systematic manner, with near-horizontal layers of uniform

thickness of material each being deposited progressively across the fill area. The uncompacted thickness of a layer shall be no greater than 230 mm. Fill water content control and uniformity to the requirements of NZS 4431.

3.11 FILL COMPACTION - NZS 4431 Each layer shall be compacted as a specific construction operation, using plant

specifically assigned to the compaction task and following systematic patterns of travel tracks which progressively work across the surface of the fill. Recompact any compacted layer that has deteriorated after the interruption of the work.

Application - Granular fill material 3.12 SPREAD AND COMPACT GRANULAR FILL - GENERAL Spread and level in layers not more than 150mm loose depth from the approved level.

Compact filling in layers as specified by at least four passes of a vibratory roller having a static linear loading of 1.8 - 2.3 kg/mm, or twelve passes of a vibratory roller having a static linear loading of 0.8 - 1.2 kg/mm. Achieve a density of not less than 95% of maximum at optimum moisture content to NZS 4402. Compact with a vibrating plate compactor for small areas and in confined shapes.

Alternative compaction plant may be used provided it can be shown that the density

requirement can be achieved. 3.13 SAND BLIND SURFACE Blind surface of area being covered with a concrete slab with sand to required thickness.

Roll or compact with a vibrating plate tamper ready to take damp-proofing. Finish the surface with a non-vibrating smooth wheeled roller.

3.14 AP 7 BLIND SURFACE Blind surface of area being covered with a concrete with AP 7 to required thickness. Roll

or compact with a vibrating plate tamper ready to take damp-proofing. Finish the surface with a non-vibrating smooth wheeled roller.

Completion 3.15 LEVELLING POINTS - NZS 4431 Set permanent levelling points in the upper surface of the fill to the requirements of NZS

4431. 3.16 TAKE AWAY Take away from the site all selected excavated material or brought-in material not used

for backfilling, leaving the site clear and tidy. 3.17 LEAVE Leave work to the standard required by following procedures. 3.18 REMOVE Remove all debris and unused materials from the site.

© CIL Masterspec 2017 MAY 3101 CONCRETE WORK - BASIC

3101 CONCRETE WORK - BASIC 1. GENERAL This section relates to formwork, reinforcement, concrete mixes and the placing of

concrete. 1.1 ABBREVIATIONS AND DEFINITIONS The following definitions apply specifically to this section: ACRS Australian Certification Authority for Reinforcing Steels - An

independent certification scheme for reinforcing steel and structural steel, by product and manufacturer/processor. Certifies compliance with Australia/New Zealand Standards.

ACRS web site - www.steelcertification.com Documents 1.3 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: NZBC B1/AS1 Structure NZBC B1/VM1 Structure NZBC E2/AS3 External moisture AS 1366.3 Rigid cellular plastics for thermal insulation - Rigid cellular polystyrene

- Moulded (RC/PS - M) NZS 3101.1 Concrete structures standard NZS 3104 Specification for concrete production NZS 3109 Concrete construction NZS 3114 Specification for concrete surface finishes NZS 3604 Timber-framed buildings NZS 4229 Concrete masonry buildings not requiring specific engineering design AS/NZS 4671 Steel reinforcing materials AS/NZS 4858 Wet area membranes CCANZ CP 01 Code of practice for weathertight concrete and concrete masonry

construction Requirements 1.5 QUALIFICATIONS Workers to be experienced, competent trades people familiar with the materials and

techniques specified. 1.6 STEEL REINFORCING COMPLIANCE Steel reinforcing materials for concrete to AS/NZS 4671. Steel to be manufactured in

New Zealand, or by an overseas manufacturer holding a current valid (or equivalent) NZ S Mark or ACRS certificate for that type of steel. Confirm compliance and provide evidence if requested.

2. PRODUCTS 2.1 NORMAL CONCRETE Normal concrete 17.5 to 50 MPa grade, (refer to SELECTIONS), maximum aggregate

size 19mm ready-mixed to NZS 3104. Provide delivery dockets listing mix and despatch details.

2.2 REINFORCEMENT Bars to AS/NZS 4671. Grade 300E deformed, other than for ties, stirrups and spirals,

unless shown otherwise on the drawings. Welded reinforcing mesh Class E to AS/NZS 4671, and 500E mesh to AS/NZS 4671 as modified by NZS B1/VM1.


2.3 TYING WIRE Mild drawn steel wire not less than 1.2mm diameter. 2.4 SPACERS AND CHAIRS Precast concrete or purpose made moulded PVC to approval. Where concrete spacer

blocks are used in exposed concrete work use blocks matching surrounding concrete. 2.5 DAMP-PROOF MEMBRANE 0.25mm minimum polyethylene to NZS 3604, 7.5.4, Damp-proof membrane. 3. EXECUTION 3.1 HANDLE AND STORE Handle and store reinforcing steel and accessories without damage or contamination.

Store on timber fillets on hard ground in a secure area clear of any building operation. Lay steel fabric flat.

Ensure reinforcement is clean and remains clean so that at the time of placing concrete it

is free of all loose mill scale, loose rust and any other contamination that may reduce bonding capacity.

3.2 FALSEWORK AND FORMWORK Use falsework and formwork of sufficient strength to retain and support the wet concrete

to the required profiles and tolerances. Select formwork finish to produce the specified finished quality. Ensure timber or plywood used for formwork is non-staining to the set concrete.

Securely fix and brace formwork sufficiently to support loads and with joints and linings

tight enough to prevent water loss. Do not use tie wires or rods unless approved in writing by the Contract Administrator. Unless detailed otherwise, provide a 19mm chamfer or fillet strip at all interior and exterior angles of beam and column forms. Mitre at intersections.

Water blast to clean formwork. Keep formwork wet before concrete is placed. Unless detailed otherwise, set up soffit boxing for beams and slabs to provide a camber

when forms are stripped, of 3mm rise for every 3 metres of total clear span. 3.3 INSTALL DAMP-PROOF MEMBRANE Apply polythene membrane to prepared basecourse with 150mm laps between sheets.

Tape seal laps and penetrations with 50mm wide pressure sensitive plastic tape. Refer to drawings for perimeter details.

3.4 CUT AND BEND REINFORCEMENT Cut and bend bars using proper bending tools to avoid notching and to the requirements

of NZS 3109: 3.3 Hooks and bends. Minimum radii of reinforcement bends to NZS 3109, table 3.1, Minimum radii of reinforcement bends. Do not rebend bars. Where rebending is approved, use a purpose built tool, proper preparation and preheating.

3.5 ADJUSTMENTS Use a purpose built tool for on site bending and to deal with minor adjustments to steel

reinforcement. 3.6 TOLERANCES, BENDING To NZS 3109, 3.9, Tolerances for reinforcement. 3.7 SECURE REINFORCEMENT Secure reinforcement adequately with tying wire and place, support and secure against

displacement when concreting. Bend tying wire back well clear of the formwork. Spacing as dimensioned, or if not shown, to the clear distance minimums in NZS 3109, 3.6, Spacing of reinforcement.


3.8 LAPPED SPLICES Length of laps where not dimensioned on the drawings in accordance with the

SELECTIONS. Provide laps only where indicated on the drawings. Tie all lapping bars to each other. Plain bars lapped splices must be hooked.

Welded wire mesh laps to NZS 3101, lap one mesh square plus 50mm minimum (do not count bar extension beyond the outermost wire).

3.9 REINFORCEMENT COVER TO NZS 3101.1 Minimum cover to all reinforcing bars, stirrups, ties and spirals, as shown on drawings.

Where cover is not shown on drawings provide minimum cover to NZS 3101.1, table 3.6, Minimum required cover for a specified intended life of 50 years. Sub-soil cover to NZS 3101.1, to suit soil and groundwater conditions. Fix chairs for top reinforcement in slabs at 1.0 metre centres or to ensure adequate support. Cover tolerances to NZS 3109, 3.9, Tolerances for reinforcement.

3.10 CASTING IN Build in all grounds, bolts and fixings for wall plates and bracing elements, holding down

bolts, pipes, sleeves and fixings as required by all trades and as shown on the drawings, prior to pouring the concrete.

Do not use grounds exceeding 100mm in length. Location and form of conduits to be

approved in writing by the Contract Administrator. Minimum cover 40mm. Do not encase aluminium items in concrete. Do not paint steel embedded items more than 25mm into the concrete encasement. Cut back form ties to specified cover and fill the cavities with mortar.

Form all pockets, chases and flashing grooves as required by all trades and as shown on

the drawings. Wrap all pipes embedded in concrete with tape to break the bond and to accommodate

expansion. Do not embed pipes for conveying liquids exceeding a temperature of 50°C in concrete.

3.11 CONSTRUCTION JOINTS Locate and construct as shown on the drawings or in accordance with NZS 3109, 5.6,

Type B. 3.12 PRE-PLACEMENT INSPECTION Do not place concrete until all excavations, boxing and reinforcing have been inspected

and passed by the Building Consent Authority. 3.13 SURFACE FINISHES To NZS 3114, 105, Specification of finishes, as scheduled or as denoted on the drawings. 3.14 EXPOSED CONCRETE Formwork linings and surface finishes as nominated for both fair face and concealed or

exposed surfaces. Unless detailed, obtain written confirmation of the type and pattern of all joints.

3.15 CONCRETE SURFACE TOLERANCES To NZS 3114, 104, Surface tolerances and NZS 3114, 105, Specification of finishes, with

the suggested tolerances becoming the required tolerances. 3.16 PUMPING CONCRETE Set up and supervise pump operation, placing and compaction of the mix to NZS 3109,

7.4, Handling and placing and NZS 3109, 7.6, Compaction Advise the ready-mix supplier of the type of pump and the slump required, in addition to the concrete grade, strength and quantity.

3.17 COMPACTION Use power operated vibrators on foundations, vertical constructions and beams.


3.18 SAW CUTS Cut slabs where indicated on the drawings and as required to control shrinkage cracking.

Carry out cutting as soon as possible, without causing tear-out of aggregate and before shrinkage cracking has occurred, generally within 24 hours of pouring. Where saw cuts are to be made, cut out 100mm of every second wire of the mesh for a length of 50mm each side of the saw cut position. Saw cuts: 1/3rd slab depth or 30mm minimum.

3.19 SPACING OF SAW CUTS Spacing of sawcuts

Floor situation Maximum spacing of sawcuts both ways

Architectural, exposed floor, thin finishes, rigid finishes 4m

Carpet on underlay flooring 6m

3.20 SURFACE DEFECTS Make good surface defects immediately after forms are stripped. Make good hollows or

bony areas with 1:2 mortar or plaster, finished to the same tolerances as the parent concrete. Fill any tie rod holes with 1:2 mortar.

3.21 CURING OF CONCRETE Keep damp for not less than seven days. Ensure curing of slabs commences as soon as

possible after final finishing, by the use of continuous water sprays, or ponding. Alternately, apply a curing membrane. Ensure any membrane used will not affect subsequent applied finishes.

3.22 STRIKE FORMWORK Strike formwork without damaging or overloading structure. Do not remove formwork

before the following minimum periods: 12 hours: Sides of beams, walls and columns 4 days: Slabs in beam and slab construction (leave props under slab spans

over 2 metres) 10 days: Props from under slab spans over 2 metres 18 days: Beams, soffits and slab spans over 5 metres 3.23 CLEAN OUT Clean out saw cuts. Fill with cement grout where the floor will be covered with carpet or

vinyl. 3.24 REMOVE Remove all unused materials and all concrete and reinforcing debris from the site. 4. SELECTIONS 4.1 DAMP-PROOF MEMBRANE Refer Architect’s specification 4.2 REINFORCEMENT LAPS Where reinforcement laps are not shown on the drawings, lap as follows:

Bar diameter Grade 300E deformed

10mm 400mm

12mm 500mm

16mm 650mm

4.4 SURFACE FINISHES FLOOR SLABS Surface finish class to NZS 3114: table 2, Classes of floor, exterior pavement and invert

finishes.

Finish class Location

U3 ~


4.5 SURFACE FINISHES OFF THE FORM, WALLS, COLUMNS, BEAMS OR CEILINGS Surface finish class to NZS 3114: table 1, Classes of surface finish.

Finish class Location

F4 ~

© CIL Masterspec 2017 APR 3105 CONCRETE - COMMON REQUIREMENTS

3105 CONCRETE - COMMON REQUIREMENTS 1. GENERAL This section deals with general matters relating to all aspects of concrete work. 1.1 RELATED WORK Refer to 3111 FORMWORK FOR CONCRETE for formwork Refer to 3112 REINFORCEMENT FOR CONCRETE for reinforcement Refer to 3121 CONCRETE PLACEMENT for concrete placing Refer to 3124 FINISHES TO WET CONCRETE for concrete finishing Refer to 3129 CONCRETE PRODUCTION for concrete production 1.2 ABBREVIATIONS AND DEFINITIONS The following abbreviation and definition apply specifically to this section: ACRS: Australian Certification Authority for Reinforcing Steels - An

independent certification scheme for reinforcing steel and structural steel, by product and manufacturer/processor. Certifies compliance with Australia/New Zealand Standards.Web site: www.steelcertification.com

Documents 1.3 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: NZBC B1/VM1 Structure AS 1366.3 Rigid cellular plastics for thermal insulation - Rigid cellular polystyrene

- Moulded (RC/PS - M) AS/NZS 1554.3 Structural steel welding - Welding of reinforcing steel AS/NZS 2269.0 Plywood - Structural - Specifications NZS 3101.1 Concrete Structures Standard NZS 3104 Specification for concrete production NZS 3109 Concrete construction * NZS 3112.1 Methods of test for concrete - Tests relating to fresh concrete NZS 3113 Chemical admixtures for concrete NZS 3114 Specification for concrete surface finishes NZS 3117 Pigments for Portland cement and Portland cement products NZS 3121 Water and aggregate for concrete NZS 3122 Specification for Portland and blended cements (General and special

purpose) NZS 3125 Specification for Portland-limestone filler cement NZS 3604 Timber-framed buildings NZS 3603 Timber Structures Standard NZS 3631 New Zealand timber grading rules NZS 4229 Concrete masonry buildings not requiring specific engineering design AS/NZS 4357 Structural laminated veneer lumber AS/NZS 4671 Steel reinforcing materials AS/NZS 4672.1 Steel prestressing materials - General requirements AS/NZS 4672.2 Steel prestressing materials - Testing requirements AS/NZS ISO 9001 Quality management systems - Requirements Alkali aggregate reaction (Cement and Concrete Association) * A copy of NZS 3109 Concrete construction, must be held on site. Requirements 1.5 QUALIFICATIONS Workers to be experienced, competent and familiar in the fabrication and erection of

formwork and with the materials and the techniques specified.


