SAK ConstructionNSF Approved Pressure Pipe RehabNSF Approved Pressure Pipe Rehab

6” thru 60”

Matt WassamSAK Construction

Agendag

• AWWA M28 Liner ClassificationsAWWA M28 Liner Classifications• Class IV C.I.P.P. Case Study: Omaha, NE• Class IV Swagelining Case Study: Amarillo TxClass IV Swagelining Case Study: Amarillo, Tx

• Q&A

P Li Cl ifi tiPressure Liner Classifications• Two categories of pressure

pipe liners– Independent – liner isIndependent liner is

designed for all applicable loads independent of the host pipe INDEPENDENTp p

– Interactive – semi-structural liner relies on radial support from host pipe to handle

loose-fitting and close-fitting

p pinternal loads without failing

INTERACTIVE

Design Liner Classification (AWWA M 28 Manual)

Class I Linings Non Structural

Class II Linings Semi Structural

Class III Linings Semi Structuralg

Class IV Linings*

Fully Structural or Structurally Independent

AQUA-PIPESwageliningg g

1. A long term (50- year) internal burst strength , when tested independently from the host pipe, equal to or greater than the MAOP of the pipe to be rehabilitated

2 The ability to survive any dynamic loading or other short term 2. The ability to survive any dynamic loading or other short- term effects associated with sudden failure of the host pipe due to internal pressure loads

Class IV CIPP Water Main Renewal

1. Locate the pipe2. Excavate access pits3 Cl th i3. Clean the pipe4. CCTV inspection5. Install the liner6. Hydrostatic pressure test7. Reconnection & civil work8 Disinfect the pipe8. Disinfect the pipe9. Site restoration

Temporary Bypass

Paper C-5-04

Water Main Renewal Basic Project Steps

Clean to bare metalPipe Cleaning:

Dry surface

Water Main RenewalLiner installation

Polyester woven liner impregnated with Epoxy resin Cured with hot water @ 65°C (150°F)

Water Main RenewalLiner installation

Pulled-in-place Pulled in place

Water Main Renewal Liner installation

Pig ReceiverPig Launcher

Water Main Renewal Pressure Test

Carried out before Carried out before reinstatement of service connections