1.6 INSPECTIONS Refer to SELECTIONS for type of inspection. 1.7 RECORDS Make and keep record of mix, time, date and location of each pour and make available on

request together with delivery dockets. Cross reference delivery dockets in pour records. 1.8 PRODUCER STATEMENTS Provide Producer Statements where required by the Building Consent Authority and

where required by this specification. Performance 1.9 STEEL REINFORCING COMPLIANCE Steel reinforcing and steel prestressing materials for concrete to AS/NZS 4671 or

AS/NZS 4672.1, respectively. Steel to be manufactured in New Zealand, or by an overseas manufacturer holding a current valid (or equivalent) NZ S Mark or ACRS certificate for that type of steel.

Any 500E steel reinforcing mesh to AS/NZS 4671 as modified by NZS B1/VM1. Steel that fails to meet these requirements is not to be used (or ordered) without the

contract administrators written approval, further proof and/or testing may be required. 1.10 CONFIRM STEEL REINFORCING COMPLIANCE Certification from the supplier confirming that the steel reinforcing supplied complies with

the grades specified on the drawings by producing test results to AS/NZS 4671 or AS/NZS 4672.1 and AS/NZS 4672.2. Any 500E steel reinforcing mesh to AS/NZS 4671 as modified by NZS B1/VM1. For overseas manufactured steel provide NZ S Mark or ACRS certificate details or approved equivalent.

1.11 TESTING, ON SITE Carry out sampling and concrete acceptance tests during construction to NZS 3109:

section 9, Concrete acceptance tests during construction, noting that concrete may be rejected for:

- Non-compliance with this specification. - Non-compliance with NZS 3109, section 9, Concrete acceptance tests during

construction. - Showing by appearance when in place that it does not comply with this specification,

especially in respect of surface finish, segregation, or low density and which cannot acceptably be made good.

Conduct 7 day strength tests. After a 7 day test result of less than 60% of the specified

strength, concrete placement to stop until it is shown the suspect concrete complies with the specification. Make all test records available.

1.12 CONTROL TESTS Carry out slump tests, yield tests and air content tests to NZS 3112.1, sections 4, 5, and 9

respectively and evaluate to NZS 3104: section 2.15, Control tests and their evaluation, keeping a record of all tests at the plant and making them available on request.

1.13 STRENGTH TESTS Carry out to NZS 3112.2, section 10 and evaluate to NZS 3104: section 2.15, Control

tests and their evaluation, keeping a record of all tests at the plant and making them available on request.

1.14 QUALITY ASSURANCE Carry out the whole of this work to the requirements of NZS 3109 and under the regime of

a quality systems model for quality assurance in production and erection to AS/NZS ISO 9001.

Quality assurance procedures to include all aspects of concrete construction including: - Formwork quality - Reinforcing steel placing


- Cast in items - Concrete quality - Concrete finishes - Construction tolerances Advise name of the suitably experienced and qualified representative who is responsible

for quality control of the concrete work. The representative is to sign a written quality control checklist for each on site concrete pour. Provide a copy to the construction reviewer in sufficient time for a pre pour inspection.

© CIL Masterspec 2017 APR 3106 CONCRETE QUALITY CONTROL

3106 CONCRETE QUALITY CONTROL 1. GENERAL This section relates to the quality control of concrete. 1.1 RELATED SECTIONS Refer to 3105 CONCRETE COMMON REQUIREMENTS for general matters Refer to 3112 REINFORCEMENT FOR CONCRETE for reinforcement Refer to 3121 CONCRETE PLACEMENT for concrete placing Refer to 3124 FINISHES TO WET CONCRETE for concrete finishing Refer to 3129 CONCRETE PRODUCTION for concrete production 1.2 ABBREVIATIONS AND DEFINITIONS Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations

and definitions used throughout the specification. The following definitions apply specifically to this section:

Primary Concrete Concrete required for structural purposes in tunnel linings, inverts, walls, floors, plinths and piers

Finishing Concrete High strength concrete which is poured against primary concrete for embedding steelwork and achieving fine dimensional tolerances with smooth finishes and durability

TELARC Registered Laboratory

(TRL)Any testing laboratory recognised by the Testing Laboratory Registration Council of New Zealand

ARCS Australian Certification Authority for Reinforcing Steels - An independent certification scheme for reinforcing steel and structural steel, by product and manufacturer/processor. Certifies compliance with Australia/New Zealand Standards. (ACRS Web site - www.steelcertification.com)


documents are specifically referred to in this section: AS 1478 Chemical Admixtures for Concrete NZS 3104 Specification for concrete production NZS 3109 Concrete construction NZS 3111 Methods of test for water and aggregate for concrete NZS 3112.1 Methods of test for concrete - Tests relating to fresh concrete NZS 3121 Water and aggregate for concrete NZS 3122 Specification for Portland and blended cements (General and special

purpose) AS/NZS 3582.1 Supplementary cementitious materials - Fly ash AS/NZS 4671 Steel reinforcing materials AS/NZS 4672.1 Steel prestressing materials - General requirements AS/NZS 4672.2 Steel prestressing materials - Testing requirements ASTM C88 05 Standard Test Method for Soundness of Aggregates by use of Sodium

Sulphate or Magnesium Sulphate Requirements 1.4 QUALIFICATIONS Workers to be experienced, competent trades people familiar with the materials and

techniques specified. 1.5 CONCRETE MIX DESIGN Refer to the general section 1235 SHOP DRAWINGS for the requirements for submission

and review and the provision of final mix design. Not later than eight weeks before commencing concreting operations, submit a concrete

mix design certified by a Registered Engineer for each type of concrete specified herein.


Include the following details in addition to those required by NZS 3109. - Mix Designation - Target Strength - Target Water/Cement Ratio by weight - Batch weights of cement and aggregate - Type and brand of cement - Type, purpose and quantity of admixtures and rate and method of application - Typical allowances made for aggregate moisture content - Target slump - Amount of air entrainment - Batch size and yield 1.6 STEEL REINFORCEMENT COMPLIANCE Steel reinforcing and steel prestressing materials for concrete to AS/NZS 4671 or

AS/NZS 4672.1, respectively. Steel to be manufactured in New Zealand, or by an overseas manufacturer holding a current valid NZ S Mark or ACRS certificate for that type of steel.

Steel that fails to meet these requirements is not to be used (or ordered) without the

contract administrators written approval. If non-compliant steel approval is sort and the project administrator agrees to consider it,

the contractor will have to use at least one or more of the following methods to demonstrate alternative compliance:

- If steel has other product certification system, contractor to demonstrate direct equivalency to NZ S Mark or ACRS certificate.

- Contractor to nominate the members in which each individual batch of steel is to be used and shall also state the country, mill of origin and the specification to which the steel for that member is produced, and clearly demonstrate how it is equivalent to AS/NZS 4671 or AS/NZS 4672.1.

- Provide Certificates from a TELARC/NATA laboratory of chemical composition and physical properties of all reinforcing steel. All testing will be in compliance with Clause B7 of AS/NZS 4671 or Clause 12 of AS/NZS 4672.2, including frequency of sampling and testing.

1.7 CONFIRM STEEL REINFORCEMENT COMPLIANCE Certification from the supplier confirming that the steel reinforcing supplied complies with

the grades specified on the drawings by producing test results to AS/NZS 4671 or AS/NZS 4672.1 and AS/NZS 4672.2. For overseas manufactured steel provide NZ S Mark or ACRS certificate details or approved equivalent.

Compliance information 1.8 INFORMATION REQUIRED FOR CODE COMPLIANCE Provide the following compliance documentation: - - Producer Statement - Construction from the Contractor - Producer Statement - Design from the Contractor - Producer Statement - Construction Review from an acceptable suitably qualified person - Other information required by the BCA in the Building Consent Approval documents. Quality control and assurance 1.9 REPORTS AND RECORDS Maintain daily records of concrete placement, including but not limited to, delivery

records, concrete volumes, stationing of concrete placement, lengths of pours, time of pours, slump, and cylinder sample preparation.

Submit reports and records to the Engineer within 24 hours. 1.10 CERTIFICATES Provide laboratory test results for aggregates and certification of compliance with contract

requirements; test to NZS 3121. Provide a certificate of compliance indicating that each of the following conform to the

appropriate standards.


- Portland Cement to NZS 3122 - Fly Ash to AS/NZS 3582.1 - Reinforcing Steel to AS/NZS 4671 - Water to NZS 3111 1.11 TESTING RECORDS In addition to NZS 3109, 9.5.5, submit; - a record of each slump test in written form as single results and the mean of the last six

results. - a record of compressive strength test results in written form as single results and in

control chart form. The control chart form shall show the mean of the last six results, the target strength, the specified strength, and the cautionary and rejection limits in accordance with NZS 3109.

- a record of each air content test. - submit a verification of registration from the TELARC laboratory, for all the specified

tests in this section. 2. PRODUCTS Materials 2.1 CEMENT All cement to NZS 3122, and AS 3972. Refer to SELECTIONS for types. 2.2 AGGREGATES To NZS 3111, NZS 3104 and NZS 3121, from a source approved by the engineer. Minimum density NZS 3111, Test Number 12 - 2500 kg/m³. Reactivity ASTM C 289: Innocuous (All Rc and Sc points plotting left of the solid line on

the dissolved silica versus reduction in alkalinity plot). Sodium Sulphate Soundness of Coarse Aggregate Only, to ASTM C88 05. 5 cycles: cumulative loss not greater than 12%. Grading to NZS 3104. 2.3 SAND To NZS 3111, NZS 3104 and NZS 3121, from a source approved by the engineer. Minimum density NZS 3111, Test Number 16: -2500 kg/m³. Reactivity ASTM C 289: Innocuous (All Rc and Sc points plotting left of the solid line on

the dissolved silica versus reduction in alkalinity plot). Sodium Sulphate Soundness of Coarse Aggregate Only, to ASTM C88 05. 5 cycles: cumulative loss not greater than 12%. 2.4 REINFORCEMENT Strength Grade 300 and 500 deformed steel bars and welded reinforcing fabric (WRF)

conforming to AS/NZS 4671. 500E WRF to AS/NZS 4671 as modified by NZS B1/VM1. Ductility Class N and E. Components 2.5 ADMIXTURES To AS 1478. Use air-entrained agent in accordance with ASTM C 260 to provide a total air content of

4% ± 1.5%, provided that, when the mean daily ambient air temperature in the vicinity of the work falls below 5°C for more than one day, the total air content provided shall be of 6% ± 1.5%. Add air-entraining agent to the batch in a portion of the mixing water.

Additional admixtures may be added to concrete or grout at the Contractor's option, to control the set, to reduce the heat of hydration, effect water reduction, improve pumpability and increase workability. Admixtures shall be approved by the engineer and shall comply with the following requirements;

- The quantity of admixture used and the method of mixing shall be in accordance with the manufacturer's instructions and recommendations.

- Low range water reducer shall be either a hydroxylated carboxylic acid type or a hydroxylated/polymer type.


- Admixtures containing calcium chloride will not be permitted. - For difficult locations of limited access (such as in secondary concreting) a

superplasticiser admixture may be used. 2.6 WATER To NZS 3121, except that chloride ion (Cl) concentration shall not exceed 500ppm. 2.7 BONDING AGENT BETWEEN PRIMARY AND SECONDARY CONCRETE. Joint preparation, mix design and placing methods which do not rely on bonding agents

to give a long term reliable bond between the primary and secondary concrete are preferred. The use of bonding agents will only be permitted when approved in writing by the Engineer, for a specific location.

Accessories Equipment 2.8 CONCRETE VIBRATORS Electrically or pneumatically driven immersion type vibrators with operating speeds of

6000 - 7000 rpm and with a diameter capable of passing through reinforcement and anchorages for embedded steelwork.

3. EXECUTION Conditions 3.1 DELIVERY, STORAGE AND HANDLING Take delivery of all materials. Store all materials including coarse aggregate and sand on

site under dry covered shelters to minimise moisture content variability in the stockpiled materials.

3.2 CONCRETE MIX DESIGN Proportion the mix to minimise water content consistent with achieving the required

slumps and strengths specified herein. Design the mix to produce a concrete capable of being placed and consolidated without segregation so as to obtain maximum density and minimum shrinkage. Where placed in forms, mix shall have good consolidation properties and meet the surface smoothness standards required for the finish levels specified.

3.3 MIX DESIGN CHANGES Change the mix proportions whenever necessary to obtain the required results. Submit

all mix design changes to the Engineer for review prior to use. 3.4 SLUMP Measure slumps in accordance with NZS 3112, 5, unless otherwise approved by the

Engineer, based on the Contractors demonstration that a greater slump is required for proper placement.

3.5 TRIAL BATCHES Evaluate each proposed mix design from field tests of a trial batch conforming to the size

of load, material proportions, slump, mixing and placing equipment and procedures to be used in the actual work. Do not use concrete from trial batches in the actual work.

Perform a series of 15 compression tests on the trial batch. Initial evidence of suitability

of a mix design will be if the mean 28 day compressive strength of the 15 tests equals or exceeds the appropriate minimum target mean strength of NZS 3104.

Do not place concrete in the permanent work until the mix design has qualified in these tests. Should the source of materials or established procedures change, a new trial batch may be required by the Engineer.

Installation/application


3.6 STANDARDS AND TOLERANCES Refer to the general section 1270 CONSTRUCTION for general requirements. All permissible dimensional deviations shall comply with NZS 3109 unless modified by

this specification as follows. Concrete tolerances: If not shown on the drawings, dimensional tolerances on concrete

work shall comply with the following; - maximum deviation shall not be more than 13mm from a 3.0m long straight-edge,

placed on a longitudinal surface. - maximum length and height deviation shall be ± 3mm for primary concrete and +0mm

and -2mm for secondary concrete, from dimensions shown on the drawings. - maximum overall thickness deviation shall be not more than 1mm or less than 2mm

from dimensions shown on drawings. - maximum deviation from square shall be not more or less than 6mm for primary

concrete and 2mm for secondary concrete, from dimensions shown on drawings. 3.7 CONCRETE PRODUCTION Demonstrate the initial grade of production in terms of the criteria given in NZS 3104,

2.13, Target mean strengths and variability control, and the capability of the plant to consistently achieve the grades of concrete specified.

Except where the mixing water is heated, add water prior to, during and following the

mixer charging operations. When heated water is used during cold weather, place approximately 75% of the hot water in the mixer either ahead of the aggregates or with them. Add the cement after the aggregates. Add the final 25% of the water at a moderate rate as a final component.

If the plant is not attaining the standards required for High Grade concrete production to

NZS 3104, cease concrete delivery until it is shown that the corrective action has been taken.

Quality Control - Execution 3.8 AGGREGATE QUALITY Carry out coarse aggregate and sand gradation tests at the frequency required by NZS

3104, using methods specified in NZS 3111. Perform aggregate quality tests to confirm compliance with this specification during the course of the work. Take test samples on site from each 250m³ of fine of fine aggregate and each 500m³ of coarse aggregate delivered to the concrete batch plant.

3.9 IMPURITIES Various impurity levels contained in the aggregate/cement shall be limited by the

following standards; - sugar to AS 2758.1 - silt, clay and dust to NZS 3111 - coal, wood and other lightweight materials to NZS 3111 - chloride to NZS 3109 3.10 CONCRETE QUALITY Take concrete samples for strength testing at the rate of 1 sample/50 m³, or with a

minimum of one sample/ shift. Carry out tests, including numbers of tests and procedures, to NZS 3109. Sample collection, field tests and laboratory test shall be carried out by a TELARC Registered testing laboratory accredited for the specific tests.

The Engineer may carry out additional testing on both aggregate and concrete. Ensure

the engineer has access to sample aggregates at the batching plant and concrete at the worksite.

Moulding and curing of compression test cylinders shall be in accordance with NZS 3112,

3.


Sample concrete at the location where it is to be placed. If concrete is pumped, representative samples for approval tests shall be taken from the placement end of the pump line.

3.11 ACCEPTANCE OR REJECTION OF CONCRETE Acceptance or rejection of concrete on compressive strength will be determined from the

28 day compressive strength of random specimens to NZS 3109, or from such earlier or accelerated tests as may be agreed with the Engineer.

When concrete is liable to rejection in accordance with the single result criteria to NZS

3109, the Engineer may order the concrete represented by the particular test or tests to be removed from the work.

When concrete is liable to rejection, the Contractor may elect to take cores in accordance

with NZS 3109, 9.5.7. Within one week of the rejection order and before taking any action the Contractor shall notify the Engineer in writing of his intention to cut cores. The Engineer will select the locations where cores will be taken. Cores shall be cut at the Contractors expense. Cores shall be as large as is practicable up to a maximum of 100mm diameter. The compression testing of cores shall be undertaken by a testing authority approved by the Engineer. The test results shall be corrected for shape of specimen by multiplying the compressive strength obtained by the appropriate factor in accordance with the following table.

Shape Corrections for Compressive Testing

Ratio of Length of Core to Diameter (L/D) Shape Correction Factor

2.00 1.00

1.75 0.99

1.50 0.97

1.25 0.94

1.00 0.91

Cores tested shall have dimensions which provide L/D values within the range of the

table. Intermediate values shall be obtained by linear interpolation. Apart from shape factor corrections, no other correction factors shall be applied to the compression strength test results from cores.

If the corrected compressive strength is in compliance with NZS 3109, 9.5.7, the concrete

will be deemed to be satisfactory and the structure will be accepted after the core holes have been repaired to the satisfaction of the Engineer.

If concrete does not meet specification, stop delivery until rectified. 4. SELECTIONS 4.1 CEMENT TYPE Cement type: GP (General Purpose Portland Cement)

© CIL Masterspec 2017 3111 FORMWORK FOR CONCRETE

3111 FORMWORK FOR CONCRETE 1. GENERAL This section relates to the design and construction of formwork necessary to support and

confine the concrete and shape it to the required dimensions. 1.1 RELATED SECTIONS Refer to 3105 CONCRETE COMMON REQUIREMENTS for general matters Refer to 3112 REINFORCEMENT FOR CONCRETE for reinforcement Refer to 3121 CONCRETE PLACEMENT for concrete placing Refer to 3124 FINISHES TO WET CONCRETE for concrete finishing Refer to 3129 CONCRETE PRODUCTION for concrete production 1.2 ABBREVIATIONS AND DEFINITIONS Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations

and definitions used throughout the specification. The following definitions apply specifically to this section: Jump formwork Incrementally moved formwork Lost formwork Void creating sacrificial formwork Slip formwork Continuously slipped or moving formwork Table forms Prefabricated and re-useable formwork systems for slabs and beams Documents 1.3 DOCUMENTS REFERRED TO Documents referred to in this section are listed in 3105 CONCRETE COMMON

REQUIREMENTS. Conditions 1.4 INSPECTIONS Give notice so that inspection may be made of the following; - completed formwork before concrete placing - used formwork, after cleaning and before re-use 2. PRODUCTS Materials 2.1 TIMBER FALSEWORK No. 2 framing radiata pine to NZS 3631 or as required to construct the required formwork. 2.2 STRUCTURAL PLYWOOD To AS/NZS 2269.0 for shutter face with plywood grade as necessary to obtain the

concrete finish specified. Use pre sealed plywood specifically manufactured for use as formwork or seal with 2 coats of polyurethane.

2.3 OPENINGS In vertical forms provide openings or removable panels for inspection and cleaning, at the

base of columns, walls and deep beams. Finishes 2.4 RELEASE AGENT A release agent that will not stain or adhere to the concrete, contaminate reinforcing steel

or construction joints, or have a detrimental effect on any applied finishes. 2.5 SURFACE RETARDER A surface retarder that will not have long term detrimental effects on the concrete or on

any applied finishes.


3. EXECUTION Conditions 3.1 PROVIDE ALL FORMWORK Provide all formwork necessary to support and confine the concrete and shape it to the

required dimensions. 3.2 VISUALLY IMPORTANT SURFACES For concrete of surface finish classes 1, 2 or 3, set out the formwork to give a regular

arrangement of panels, joints, bolt holes, and similar visible elements in the formed surface.

3.3 ACCURACY Unless stated otherwise on the drawings permissible deviations from established lines,

grades, dimensions and cambers to remain within the tolerances laid down in NZS 3109: table 5.1, Tolerances for precast components and table 5.2, Tolerances for in situ construction.

3.4 TOLERANCES OF CONCRETE SURFACE FINISHES Unless stated otherwise on the drawings, permissible abrupt, offset and gradual

deviations for the specified surface finish to remain within the tolerances laid down in NZS 3114: table 3, Tolerances for abrupt deviations or offsets and gradual deviations.

3.5 LOADINGS Design and construct formwork and falsework in accordance with sound engineering

principles to withstand the worst combination of: - dead loads of formwork, reinforcement, concrete and precast elements such as floor

planks - construction loads including dynamic effects of placing, compacting and construction

traffic - wind and snow loads. 3.6 FALSEWORK Carry strutting down to a construction sufficiently strong and stable to afford the required

support without permissible stress or deflections being exceeded. Prop through to other floors if the construction load on a particular floor exceeds the design load.

3.7 CAMBERS Cambers shown on the drawings or specified, relate to the concrete immediately before

formwork is struck. Unless otherwise shown on drawings, construct forms to achieve the following:

- maximum deflection of face materials between strutting: 1/240th of span, but not exceeding 6mm, or within the tolerances specified for surface finish in 3121 CONCRETE PLACEMENT

- maximum deflection of beams: 1/900th of span - maximum deflection of cantilevers supporting construction loads: 1/300th of cantilever

length. 3.8 CONSTRUCTION JOINTS To NZS 3109: clause, 5.6 Construction joints. Clean face of previously hardened

concrete at construction joints. Use surface retarders to provide a key at construction joints. Use in accordance with the

manufacturer's stated requirements. Remove laitance, contamination and cracked or dislodged aggregate before placing the continuing shutters and forms. Keep joints clean and undamaged until placing concrete.

3.9 LOCATION OF CONSTRUCTION JOINTS Unless otherwise shown on the drawings locate the joints at positions listed in

SELECTIONS.


3.10 JOINTS IN FORMS Construct joints to prevent loss of grout between joints in form linings, as well as between

forms and completed work. Seal the joints consistent with the surface finish class. Column forms to have full height linings so that no horizontal joints occur on exposed faces.

Application 3.11 FABRICATION Fabricate formwork and falsework in a manner permitting its easy removal without

damage to the concrete. Provide positive means of adjustment to ensure the formwork is secured in its correct position.

Provide a 20mm x 20mm chamfer to all corners unless detailed or noted otherwise.

Protect corners from damage during and after stripping. 3.12 SECURELY FIX Securely fix and brace to ensure sufficient strength and rigidity to support in safety all

loads arising during construction and to maintain the specified dimensional tolerances. 3.13 WORK BELOW GROUND Provide formwork to vertical faces below ground level. 3.14 FORM TIES Use proprietary form ties and spreaders. Wire ties are not permitted. 3.15 CHASES, HOLES, NIBS, REBATES AND REVEALS Form chases, fillets, holes upstands and nibs as shown on the drawings. Position

accurately at time of casting concrete. 3.16 CAST IN ITEMS, NON STRUCTURAL Securely fix non-structural cast in items shown on drawings. 3.17 CAST IN ITEMS, STRUCTURAL STEEL Securely fix structural steel cast in items and hold down bolts shown on drawings.

Position accurately at time of casting concrete. 3.18 TRAPS AND WASHOUT PORTS To NZS 3109: clause 7.3, Preparation for concreting. 3.19 REMOVABLE BOLTS Must be removable without causing damage to the concrete. 3.20 BOLT HOLE FILLING Position formwork tie bolts left in the concrete so that the tie does not project to within

50mm of the finished surface. Provide filling material that has the durability and colour matching the concrete. When carrying out recessed filling, fill or plug the hole to 6mm below the surface.

3.21 EMBEDMENTS Fix embedments through formwork to prevent movement, or loss of slurry or concrete

during concrete placement. Finishing 3.22 RELEASE AGENTS Use the same type and brand throughout the entire area of any one finish. Apply evenly

to form faces using the minimum amount necessary to obtain a clean release. Do not allow the release agent to come in contact with reinforcement, hardened concrete or other materials not part of the form face. Ensure compatibility with subsequent finishes being applied to the concrete.


Thoroughly clean any reinforcement coming in contact with release agent to remove all traces of release agent.

Completion 3.23 STRIKING FORMWORK Ensure the safe removal of all or any part of the formwork. Remove formwork without

shock or vibration or damage to the concrete and in such a manner as to take the imposed stresses gradually to NZS 3109: clause 5.4, Removal of forms and shores. Stripping times to NZS 3109: table 5.3, Minimum formwork stripping times - in situ concrete for type GP cement. Make appropriate allowances for modified concrete.

3.24 PARTIAL STRIKING If this is required, retain supports undisturbed as follows: - to soffit or beams where side forms are struck - to slabs where soffit forms are struck. 3.25 LOADING BEFORE STRIKING Do not erect masonry walls or other brittle elements on beams and slabs while they are

still supported by formwork. 4. SELECTIONS 4.1 FORMWORK SYSTEM

Formwork system: ~

Location: ~

4.3 LOCATION OF CONSTRUCTION JOINTS Where construction joints are not shown on the drawings, locate as follows:

maximum area maximum length

Slabs on ground: 200 m² 20 metres

Suspended slabs: 400 m² 40 metres

maximum length maximum lift

Beams: 25 metres

Walls 10 metres 4 metres

Columns: 3 metres

Residential slabs on ground Free Joints modified by NZBC B1/AS1

maximum length

NZS 3604 Free joints: 24 metres

NZS 4229 Free joints 18 metres

© CIL Masterspec 2017 MAY 3112 REINFORCEMENT FOR CONCRETE

3112 REINFORCEMENT FOR CONCRETE 1. GENERAL This section relates to the supply, cutting, bending and fixing of steel bar and steel

welded reinforcement for concrete. 1.1 RELATED WORK Refer to 3105 CONCRETE COMMON REQUIREMENTS for general matters Refer to 3111 FORMWORK FOR CONCRETE for formwork Refer to 3121 CONCRETE PLACEMENT for concrete placing Refer to 3129 CONCRETE PRODUCTION for concrete production Documents 1.2 DOCUMENTS REFERRED TO Documents referred to in this section are listed in 3105 CONCRETE COMMON

REQUIREMENTS. Requirements 1.3 SELECTIONS AND DIAGRAMS Provide schedules and diagrams of bars and bar bending. 2. PRODUCTS Materials 2.1 GRADE 300E STEEL To AS/NZS 4671. Round bars are shown by symbol "R" and deformed bars by symbol

"D", followed by the diameter in millimetres. 2.2 GRADE 500E STEEL To AS/NZS 4671. Round bars shown by symbol "HR" and deformed bars by symbol

"HD" followed by diameter in millimetres. 2.3 WELDED WIRE FABRIC Hard drawn steel wire spot welded with correct gauge to AS/NZS 4671, smooth or

deformed and to the spacings and dimensions either specified or shown on the drawings. 500E mesh to AS/NZS 4671 as modified by NZS B1/VM1.

2.4 TYING WIRE Mild drawn steel wire not less than 1.2mm diameter. Components 2.5 SPACERS AND CHAIRS Precast concrete or purpose made moulded PVC to approval. Where concrete spacer

blocks are used in exposed concrete work use blocks matching surrounding concrete. 3. EXECUTION Conditions 3.1 HANDLE AND STORE Handle and store all reinforcing steel and accessories without damage or contamination.

Store on timber fillets on hard ground in a secure area clear of any building operation. Lay steel fabric flat.

3.2 DELIVER ALL BUNDLES Deliver all bundles of steel to the site clearly marked or tagged with numbers relating

them to the bending schedule and drawings.


3.3 CLEANLINESS Keep reinforcement clean so that at the time of placing concrete it is free of all loose mill

scale, loose rust and any other contamination that may reduce bonding capacity. 3.4 PROJECTING REINFORCEMENT Protect projecting reinforcement from the weather where rust staining of exposed

concrete surfaces may occur. Protect and/or mark any projecting reinforcement where it provides a potential hazard to

site personnel. Assembly 3.5 CUT AND BEND Cut and bend bars using proper bending tools to avoid notching and to the requirements

of NZS 3101.1, 8 and NZS 3109: 3.3 Hooks and bends. Minimum radii of reinforcement bends to NZS 3101.1, 8 and NZS 3109: table 3.1, Minimum radii of reinforcement bends. Do not rebend grade 500E bars. Where rebending is necessary for grade 300E bars, use a purpose built tool, proper preparation and preheating.

3.6 ADJUSTMENTS Use a purpose built tool for on site bending and to deal with minor adjustments to steel

reinforcement. 3.7 TOLERANCES, BENDING To NZS 3109: clause, 3.9 Tolerances for reinforcement. Application 3.8 SECURE REINFORCEMENT Secure reinforcement adequately with tying wire and place accurately, supported

adequately and secured against displacement when concreting. Bend tying wire back well clear of the formwork.

3.9 SPACING Spacing as dimensioned on the drawings but if not shown then the clear distance

between parallel bars in a layer, or the distance between layers, or the spacing of other steel to the minimums laid down in NZS 3109: clause 3.6, Spacing of reinforcement.

3.10 TOLERANCES, SPACING To NZS 3109: clause 3.9, Tolerances for reinforcement. 3.11 LAPPED SPLICES Length of laps where not dimensioned on the drawings in accordance with NZS 3101.1,

8.7 Splices in reinforcement, refer SELECTIONS. Provide laps only where indicated on the drawings. Tie all lapping bars to each other. Plain bars lapped splices must be hooked.

3.12 WELDED SPLICES No Quench and Tempered (QT) reinforcing bar shall be welded or preheated. For

Microalloy reinforcing bars, carry out only if either specified on the drawings or after written approval from the Construction reviewer and then to the requirements of AS/NZS 1554.3 and NZS 3109: clause 3.7.2, Welded splices, in respect of developed strength and location. Welds shall not be permitted at bends in bars, and welding shall be carried out so that no undercutting of bar sizes occur.

3.13 MECHANICAL SPLICES Use only where shown on drawings. Use the appropriate sleeve size and length, swaged

onto the bars using correct die and hydraulic press all to the manufacturer's requirements. Notify when ready for inspection and carry out tests if required.

3.14 STEEL SPACERS Fix spacers between layers of wall reinforcement at 1.0 metre centres minimum.


3.15 REINFORCEMENT COVER TO NZS 3101.1 Minimum cover to all reinforcing bars, stirrups, ties and spirals, as shown on drawings.

Where cover is not shown on drawings provide minimum cover to NZS 3101.1, table 3.6, Minimum required cover for a specified intended life of 50 years. Sub-soil cover to NZS 3101.1, to suit soil and groundwater conditions. Fix chairs for top reinforcement in slabs at 1.0 metre centres or to ensure adequate support. Cover tolerances to NZS 3109, 3.9, Tolerances for reinforcement.

3.16 TOLERANCES, COVER Tolerances on cover relative to the values in NZS 3109: clause 3.9 Tolerances for

reinforcement. Tolerances shall be +5mm all positions, but in no case shall cover be less than that shown on the drawings.

3.17 FIX CHAIRS Fix chairs for top reinforcement in slabs at 1.0 metre centres or to ensure adequate

support. 3.18 CONCRETE SPACER BLOCKS Where required in exposed concrete work, make from same materials and mix as the

surrounding concrete. 3.19 WELDED WIRE FABRIC GENERALLY - LAPS Laps to NZS 3101, lap one mesh square plus 50mm minimum (do not count bar

extensions beyond the outermost wire). Tie all mesh sheets together at the laps. Completion 3.20 REMOVE Remove all debris, unused materials and elements from the site. 4. SELECTIONS 4.1 REINFORCEMENT LAPS Where reinforcement laps are not shown on the drawings, lap as follows:

Bar Diameter Grade 300E deformed Grade 500E deformed

10mm 400mm 650mm

12mm 500mm 750mm

16mm 650mm 1000mm

20mm 800mm 1250mm

25mm 1000mm 1600mm

32mm 1200mm 2000mm

© CIL Masterspec 2017 MAY 3121 CONCRETE PLACEMENT

3121 CONCRETE PLACEMENT 1. GENERAL This section relates to the handling, placing and curing of concrete. 1.1 RELATED SECTIONS Refer to 3105 CONCRETE COMMON REQUIREMENTS for general matters Refer to 3111 FORMWORK FOR CONCRETE for formwork Refer to 3112 REINFORCEMENT FOR CONCRETE for reinforcement Refer to 3124 FINISHES TO WET CONCRETE for concrete finishing Refer to 3129 CONCRETE PRODUCTION for concrete production Documents 1.2 DOCUMENTS REFERRED TO Documents referred to in this section are listed in 3105 CONCRETE COMMON

REQUIREMENTS. 2. PRODUCTS Materials 2.1 CONCRETE MIXES Refer to 3129 CONCRETE PRODUCTION. Equipment 2.2 VIBRATION EQUIPMENT Provide vibration equipment as required by NZS 3109. 3. EXECUTION Conditions 3.1 UNFAVOURABLE CONDITIONS Do not place concrete in high winds or other unfavourable conditions. Refer to NZS

3109: 7.2 Unfavourable conditions, for when concrete may not be placed. Remove and make good concrete damaged by frost, dry and wet conditions.

3.2 DEFECTS Reject concrete with structural defects. Immediately after stripping formwork, identify all

defects and obtain direction. Do not carry out any repair work until directed and then only in accordance with the direction. Repair defects by cutting out, making good and replacing, or otherwise as directed.

3.3 EXISTING WORK Protect existing work from damage and make junctions to existing work as detailed. 3.4 INSPECTIONS BY BUILDING CONSENT AUTHORITY Notify for inspection sufficiently in advance before placing concrete and any necessary

rectification of formwork, reinforcement and construction joint stops. Pour concrete only between properly positioned stops.

3.5 INSPECTIONS BY CONSTRUCTION REVIEWER Submit Concrete pour schedule to the engineer, and re-submit amendments as

necessary. Notify for inspection sufficiently in advance before adjustment of formwork, reinforcement and construction joint stops, and placing concrete. Pour concrete only between properly positioned stops.


3.6 PREPARATORY WORK Ensure at the time of placing, that surfaces to receive the concrete are clean, free of

debris and with no free water present. Thoroughly clean reinforcement to remove any release agent or other deleterious surface deposit.

3.7 WETTING OF FORMWORK To NZS 3109: clause 7.3, Preparation for concreting, subclause 7.3.2. Application 3.8 BUILD IN FIXINGS Refer to 3105 CONCRETE COMMON REQUIREMENTS 3.9 CONSTRUCTION JOINTS To NZS 3109: clause 5.6, Construction joints, 5.6.3, Types of joints, Type B, unless

directed otherwise for particular minor areas. Prepare joints to produce the required type B roughened surface.

3.10 PROTECT CONCRETE WORK Protect formwork, reinforcement, 'built in' items and fresh concrete from damage, as the

pour is placed, making good any damage if it occurs. 3.11 TRANSPORT CONCRETE Transport concrete from agitator to final placement as quickly as possible using means

that avoid segregation. 3.12 PLACE CONCRETE Place concrete in layers not more than 500mm deep, compacted and vibrated. Do not

place fresh concrete against the preceding layer after more than 45 minutes, or such lesser time as required by the circumstances, to NZS 3109: clause 7.4, Handling and placing. When placing concrete on steel form decks ensure that free water is displaced rather than trapped.

Do not pour on ground if temperature is below 5°C. 3.13 COMPACT CONCRETE To NZS 3109: clause 7.6, Compaction. Compact by vibration of the concrete to expel

entrapped air and until settlement of the concrete is visibly evident over all areas of the surface. Maintain vibration until settlement ceases and coarse aggregate at the surface is embedded. Do not continue vibration beyond reaching this condition.

3.14 VIBRATORS Use sufficient immersion vibrators, with one spare for emergency, to ensure that vibration

is achieved throughout the entire volume of each layer of concrete, and until complete compaction is reached, to NZS 3109: clause 7.6, Compaction. Insert vibrators at points approximately 500mm apart, and withdraw slowly after compaction.

Finishing 3.15 SCREED THE SURFACE Screed the concrete surface by straight edge or vibrating screed immediately after

compaction and to tolerances in NZS 3109: table 5.2, Tolerances for in situ construction. Tolerances in NZS 3109 are not always appropriate. Modify the above clause to include

specified tolerances when justified. 3.16 SAW CUTS Cut slabs where indicated on the drawings and as required to control shrinkage cracking.

Carry out cutting as soon as possible, without causing tear-out of aggregate and before shrinkage cracking has occurred, generally within 24 hours of pouring. Where saw cuts are made, cut out 100mm of every second wire of the mesh for a length of 50mm each side of the saw cut position. Saw cuts: 1/3rd slab depth or 30mm minimum. Refer to SELECTIONS for spacing of sawcuts.


3.17 SURFACE FINISH Refer to 3124 FINISHES TO WET CONCRETE Curing 3.18 WET COVERINGS CURING METHOD Cover the whole of the concrete work being cured, including edges with hessian, or

similar, and keep continuously moist so that a film of water remains on the concrete surface throughout the curing period.

3.19 CURING PERIOD Cure all concrete of normal cement type and mixing proportions for a minimum of 7 days.

Keep time between placing of concrete and the start of curing to an absolute minimum. Ensure curing is continuous.

3.20 KEEP FORMWORK MOIST Keep formwork left in place continuously moist by sprinkling with water over the curing

period. Continue sprinkling the exposed surface if the formwork is removed before the end of the curing period.

3.21 SECURE COVERINGS When covering with sheet materials, ensure that edges are well secured throughout the

specified curing period, to prevent draughts passing over the surfaces of the concrete. Protection 3.22 COLD WEATHER Do not use coverings employing water at times of freezing weather. 3.23 PROTECT PLASTIC CONCRETE Protect plastic concrete from indentation and surface marking. 3.24 PRECAUTIONS TO PREVENT PLASTIC SHRINKAGE CRACKING Use one or more of the following methods to suit the conditions. - dampen sub-grades and forms ensuring any excess water is removed prior to placing

concrete. - in hot weather, lower the temperature of the fresh concrete by using cool aggregates

and chilled mixing water. - add polypropylene fibres to the concrete mix. - erect wind breaks to reduce wind velocity over the concrete surface. - use aliphatic alcohols sprayed over the surface prior to and after finishing before curing

can commence to reduce rate of evaporation from the surface. - commence curing promptly after finishing is complete and ensure the surface is subject

to continuous curing. 3.25 RE-VIBRATION OF CONCRETE Where plastic cracking becomes evident before the concrete has taken its initial set, re-

vibrate the concrete over the full depth of the cracks. 3.26 PRECAUTIONS TO PREVENT PLASTIC SETTLEMENT CRACKING Plastic settlement cracks may be prevented, or closed, by re-vibrating the concrete after

settlement is virtually complete and before initial set. 3.27 CHANGES IN SECTION Where there is a significant change in section, the method of placing may be adjusted to

compensate for the different amounts of settlement. If the deep section is poured first to the underside of the shallow section, this concrete can be allowed to settle before the rest of the concrete is placed. However, the top layer must be well vibrated into the bottom layer.

3.28 PROTECT HARDENED CONCRETE Protect surfaces of stripped concrete from damage especially; - at arrises


- mechanical disturbance - chemical reactions with other construction materials - vehicular traffic and scaffolding 3.29 PROTECT EXPOSED SURFACES Protect from rust marks and other surface disfigurements. Completion 3.30 CLEAN AND DRESS Clean and dress all surfaces, leaving them to the standard of finish specified for the work

to follow. 3.31 CLEAN UP Clean up surrounding areas. Dispose of surplus concrete away from the site. 3.32 REMOVE Remove all debris, unused materials and elements from the site. 4. SELECTIONS Materials 4.1 SAW CUTS Spacing of sawcuts:

Floor situation: Maximum spacing of sawcuts both ways

Architectural, exposed floor, thin finishes, rigid finishes: 4m

Carpet on underlay flooring: 6m

Supermarket floor: 5m

© CIL Masterspec 2017 APR 3124 FINISHES TO WET CONCRETE

3124 FINISHES TO WET CONCRETE 1. GENERAL This section relates to the standard of concrete finishes, exposed aggregate surfaces,

floors and pavements, plain and textured. 1.1 RELATED WORK Refer to ~ for ~ Documents 1.2 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: NZBC D1/AS1 Access routes NZS 3114 Specification for concrete surface finishes NZS 3121 Water and aggregate for concrete AS 4586 Slip resistance classification of new pedestrian surface materials Requirements 1.3 QUALIFICATIONS Workers to be experienced, competent and familiar with the materials and techniques

specified. 1.4 PROVIDE SAMPLE PANEL Provide a sample panel of the following specified finishes before commencing work.

Panels to be of similar thickness to the proposed construction. Refer to SELECTIONS for type of sample panel required.

1.5 CAST SAMPLE PANELS Cast sample panels to the requirements of NZS 3114: clause 104.4, Sample reference

panels in respect of casting, formwork, mix, compaction, curing, striking and including rebates. Supply also the information required by that same clause.

1.6 COLOUR VARIATION Keep inherent shade variations within the range of the grey scale in NZS 3114. Obtain

written instructions regarding the colour established in the sample reference panel for matching.

1.7 TECHNIQUE DISCUSSION Before casting the sample panel arrange a meeting to confirm the method of preparing

the sample. After agreement that the sample panel is truly representative of the finish specified and can be produced on site, it then becomes the standard for that finish.

1.8 SLIP RESISTANCE – SURFACES EXEMPT FROM TESTING Slip resistance for walking surfaces comply with NZBC D1/AS1, Table 2 1.9 SLIP RESISTANCE - TESTED SURFACE Slip resistance for the following walking surfaces have previously been tested and comply

with NZBC D1/AS1 requirements for testing. ~ 1.10 TEST - SURFACES REQUIRING SLIP RESISTANCE TESTING Test samples for slip resistance to comply with NZBC D1/AS1, 2.1, Slip resistance. Refer

to SELECTIONS for surface to be tested, minimum test value required and test method. Provide test results to contract administrator, including a statement that the surface complies with nominated test requirements.


1.11 RUN OFF Ensure run off acids, other chemicals and cement products are contained within the site.

They must not damage other surfaces, enter drains or pollute landscapes or water courses.

2. PRODUCTS 2.1 EXPOSED AGGREGATE GRADE To NZS 3121. Crushed or pebble/round aggregates for exposing, to be gap graded for

integral mixes. 2.2 SURFACE RETARDER Proprietary spray on chemical to slow down the surface set for exposing aggregate. 2.3 CONCRETE COLOUR Proprietary natural oxides added to the concrete at mixing. Refer to SELECTIONS for

brand and colour. 2.4 SEALERS Proprietary penetrating or surface sealers. Refer to SELECTIONS for brand and type. 2.5 SPECIAL EFFECTS Selected materials used to provide additional decorative effects for horizontal concrete.

Refer to SELECTIONS for type. 2.6 ACID WASH Proprietary acid wash. 3. EXECUTION Conditions 3.1 RESPONSIBILITY Take responsibility for determining the method of producing the specified finished

surface. 3.2 PROTECTION Protect and maintain the specified finish where necessary during any handling, erection

or subsequent construction operation to ensure a clean undamaged surface at completion of the contract works.

3.3 GENERAL Except where noted otherwise on the drawings or in the specification, tolerances in

regard to colour and surface to the requirements of NZS 3114 for each finish specified. 3.4 SURFACE TOLERANCES Variations from a plane surface are defined as follows: Abrupt: Steps or irregularities caused by displacement of form joints and

measured between peak and hollow over a 200mm straight edge. Gradual: Undulations over the surface and measured between rise and hollow

over a 1500mm straight edge. 3.5 RISKS OF CRACKS FORMING Ensure substrate is free of cracks. Follow correct procedures for curing to minimise

cracks forming that may mar the finish quality. Application 3.6 FLOOR AND EXTERIOR PAVEMENT, UNFORMED FINISHES

CLASS REQUIREMENTS

U1 class Screeded finish to NZS 3114: clause 305.1, U1 finish, with abrupt changes not exceeding 5mm and gradual variations not exceeding 10mm.


U2 class Floated finish to NZS 3114: clause 305.2 U2 finish, with abrupt changes not exceeding 3mm and gradual variations not exceeding 5mm.

U3 class Trowelled finish to NZS 3114: clause 305.3, U3 and U4 finishes, with abrupt changes not exceeding 3mm and gradual variations not exceeding 5mm.

U5 class Shallow textured to NZS 3114: clause 305.2, U5 finish, with abrupt changes not exceeding 3mm and gradual variations not exceeding 5mm.

U5E class Exposed aggregate shallow textured to NZS 3114: clause 305.2, U5 finish, with abrupt changes not exceeding 3mm and gradual variations not exceeding 5mm.

U10 Special textured to NZS 3114: clause 305.2, U 10 finish, architectural effects.

U11 class Ground finish to NZS 3114: clause 305.2, U11 finish, with no abrupt changes and gradual variations not exceeding 3mm.

Finishing 3.7 GENERAL Achieve the standard of the specified finish required, direct from the formwork with a

minimum of attention to the stripped surface. 3.8 MINOR SURFACE DEFECTS Repair minor surface defects to match the shade and texture of the surrounding concrete. 3.9 PAINTED SURFACES Fill minor surface defects with approved plaster stopping compound/cellulose filler and

rub down to match the texture of the surrounding concrete. 3.10 SURFACE TREATMENT Bagging or stoning of the surface only to proceed following written instructions. Exposed aggregate 3.11 ADDING AGGREGATE Add aggregates to the concrete at mixing. 3.12 SEEDING AGGREGATE Spread evenly over the poured slab when bleed water has evaporated. Fully embed

aggregate by tamping and repeatedly working the surface with a wood float. 3.13 EXPOSING AGGREGATE - BROOM AND WASH At the appropriate time use a continuous water spray and medium bristled brush to

remove surface cement paste. 3.14 EXPOSING AGGREGATE - RETARDER AND WASH Spray retarder on slab to manufacturers recommendations, and leave for the prescribed

time to provide desired exposure depth. At the appropriate time use a suitable mild acid wash to remove surface cement paste. Wash thoroughly with water.

3.15 EXPOSING AGGREGATE - ABRASIVE BLASTING Sand blast or shot blast hardened concrete. Colour concrete 3.16 COLOUR CONCRETE - WET MIX Add coloured oxides to the concrete to the wet mix, to the manufacturers

recommendations. 3.17 COLOUR CONCRETE - AFTER PLACING Apply (as a dry shake) pigments or liquids to the wet surface after placing.


Sealer 3.18 SEALER Apply selected sealer to the manufacturers recommendations. Special effects 3.19 DECORATIVE SAW CUTS Decorative saw cuts: - 2mm to 3mm deep - 6mm to 10mm width - wider saw cuts can be grouted with coloured grouts - narrow saw cuts can be left without grout - grooving to be formed with multiple saw cuts. 3.20 SPECIAL EFFECTS - PATTERNS ON SURFACE Apply a coloured hardener powder to the wet concrete surface and make a pattern with

rubber mats or metal stamps to produce the effect. Refer to SELECTIONS. 3.21 SPECIAL EFFECTS - WET SURFACE Create special effects by placing items onto the surface of the wet concrete and/or rolling

or profile screeding. Refer to SELECTIONS. Acid washing 3.22 ACID WASHING - REMOVE STAINS Acid wash using muriatic acid to remove stains from the concrete and to prepare the

surface for staining. To be applied by experienced contractors. 3.23 ACID WASHING - COLOURED STAINS/PATTERNS Apply acid with opaque or semi-transparent coloured stains to create patterns and

designs to old or new concrete floors. To be applied by experienced contractors. Refer to SELECTIONS.

© CIL Masterspec 2017 APR 3131 PRECAST CONCRETE PANEL SUPPLY

3131 PRECAST CONCRETE PANEL SUPPLY 1. GENERAL This section relates to precast concrete panel manufacture and supply. 1.1 RELATED SECTIONS Refer to 3105 CONCRETE - COMMON REQUIREMENTS for general matters Refer to 3111 FORMWORK FOR CONCRETE for formwork Refer to 3112 REINFORCEMENT FOR CONCRETE for reinforcing Refer to 3121 CONCRETE PLACEMENT for concrete placement Refer to 3124 FINISHES TO WET CONCRETE for finishes Refer to 3129 CONCRETE PRODUCTION for concrete Refer to 3141 PRECAST CONCRETE PANEL INSTALLATION for erection and

installation of precast Documents 1.2 DOCUMENTS REFERRED TO Documents referred to in this section are listed in 3105 CONCRETE - COMMON

REQUIREMENTS. In addition the following documents are specifically referred to in this section:

NZBC D1/AS1 Access Routes AS 4586 Slip resistance classification of new pedestrian surface materials WorkSafe NZ Approved Code of Practice for Safe Handling, Transportation and

Erection of Precast Concrete 1.3 Requirements 1.4 PREPLANNING Prior to shop drawing/manufacture of the precast panels liaise with the relevant parties to

ensure installation/on-site requirements are coordinated with the panel production. These should include, but not limited to;

- construction and erection sequences - transport and erection processes and equipment required for lifting, handling or stacking - lifting inserts and other inserts required - access for cranes and trucks, clearance and obstructions, loads to be applied to the

ground or structures by cranes or trucks - loads to be applied from temporary propping or bracing, suitable foundations or

supports for propping and bracing - temporary loads to be applied from storing or stacking precast elements 1.5 SHOP DRAWINGS Refer to the general section 1235 SHOP DRAWINGS for the requirements for submission

and review and the provision of final shop drawings. Provide shop drawings to show the general arrangement including, but not be limited to: - size, spacing and cover of reinforcement - details, position and layout of cast in items, including those for, lifting, handling,

fastening and connecting - details of panel edges - surface finish requirements and locations - location and size of rebates, recesses and penetrations - grout ducts - concrete mix requirements and strength - concrete volume and weight of finished unit for lifting - for insulated panels, details of insulation, low conduction connectors/ties, vapour barrier If requested provide the following additional information: ~


Submit shop drawings for review to ~. - ~ working days (at least) before fabrication is planned to commence, provide shop

drawings for review. - Do not commence fabrication of any panel before shop drawing review of the panel is

complete. - Shop drawing review (and subsequent fabrication) can be carried out on an agreed

sectional/staged basis. 1.6 MANUFACTURERS STATEMENT OF COMPLIANCE Provide a Manufacturer's Statement of Compliance from the Approved Code of Practice

for the Safe Handling, Transportation and Erection of Pre-Cast Concrete. 1.7 PANEL SURFACE Use appropriate mould materials, moulding systems and casting methods to achieve the

specified surface finishes. Refer to SELECTIONS for surface finishes. 1.8 QUALIFICATION, PRECAST MANUFACTURE Precast concrete panels manufactured by either; - a Precast NZ Certified Plant - or an off-site precast manufacturer with, an established record of panel production to a

similar standard, suitable plant and an appropriate quality assurance system. Use only precast concrete workers skilled and experienced in precast panel production. Performance – Panel design (design by contractor) 1.9 PRODUCER STATEMENT - DESIGN If structural design of the precast panels is the responsibility of the Contractor, provide a

producer statement (PS1) from a suitably qualified person. 2. PRODUCTS Materials 2.1 CONCRETE To NZS 3104. Refer to 3129 CONCRETE PRODUCTION for concrete supply and to SELECTIONS for

concrete strength. 2.2 GRADE 300E STEEL To AS/NZS 4671. Round bars are shown by symbol "R" and deformed bars by symbol

"D", followed by the diameter in millimetres. 2.3 GRADE 500E STEEL To AS/NZS 4671. Round bars shown by symbol "HR" and deformed bars by symbol

"HD" followed by diameter in millimetres. 2.4 WELDED WIRE FABRIC Hard drawn steel wire spot welded with correct gauge to AS/NZS 4671, smooth or

deformed and to the spacings and dimensions either specified or shown on the drawings. Any 500E mesh to AS/NZS 4671 as modified by NZS B1/VM1. 2.5 SPACERS AND CHAIRS Precast concrete or purpose made moulded PVC to approval. Where concrete spacer

blocks are used in exposed concrete work use blocks matching surrounding concrete. Components 2.6 LIFTING INSERTS Proprietary lifting inserts to the Approved Code of Practice for the Safe Handling,

Transportation and Erection of Pre-Cast Concrete, minimum finish galvanised mild steel.


2.7 CAST IN STEEL ITEMS Cast in items as detailed and required. Ensure items are prefinished where required. 3. EXECUTION Conditions 3.1 HANDLE, TRANSPORT AND STACK Handle, transport and stack panels to ensure support that avoids distortion and stress

and at the same time protects the finished surfaces from chipping, scoring, cracking or other disfigurement. Storage methods and packing between panels should minimise colour variations to exposed surfaces.

Arrange delivery and erection of precast panels to minimise handling, storage or restacking on site.

3.2 TOLERANCES, OFF-SITE PRECAST, STANDARD Manufacture panels with tolerances to NZS 3109, table 5.1, Tolerance for precast

components. Application 3.3 SECURE REINFORCEMENT Secure adequately with tying wire, spacers or other suitable means, and place accurately

where detailed, supported and secured against displacement. Ensure minimum concrete cover is maintained.

3.4 CONCRETE PLACING Carefully place concrete to ensure all parts of the mould are completely filled and full

contact is made with the mould surface. Use appropriate compaction techniques to achieve the required finish.

3.5 CASTING IN ITEMS Accurately cast in all embedded items and fixings as detailed, all securely located to

avoid displacement during concrete placement and compaction. Where bolts are cast in, also provide the nut (free moving on the bolt).

3.6 CURING Confirm in writing the system to be used for curing concrete. Cure panels, for a minimum

of 7 days and until minimum strength is achieved for safe lifting, handling, transportation and erection. Keep the time between casting and the start of curing to an absolute minimum. Apply a fine spray of water continuously over the curing period through a system of nozzles placed to cover the whole of the panels being cured.

4. SELECTIONS 4.1 CLADDING PANELS Location: ~ Supplier: ~ Aggregate size: ~mm Slump: ~mm maximum Cement content: ~ Kg/m³ maximum 28 day strength: ~ MPa Admixture: ~ Formed finish: ~ Unformed finish: ~ 4.2 STRUCTURAL PANELS Location: ~ Supplier: ~ Aggregate size: ~mm Slump: ~mm maximum Cement content: ~ Kg/m³ maximum 28 day strength: ~ MPa


Admixture: ~ Formed finish: F5 Unformed finish: U3

© CIL Masterspec 2017 3141 PRECAST CONCRETE PANEL INSTALLATION

3141 PRECAST CONCRETE PANEL INSTALLATION 1. GENERAL This section relates to concrete precast panel installation on site. 1.1 RELATED SECTIONS Refer to 3105 CONCRETE COMMON REQUIREMENTS for general matters Refer to 3131 PRECAST CONCRETE PANEL SUPPLY for supply. Documents 1.2 DOCUMENTS REFERRED TO Documents referred to in this section are listed in 3105 CONCRETE - COMMON

REQUIREMENTS. In addition the following documents are specifically referred to in this section:

WorkSafe NZ Approved Code of Practice for the Safe Handling, Transportation and Erection of Pre-Cast Concrete.

Requirements 1.3 PREPLANNING Prior to shop drawing/manufacture of the precast panels liaise with the precast

manufacturer and other relevant parties, to ensure installation/on-site requirements are coordinated with the panel production. These should include, but not limited to;

- construction and erection sequences - transport and erection processes and equipment required for lifting, handling or stacking - lifting inserts and other inserts required - access for cranes and trucks, clearance and obstructions, loads to be applied to the

ground or structures by cranes or trucks - loads to be applied from temporary propping or bracing, suitable foundations or

supports for propping and bracing - temporary loads to be applied from storing or stacking precast elements 1.4 SITE LOADINGS, PERMANENT STRUCTURE Provide details of any loads that will be applied to the permanent structure, or any

component that will form part of the permanent structure, to the Contract Administrator( and Engineer) at least 5 working days prior to the application of those loads. Also provide details of any methods proposed to lessen or distribute those loads.

1.5 QUALIFICATION, ON-SITE WORK Use only crane and rigging contractors skilled and experienced in the lifting, placing and

erection of precast panels. 2. PRODUCTS Components 2.1 GASKETS Proprietary type. 2.2 LEVELLING SHIMS Rigid plastic or other suitable levelling shims to Approved Code of Practice for the Safe

Handling, Transportation and Erection of Pre-Cast Concrete. Accessories 2.3 SEALANTS Polysulphide, polyurethane or silicone gap filling proprietary sealants.


2.4 WATERPROOFING FOR EXTERIOR OPENINGS Unreinforced wet area membrane to AS/NZS 4858 for waterproofing around openings for,

windows, doors, meters and other services openings, at or above floor level, also parapets and ends of masonry walls abutting other claddings, to CCANZ CP 01. Refer to SELECTIONS.

Do not use bituminous coatings. 3. EXECUTION Conditions 3.1 SETTING OUT Confirm panel dimensions, set out and site conditions. Also check starter bars, grout

tube positions and fixing points. Confirm that foundations, dead men, and all supports for temporary propping or bracing

are up to strength and capable of resisting the applied loads prior to commencing erection of panels.

3.2 TOLERANCES, ON - SITE EXECUTION Locate precast items to the following tolerances: Plan: ± 10mm Vertical: ± 1mm/metre Panel Joint width: ± 1mm/metre; but no panel joint shall be less than 10mm, or more

than 20mm (unless indicated otherwise on drawings) 3.3 INSTALLATION Carry out work in accordance with the Approved Code of Practice for the Safe Handling,

Transportation and Erection of Pre-Cast Concrete. In particular isolate and secure any “drop zones” where panels may fall in the event of a failure of any item of equipment or fastening.

Prior to lifting any panels from the truck, check and make a record of any damage to the panels, and obtain approval from the Contract Administrator before incorporating a damaged panel into the work.

3.4 LIFTING Carry out work in accordance with the Approved Code of Practice for the Safe Handling,

Transportation and Erection of Pre-Cast Concrete. Mobile crane positions to be arranged and prepared prior to panel delivery to provide

suitable clearances from power lines, trees and any obstructions for all operations including lifting and positioning. Ensure the crane has adequate capacity and is suitable for all aspects of the erection process.

Check that all necessary attachments; strong backs, materials and equipment for rigging, reorienting, propping or bracing and fastening etc, are on site and available prior to delivery of the panels.

Panels are to remain attached to the crane until they are either fully fixed into their final position or adequately secured by temporary means.

3.5 PROPPING AND BRACING Provide temporary adjustable props or braces to secure the panel in position until final

support is provided. They must be able to withstand the expected wind loads on the panel for the site and position.

3.6 PLACING On positioning of the panel, check that all reinforcing and fixings line up with the

appropriate items on the preceding work. Also check fixings will function as intended, in particularly fixings required to accommodate seismic movement. Ensure that there is no damage caused to the panel, surrounding surfaces or fixings during placing.

3.7 FINAL POSITION Adjust panels into final position, check alignment, verticality, joint widths etc and fix into

place.


3.8 GROUT DUCTS Fill grout ducts with expansive grout, ensure ducts are completely filled. 3.9 POST PLACING ADJUSTMENTS After permanent placing check and adjust as necessary; - all fixings for correct alignment and operation, and check the torque on all nuts and bolts

- not less than 1 day after final fixing - recheck that all props, braces and fastenings are secure and capable of performing as

required - not less than 1 day and not more than 7 days after a panel is fixed into position and held by temporary means.

- if panels are subject to, high wind loads, unintended or accidental loads during construction, recheck props braces and fastenings.

Finishing 3.10 FIT GASKETS Fit gaskets to panel joints in sequence and achieve the flexibility required by the gasket

manufacturer. 3.11 SEALANTS Ensure at time of erection, that the limits of acceptable joint variation (from the

manufacturer's requirements) for each product are maintained. Prepare joints, protect adjoining surfaces, seal joint surfaces, fit limiting rods and insert sealant to the gasket manufacturer's requirements and temperature limits.

Completion 3.12 CLEAN AND DRESS Clean and dress panels externally and internally to leave them to the standard of finish

specified and without blemish, ensuring following work can be completed to the required standard.

3.13 REPAIRS Do not repair or patch damage to panels without written approval. 3.14 WATERPROOFING EXTERIOR OPENINGS Apply waterproofing to the exposed face of openings for windows, doors, meters etc, also

if necessary the top of parapets/balustrades and ends of masonry walls abutting other claddings. To CCANZ CP 01, waterproofing manufacturer's requirements and as detailed.

Provide temporary protection from direct sunlight. 3.15 CLEAN UP Clean up surrounding areas of trade waste and remove temporary works required for the

installation of the precast concrete items. 3.16 REMOVE Remove debris, unused materials and elements from the site.

© CIL Masterspec 2017 3181CC CANZAC CONCRETE ACCESSORIES

3181CC CANZAC CONCRETE ACCESSORIES 1. GENERAL This section relates to the supply and installation of the CANZAC

® range of concrete slab

accessories. It includes: - wet curing blanket Note: This section must be used in conjunction with NZS 3101.1, NZS 3109 and the

appropriate CONCRETE section(s) specifications. Documents 1.2 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: NZS 3101.1 Concrete structures standard NZS 3109 Concrete Construction AS/NZS 4671 Steel reinforcing materials 1.3 MANUFACTURER/SUPPLIER DOCUMENTS Manufacturer's and supplier's documents relating to this part of the work: CANZAC

® Technical Manual

UltraCure NCF™ Installation Instructions Manufacturer/supplier contact details Company: CANZAC Ltd Web: www.canzac.com Email: [email protected] Telephone: 03 343 4254 Warranties 1.4 WARRANTY - MANUFACTURER/SUPPLIER Provide a material manufacturer/supplier warranty: 10 years: For CANZAC

® Joint Free Slab System

- Provide this warranty on CANZAC Ltd standard form. - Commence the warranty from the date of practical completion of the contract works. Refer to the general section 1237 WARRANTIES for additional requirements. 1.5 WARRANTY - INSTALLER/APPLICATOR Provide an installer warranty: 2 years: For installation - Provide this warranty on the installer standard form. - Commence the warranty from the date of practical completion of the contract works. Refer to the general section 1237 WARRANTIES for additional requirements. Requirements 1.6 CO-ORDINATION Refer to all drawings and calculations to ensure details required are provided for in the

installation of CANZAC® concrete accessories.

1.7 QUALIFICATIONS Installers to be experienced, competent trades people familiar with the materials and

techniques specified.


1.8 NO SUBSTITUTIONS Substitutions are not permitted to any of the specified systems, components and

associated products listed in this section. Compliance information 1.9 INFORMATION REQUIRED FOR CODE COMPLIANCE Provide the following compliance documentation: - Manufacturer's, importers or distributors warranty - Installer's warranty - Producer Statement - Construction from the installer - Producer Statement - Construction Review from an acceptable suitably qualified person - Other information required by the BCA in the Building Consent Approval documents. 2. PRODUCTS Wet curing blanket 2.1 WET CURING BLANKET UltraCure NCF™ Disposable Wet Cure Blanket. Comprised of a bio-degradable

moisture-retaining covering made from starch based polymers or oxo-biodegradable polymers together with an additive based film. Blanket is a natural coloured, non-staining cellulose fabric with an opaque and impervious coating applied to one side.

3. EXECUTION Conditions 3.1 DELIVERY, STORAGE AND HANDLING Take delivery of materials and goods and store on site and protect from damage. Protect finished surfaces from damage. Move/handle goods in accordance with manufacturer's requirements. Reject and replace goods that are damaged or will not provide the required finish. 3.2 PRE-INSTALLATION REQUIREMENTS Check work previously carried out and confirm it is of the required standard for this part of

the work. Installation - general 3.3 STANDARDS AND TOLERANCES Refer to the general section 1270 CONSTRUCTION for general requirements. 3.4 INSTALLATION GENERALLY Construction/installation must be carried out in accordance with CANZAC

® instructions to

NZS 3109. 3.5 QUALITY ASSURANCE Maintain quality necessary to assure that work is performed in accordance with this

specification and the qualifying requirements of CANZAC®.

Installation - wet curing blanket 3.6 INSTALL WET CURING BLANKET Install UltraCure NCF™ Disposable Wet Cure Blanket in accordance with UltraCure

NCF™ Installation Instructions, and as follows: - Place wet UltraCure NCF™ in widest practical width as soon as concrete has hardened

sufficiently to prevent surface damage, with sides and end lapped at least 75mm. - Immediately repair any holes or tears during curing period using wet cure material and

water. Cover entire surface including edges of paving and footpaths.


- Install UltraCure NCF™ in accordance with installation instructions. - Wet surface of slab on grade with 3.2mm to 6.35mm of water to cover entire surface of

slab, then slowly unroll product onto slab using a roller squeegee applicator. No portion of the product shall be reused once it has been applied to the concrete.

- Maintain UltraCure NCF™ in place on concrete for a period of not less than 7 days after placement. Continuous inspection for the purpose of maintaining 100% curing blanket contact with surface to be cured is recommended.

Important: Pull blanket up after 7 days. Completion 3.7 ROUTINE CLEANING Carry out routine trade cleaning of this part of the work including periodic removal of all

debris, unused and temporary materials and elements from the site. 3.8 DEFECTIVE OR DAMAGED WORK Repair damaged or marked elements. Replace damaged or marked elements where

repair is not possible or will not be acceptable. Leave work to the standard required for following procedures.

3.9 PROTECTION Provide the following temporary protection of the finished work: ~ 4. SELECTIONS For further details on selections go to www.canzac.com. Substitutions are not permitted to the following, unless stated otherwise. Wet curing blanket 4.1 ULTRACURE NCF™ WET CURING BLANKET

Location: ~ Supplier: CANZAC Ltd Brand/type: UltraCure NCF™ Disposable Wet Cure Blanket

© CIL Masterspec 2017 MAR 3411 STRUCTURAL STEELWORK

3411 STRUCTURAL STEELWORK 1. GENERAL This section relates to the fabrication and erection of structural steel framing and steel

framed buildings of a general nature. Documents 1.2 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: NZBC F5/AS1 Construction and demolition hazards AS/NZS 1252.1 High-strength steel fastener assemblies for structural engineering -

Bolts, nuts and washers - Technical requirements AS/NZS 1554.1 Structural steel welding - Welding of steel structures AS/NZS 1554.2 Structural steel welding - Stud welding (steel studs to steel) AS 1627.4 Metal finishing - Preparation and pre-treatment of surfaces - Abrasive

blast cleaning AS 1627.9 Metal finishing - Preparation and pre-treatment of surfaces - Pictorial

surface preparation standards for painting steel surfaces AS/NZS 2980 Qualification of welders for fusion welding of steel NZS 3404.1:1997 Steel Structures Standard AS/NZS 4680 Hot-dip galvanized (zinc) coatings on fabricated ferrous articles NZS 4781 Code of practice for safety in welding and cutting AS/NZS ISO 9001 Quality systems - Requirements AS 1111.1 ISO metric hexagon bolts and screws - Product grade C - Bolts AS 1111.2 ISO metric hexagon bolts and screws - Product grade C - Screws AS 1112.1 ISO metric hexagon nuts - Style 1 - Product grades A and B AS 1897 Electroplated coatings on threaded components (metric coarse series) AS 3828 Guidelines for the erection of building steelwork GANZ: Galvanizing Association of New Zealand - After-Fabrication Hot Dip

Galvanizing. A practical reference for designers, specifiers, engineers, consultants, manufacturers and users

HERA R4-99 Specification for the fabrication, erection and surface treatment of structural steelwork

WorkSafe NZ Guidelines for the provision of facilities and general safety in the construction industry

1.4 CO-ORDINATION Refer to architectural, electrical and services drawings to ensure details and fixings

required are provided for in the structural steel work. 1.5 VERIFY DIMENSIONS Verify dimensions against site measurements prior to fabrication. For existing structures,

verify grade of steel and dimensions against site measurement. Requirements 1.6 QUALIFICATIONS Welding operators to be experienced, competent workers, qualified to AS/NZS 2980,

familiar with the materials and techniques specified. Comply with NZS 3404.1 and AS/NZS 1554.1. Welding operators to have passed the qualifications tests covering those welding positions required to complete the work as set out in NZS 4781. Provide evidence of qualifications on request.

Riggers to be experienced and competent workers, familiar with the materials and

techniques required. 1.7 SHOP DRAWINGS Provide shop drawings to show, but not be limited to:


- Design calculations - Fully dimensioned elevations of all elements (minimum scale 1:20) - Complete details of construction, connections and all support systems (minimum scale

1:10) - Dimensions of all typical elements - Jointing details and method of fixing between individual elements and between this

installation and adjacent work - Provision for thermal movement - Provision for seismic movement and movement under prevailing wind loads - Sequence of installation - Co-ordination requirements with other work - A full schedule of materials and finishes. Refer to the general section 1235 SHOP DRAWINGS for the requirements for submission

and review and the provision of final shop drawings. Performance 1.8 QUALITY ASSURANCE Maintain quality assurance programmes to AS/NZS ISO 9001 for both fabrication and

erection as necessary to assure that work is performed in accordance with this specification and the qualifying requirements of the contract documents.

1.9 INSPECTION Inspect fabrication and construction of the structure to NZS 3404.1. 1.10 MATERIAL CERTIFICATES Supply mill test certificates relating to mill sections, bolts and nuts or welding

consumables. High strength steel to be marked accordingly by the supplier before delivery.

1.11 TEST WELDING Non-destructive weld examination with method, extent and standards of acceptance to

AS/NZS 1554.1, Section 7 and NZS 3404.1, Appendix D. 2. PRODUCTS Materials 2.1 STRUCTURAL STEEL Comply with New Zealand, Australian, British or Japanese Standards for steel as required

by NZS 3404.1, section 2, including, type, category, and suppression of brittle fracture. Grade 300, except RHS sections Grade 350, unless noted otherwise on the drawings. Components 2.3 BOLTS, NUTS AND WASHERS Grade 4.6, screws AS 1111.2 and bolts to AS 1111.1. Grade 4.6 nuts to comply with AS

1112.1. Property Class 8.8 bolts and equivalent nuts and washers (high strength structural quality only) to comply with AS/NZS 1252.1. Hot-dip galvanize to AS/NZS 4680, bolts, nuts and washers forming a permanent part of a structure subject to a protective coating. Alternatively electrogalvanize to AS 1897.

Accessories 2.4 ELECTRODES To comply with and be selected for grade of steel being welded as required by AS/NZS

1554.1. 2.5 WELDING WIRE Welding wire as required by the manufacturer for materials to be joined and the welding

position.


2.6 FLUX Welding flux to be dry and from sealed containers. 2.7 STEEL STUDS Material for arc stud welding to comply with AS/NZS 1554.1 and AS/NZS 1554.2. 3. EXECUTION Conditions 3.1 GENERALLY Construct to NZS 3404.1, section 14 (fabrication) and section 15 (erection). Identify steel

to NZS 3404.1. 3.2 DEFECTS Discard any material or fabricated items showing defects affecting its structural integrity. 3.3 SURFACE FINISH Grind off burrs and sharp arrises. 3.4 TOLERANCES Comply with the tolerances laid down for holding down bolts, columns, beams and other

members in HERA R4-99 and NZS 3404.1. Comply with NZS 3404.1 for level and alignment of beams and alignment and plumbing of struts.

Structural elements to comply for straightness, length, full contact splices and struts not prepared for full contact with NZS 3404.1.

3.5 CARRY OUT ERECTION Carry out the erection of structural steel to the requirements of NZS 3404.1, section 15

Erection. Comply with NZBC F5/AS1: Construction and demolition hazards, and the WorkSafe NZ publication: Guidelines for the provision of facilities and general safety in the construction industry.

3.6 START ERECTION Start erection only when the holding down bolts and anchorages have been cast-in-place

long enough to achieve sufficient strength. 3.7 SAFETY DURING ERECTION Erection practices to comply with AS 3828. During erection make structure safe against

erection loading including loading due to erection equipment or its operation, and wind. 3.8 TEMPORARY BRACING Provide temporary bracing and restraint as required to make structure safe. Leave

temporary bracing and restraint in place until the erection is sufficiently advanced to allow safe removal of temporary bracing.

3.9 TEMPORARY MEMBERS FOR GALVANIZED ELEMENTS Provide temporary members, as required, to strengthen prefabricated elements likely to

be distorted by the subsequent hot dip galvanizing process. Co-ordinate, with the galvanizer, the details of any temporary members required.

Assembly 3.10 CUTTING Hand cut only where machine cutting is not possible. Cutting to comply with NZS

3404.1. Site cutting and welding are forbidden. Application 3.11 WELD FAILURE Comply with AS/NZS 1554.1 for detailed guidance on welding inspection and quality

control.


3.12 WELDING Carry out welding in accordance with AS/NZS 1554.1 and the additional requirements of

NZS 3404.1. Equipment to comply with AS/NZS 1554.1, clause 1.8.2. 3.13 WELDING GALVANIZED OR THERMAL SPRAYED STEEL When welding already Galvanized steel or Thermal Sprayed steel either: - remove coating locally and carry out a standard weld - leave coating and adjust welding technique to those recommended in GANZ After-

Fabrication Hot Dip Galvanizing document. (Among other things, this will generally mean a slower welding speed.)

Final weld shall meet all the standards and requirements of a standard weld. 3.14 WELDING SYMBOLS Welding symbols have not been used on the drawings. Unless denoted otherwise on the

drawings, shop weld touching or near-touching steelwork together all round with 6mm continuous fillet welds.

3.15 HOLING Comply with NZS 3404.1 for sizes, alignment, finishing, punching and flame cutting of

holes. 3.16 BOLTING Bolting, including high strength bolting to comply with NZS 3404.1, section 14.3.6.

Ensure that at least one clear thread shows above the nut and at least one thread run out is clear beneath the thread after tightening

3.17 BOLTING NOTATION Notation of bolting categories:

Bolting category

Bolt standard Property Class

Tension method

Tensioned joint type

4.6/S AS 1111.1 4.6 Snug tight

8.8/S AS/NZS 1252.1

8.8 Snug tight

8.8/TB AS/NZS 1252.1

8.8 Full tension Bearing

8.8/TF AS/NZS 1252.1

8.8 Full tension Friction

In bearing type connections where the thread position relative to the shear plane is to be controlled.

N - threads included in shear plane X - threads excluded from shear plane F - friction type joints - prepare faying surfaces 3.18 THREADS EXCLUDED FROM SHEAR PLANE Select length of bolts such that the threaded portion does not occur within the shear

plane between joined parts. 3.19 BASE PLATES Enlargement or site cutting of holes is not permitted. Bending or displacement of holding

down bolts is not permitted. 3.20 INSTALLATION OF COLUMNS Plumb columns using sawn steel packs and wedges not larger than necessary for the

purpose. Obtain written instructions when any column base needs to be raised by more than 25mm. Fill the space beneath the base plate with cement-sand grout, containing an approved non-shrink additive, having a minimum compressive strength of 30MPa at 28 days, or by the use of a dry pack of 1:2 cement:sand mortar hammered in tight to ensure complete filling of space.

Finishing


3.22 BRUSHING AND POWER TOOL CLEANING Remove oil and grease by the use of solvents. Scrape and power wire brush to a

minimum Class 2 finish to AS 1627.9. Clean to bright metal, but avoid producing a polished surface. Check that no burrs or sharp arrises remain which may prevent the full coating thickness being attained.

3.23 ABRASIVE BLASTING Remove oil and grease by the use of solvents. Abrasive blast clean to a Class 2.5 finish

to AS 1627.4. Clean to bright metal, but avoid producing a polished surface. Select grit type and equipment such that the cleaned surface profile between peaks and valleys does not exceed one third of the dry film thickness. Check that no burrs or sharp arrises remain which may prevent the full coating thickness being attained.

3.24 UNPAINTED SURFACES Do not paint: - Faying face of high strength friction grip (HSFG) bolted joints - Areas for site welding keeping 75mm clear all round - Surfaces for embedding in concrete. Where steel is only partly encased, then extend priming 30mm minimum into the concrete

encasement area. 3.25 REPAIR DAMAGED GALVANIZING OR THERMAL SPRAY Where Galvanizing steel or Thermal Spray on steel is damaged refer to sections 6781

HOT DIP GALVANIZING or 6782 METAL SPRAY CORROSION PROTECTION, for repair requirements.

4. SELECTIONS 4.1 SHOP DRAWINGS Shop drawings: Required

© CIL Masterspec 2017 MAR 3411D DHS PURLINS & GIRTS

3411D DHS PURLINS & GIRTS 1. GENERAL This section relates to the fabrication, erection and finishing of the Dimond Hi-Span

(DHS) cold formed, galvanized steel purlin and girt system; incorporating Dimond fastBRACE lock-in bracing.


documents are specifically referred to in this section: NZBC F5/AS1 Construction and demolition hazards AS/NZS 1252.1 High-strength steel fastener assemblies for structural engineering -

Bolts, nuts and washers - Technical requirements NZS 3404.1:1997 Steel Structures Standard AS/NZS 4680 Hot-dip galvanized (zinc) coatings on fabricated ferrous articles AS/NZS ISO 9001 Quality management systems - requirements AS 1111.1 ISO metric hexagon bolts and screws - Product grade C - Bolts AS 1112.1 ISO metric hexagon nuts - Style 1 - Product grades A and B AS 1397 Continuous hot-dip metallic coated steel sheet and strip - Coatings of

zinc and zinc alloyed with aluminium and magnesium AS 1897 Electroplated coatings on threaded components (metric coarse series) AS 3828 Guidelines for the erection of building steelwork WorkSafe NZ Guidelines for the provision of facilities and general safety in the

construction industry 1.3 MANUFACTURER'S DOCUMENTS Dimond Structural Systems Manual (web based Manual with dated update pages) Dimond Installation Guide - Purlin Systems Copies of the above literature are available from: Web: www.dimond.co.nz Freephone: 0800 346 663. Requirements 1.4 NO SUBSTITUTIONS Substitutions are not permitted to any specified system, or associated components and

products. 1.5 SHOP DRAWINGS Provide shop drawings. Refer to the GENERAL sections for the requirements for submission and review and the

provision of final shop drawings. 1.6 CO-ORDINATION Refer to architectural, electrical and services drawings to ensure details and fixings

required are provided for in the structural steel work. 1.7 VERIFY DIMENSIONS Verify dimensions against site measurements prior to fabrication. Performance 1.8 QUALITY ASSURANCE Maintain quality assurance programmes to AS/NZS ISO 9001 for both fabrication and

erection as necessary to ensure that work is performed in accordance with this specification and the qualifying requirements of the contract documents.


1.9 INSPECTION Inspect stages of fabrication and construction of the structure to NZS 3404.1. 2. PRODUCTS Materials 2.1 PURLINS AND GIRTS Dimond Hi-Span (DHS) roll formed purlins and girts, pre-punched for installation of

bracing channels and for connection to the purlin cleats. Manufactured from G450-500, Z275 galvanized steel to AS 1397. Size and thickness for the various locations as scheduled/as detailed on the drawings.

2.2 DIMOND FASTBRACE BRACING SYSTEM Dimond fastBRACE roll formed channels complete with end cleats and locking tabs.

Manufacture from G250, Z450 galvanized steel to AS 1397. Channel length for the various locations as scheduled/as detailed on the drawings.

Components 2.3 BOLTS, NUTS AND WASHERS Grade 4.6 bolts to comply with AS 1111.1. Grade 4.6 nuts to comply with AS 1112.1.

Property Class 8.8 bolts, and equivalent nuts and washers (high strength structural quality only) to comply with AS/NZS 1252.1. Hot-dip galvanized to AS/NZS 4680, bolts, nuts and washers forming a permanent part of a structure subject to a protective coating. Alternatively electrogalvanize to AS 1897.

3. EXECUTION Conditions 3.1 GENERALLY Construct to NZS 3404.1, section 14, Fabrication and NZS 3404.1, section 15, Erection.

Identify steel to NZS 3404.1. 3.2 DEFECTS Discard material showing visual defects affecting its structural integrity and/or

appearance. 3.3 DELIVERY, STORAGE AND HANDLING Keep components dry in transit. Store on a level firm base, clear of the ground, protected

from weather, contamination and damage and away from current work areas. Prevent water and condensation from being trapped between adjacent surfaces.

Do not drag components across each other and other materials. Protect edges and

surfaces from damage and ensure that section shape is not damaged during handling, storage or installation.

3.4 ERECTION GENERALLY Carry out the erection of DHS purlins, girts or associated bracing to the requirements of

AS 3828. Comply with NZBC F5 1: Construction and demolition hazards, NZS 3404.1 and the WorkSafe NZ publication: Guidelines for the provision of facilities and general safety in the construction industry.

3.5 NO GAS CUTTING OR WELDING Gas cutting of holes or welding of DHS purlins and girts is not permitted. 3.6 NO PREMATURE LOADING Correctly position and complete bracing and connections to primary structure before any

loads are applied.


Do not rely on bracing to perform structurally during craneage or pre-assembly. Provide additional temporary bracing as required.

Application 3.7 BOLTING Bolting to NZS 3404.1, section 14.3.6. 3.8 INSTALLATION OF DHS PURLINS Install and bolt into position as detailed on the drawings. 3.9 INSTALLATION OF DIMOND FASTBRACE SYSTEM Install tie rods to ridge purlins as detailed. Starting from the ridge, place the fastbrace with the bolted end nearest the ridge and bolt

up. Pass the other end through the bracing holes typically at mid span and lock into position with the next brace. Repeat and work down the roof slope.

© CIL Masterspec 2017 MAR 3419 STRUCTURAL STEEL QUALITY CONTROL

3419 STRUCTURAL STEEL QUALITY CONTROL 1. GENERAL This section relates to structural steel quality control of; - fabrication - erection - testing (including non-destructive examination) 1.1 RELATED WORK Refer to 3411 STRUCTURAL STEELWORK for steelwork construction 1.2 ABBREVIATIONS AND DEFINITIONS Refer to the general section 1232 INTERPRETATION AND DEFINITIONS for

abbreviations and definitions used throughout the specification. The following abbreviations apply specifically to this section: TF Friction type NATA National Association of Testing Authorities, Australia. Documents 1.3 DOCUMENTS Refer to the general section 1233 REFERENCED DOCUMENTS. The following

documents are specifically referred to in this section: AS 1111.1 ISO Grade metric hexagon bolts and screws Product grade C - Bolts AS 1112.3 ISO metric hexagonal nuts - Part 1: Style 1 - Product grades A and B AS/NZS 1163 Cold-formed structural steel hollow sections AS 1237.1 Plain washers for metric bolts, screws and nuts for general purposes -

General Plan AS/NZS 1252.1 High-strength steel fastener assemblies for structural engineering -

Bolts, nuts and washers - Technical requirements AS/NZS 1252.2 High-strength steel fastener assemblies for structural engineering -

Bolts, nuts and washers - Verification testing for bolt assemblies AS 1397 Continuous hot-dip metallic coated steel sheet and strip-Coatings of

zinc and zinc alloyed with aluminium and magnesium AS/NZS 1554.1 Structural steel welding - Welding of steel structures AS/NZS 1594 Hot rolled steel flat products AS 1710 Non-destructive testing - Ultrasonic testing of carbon and low alloy

steel plate and universal sections - Test methods and quality classification

AS 2074 Cast steels AS/NZS 2980 Qualifications of welders for fusion welding of steels NZS 3101.1 Concrete structures standard NZS 3404.1 1997 Steel structures Standard AS/NZS 3678 Structural steel - Hot rolled plates, floorplates and slabs AS/NZS 3679.1 Structural steel - Hot rolled bars and sections AS/NZS 3679.2 Structural steel - Welded I sections AS 3828 Guidelines for the erection of building steelwork AS/NZS ISO 3834 Quality requirements for fusion welding of metallic materials (Set) Requirements 1.4 QUALIFICATIONS Workers to be experienced, competent trades people familiar with the materials and

techniques specified. Welders to have the appropriate AS/NZS 2980 Welder Certificate (or equal) for the work

to be carried out. Provide evidence if required. 1.5 WELDING QUALITY CONTROL SYSTEM To AS/NZS ISO 3834 (set).


Welding work to be carried out to the appropriate level required by AS/NZS ISO 3834.1 and this section.

1.6 SUB-CONTRACTORS Submit names and contact details of proposed fabricator and installer. 1.7 SUBMISSIONS - STEEL If it is proposed not to use steel of New Zealand/Australian origin, submit documentation

that demonstrates that the steel complies and is suitable for fabrication to New Zealand standards.

Submit a manufacturers compliance/test certificate from an independent accredited

testing organisation confirming compliance with AS/NZS 1163, AS/NZS 1594, AS/NZS 3678. AS/NZS 3679.1, or AS/NZS 3679.2 as appropriate.

1.8 SUBMISSIONS - BOLTS If bolts, nuts and washers are manufactured outside New Zealand/Australia, provide a

local Telarc/NATA accredited laboratory independent compliance certificate based on appropriate testing and compliance. To AS 1237.1 generally and for high strength items to AS/NZS 1252.1, with assemblies to AS/NZS 1252.2.

1.9 TESTS Submit evidence that the steel used in the work complies with the cited material

standards. Acceptable evidence is certified mill test reports, or test certificates issued by the mill.

- If masonry anchors other than those shown on the drawings are required or proposed

for the support or fixing of structural steel, submit evidence of the anchor capacity to carry the load.

- If anchor bolts do not meet specified location tolerances, submit proposals that will allow steel erection to proceed.

- If splicing of structural members is intended, submit proposals. - Submit details of proposed welding procedures, using the WPS form in AS/NZS 1554.1,

Appendix C. - Identification marks - if members and/or connections are to be exposed to view submit

details of proposed marking. - Distortions - submit proposals for preventing or minimising distortion or galvanized

components, welded components or welded and galvanized components, and proposals for restoration to design shape.

1.10 SHOP DRAWINGS The following items are additional to items shown in 1235 SHOP DRAWINGS. - relevant details of each assembly, component and connection - information relevant to fabrication, surface treatment transport and erection Include the following information; - marking plans - identification - steel type and grade - required camber, where applicable - fabrication methods including, where applicable, hot or cold forming and post weld heat

treatment - location, type and size of welds and/or bolts and bolt holes - weld categories and bolting categories - orientation of members - surface preparation methods and coating system if shop applied - best practice details in relation to application of protective coatings - breather holes for hollow sections (with seal plates) being hot-dip galvanized - procedures necessary for shop and site assembly, and erection - location of and preparation for site welds - temporary works such as lifting lugs, support points, temporary cleats and bracing which

are required for transport and erection of the structural steelwork, and the procedure for final removal


- required fixings for adjoining building elements If alternative sections or connections are proposed, provide details. If it is proposed to support other than cladding on or from purlins and girts, provide

details. If variations to documented splice locations or if additional splices are proposed, submit

details. ~ Submit shop drawings for review to Jacobs NZ Ltd . - 20 working days (at least) before fabrication is planned to commence, provide shop

drawings for review. - Complete shop drawing review before commencing fabrication. Compliance information 1.11 INFORMATION REQUIRED FOR CODE COMPLIANCE Provide the following compliance documentation: - - Manufacturers, importers or distributors warranty - Installers warranty - Producer Statement - Construction from the installer - Producer Statement - Construction Review from an acceptable suitably qualified person - Other information required by the BCA in the Building Consent Approval documents. Quality control and assurance 1.12 INSPECTIONS Off Site Notice Give notice so that inspection may be made of the following; - materials including welding consumables before fabrication - submission of proposed welding procedure to prevent distortion and non-ductile welds

in tension zones - testing of welding procedures and welder qualification tests - commencement of shop fabrication - commencement of welding - before placement of root runs of complete penetration butt welds - completion of fabrication before surface preparation - surface preparation before shop painting - completion of protective coating before delivery to site On Site Notice Give notice so that inspection may be made of the following; - steelwork on site before erection - anchor bolts in position before casting in - steelwork and column bases erected on site, before grouting, encasing, site painting or

cladding - tensioning of bolts in categories 8.8/TB and 8.8/TF - reinforcement and formwork in place prior to any encasement - after any grouting, encasement, fire protection or site painting is completed 2. PRODUCTS Materials 2.1 STEEL TYPE AND GRADE Steel members and sections must conform to the steel grade (minimum) table and/or the

steel grade schedule. Steel Grade (minimum) table

Type of steel Grade


Universal beams and columns, parallel flange channels,large angles to AS/NZS 3679.1

300

Flat, small angles, taper flange beams and columns toAS/NZS 3679.1

250

Welded sections to AS/NZS 3679.2 300

Hot rolled plates, floor plates and slabs to AS/NZS 3678 250

Hollow sections to AS/NZS 1163:- circular sections less than 165mm nominal outside diameter- sections other than the above

C250/C350C350/C450

Cold formed purlins and girts to AS 1397 G550 Z350 or Z450G450 Z350 or Z450

Steel Grade (minimum) schedule

Type of steel Grade Cast steels to AS 2074 Hot-rolled plate to AS/NZS 1594

2.2 BOLTS, NUTS AND WASHERS To AS 1111.1, and AS 1237.1 generally, and for high strength items to AS/NZS 1252.1,

with assemblies to AS/NZS 1252.2. Hot-dip galvanized, corrosion free, and in serviceable condition.

2.3 ANCHOR BOLTS Design to NZS 3101.1,17.5.5. Hexagonal bolts to AS 1111.1, hexagonal nuts to AS

1112.3 and plain washers to AS 1237.1, all with Hot-dip galvanized finish. 2.4 SURFACE PREPARATION AND TREATMENT Refer to appropriate painting and protective coating sections. 3. EXECUTION Conditions 3.1 DELIVERY, STORAGE AND HANDLING Take delivery of materials and goods and store on site and protect from damage. Protect finished surfaces, edges and corners from damage. Move/handle goods in accordance with manufacturer's requirements. Reject and replace goods that are damaged or will not provide the required finish. Installation 3.2 STANDARDS AND TOLERANCES Refer to the general section 1270 CONSTRUCTION for general requirements. Shop

detail and fabricate members so that they can be properly erected, tolerances to NZS 3404.1: 1997, section 14 Fabrication.

Tolerances to be checked by measurement after fabrication when corrosion protection has been applied.

After erection is complete confirm compliance with NZS 3404.1. 3.3 BEAM CAMBER If beam members have a natural camber within the straightness tolerance, fabricate and

erect them with the camber up. 3.4 STRAIGHTENING If correcting distorted members, conform to the submitted procedures and avoid damage. 3.5 WORK EXPOSED TO VIEW Grind welds smooth but do not reduce the weld below its normal size. Grind fair those

corners and edges which are sharp, marred or roughened.


3.6 SITE WORK Other than work shown on the shop drawings as site work, do not fabricate modify or

weld structural steel on site. 3.7 IDENTIFICATION MARKS Provide marks or other means of identifying each member compatible with the finish, for

the setting out, location, erection and connection of the steelwork in accordance with the marking plans.

If the work includes more than one bolting category, mark high-strength structural bolted connections with a 75mm wide flash of colour, clear of holes.

Clearly mark material thickness on cold formed members. Weld categories 3.8 WELDING To AS/NZS 1554.1. Bolting 3.9 BOLTING Carry out in accordance with Bolting Category Schedule. For connections not

documented, submit proposals. For bolting category 8.8/TF, contact surfaces to be clean, as rolled and free from applied

finishes. 3.11 ANCHOR BOLTS Provide each anchor bolt with 2 nuts and 2 oversize washers and provide sufficient

thread to permit the levelling nut and washer to be set below the base plate. Set out bolt groups using templates and subject to survey check. For each group of anchor bolts provide a template with setting out lines clearly marked for positioning the bolts when casting in.

3.12 LOCK NUTS Provide lock nuts for bolts in moving parts or parts subject to vibration and for vertical

bolts in tension. 3.13 TENSIONING OF BOLTING CATEGORIES 8.8/TB AND 8.8/TF Use part turn of the nut or load indicating washers. 3.14 PERMANENT BOLTING Bolt only when correct alignment and preset or camber has been achieved. Erection 3.15 ERECTION To AS 3828. Ensure that every part of the structure has sufficient design capacity and is

stable under construction loads produced by the construction procedure or as a result of construction loads, which are applied.

If required to justify the adequacy of the structure to sustain any loads and/or procedures which may be imposed, provide calculations.

3.16 TEMPORARY WORK Provide all necessary temporary bracing or propping. If the required cleats are not shown

on shop drawings, submit details. Where temporary members are required, fix so as not to weaken or deface permanent steelwork. If hand flame cutting of bolt holes appear to be necessary, submit a report together with alternative options.

3.17 MOVEMENTS Allow for thermal movements during erection.


3.18 SITE WELDS Weld only when correct alignment and preset or camber has been achieved. If overhead

welding is required, submit proposals. 3.19 GROUTING AT SUPPORTS Before grouting steelwork which is to be supported by concrete or masonry, set steelwork

on packing or wedges. Form permanent packing or wedges with solid steel or grout of similar strength to the permanent grout. Remove temporary packing or wedges before completion of grouting.

Ensure grouting at supports is carried out before the construction of any supported floors, walls, roofing, wall cladding or precast.

Ensure grouting is not carried out if the temperature of the base plate or the footing surface exceeds 35°C.

3.20 HANDLING Handle members or components without overstressing or deforming them. Wrap or

otherwise protect members or components to prevent damage to surface finishes during handling and erection.

3.21 DRIFTING Use drifting only to bring members in position, without enlarging holes or distorting

components. 3.22 REPAIRS Repair finishes ensuring the full integrity of each phase and each coating. Completion 3.23 TEMPORARY CONNECTIONS Remove temporary cleats on completion and restore the surface. Commissioning 3.24 TESTING Conform to the non-destructive testing of bars and section schedule. 3.25 ULTRASONIC TESTING OF PLATES Quality level to AS 1710. Non-destructive testing of bars and sections schedule

Item to be tested Test method Other requirements

3.26 NON-DESTRUCTIVE WELD EXAMINATION To AS/NZS 1554.1. Inspect welds in accordance with the Non-Destructive Weld

Examination (NDE) table. Radiographic and ultrasonic inspection to be carried out by an independent testing authority.

Repair all welds revealed as defective by non-destructive examination and repeat examination.

Non-Destructive Weld Examination (NDE) Table

Type of weld and category

Examination method Extent (% of total length of weld type)

Shop fillet welds Visual means 100

Site fillet welds Visual means 100

Butt welds, GP Visual means 100

Butt welds, SP Visual means 100

Fillet and Butt welds, SP

Radiographic or ultrasonic inspection

10

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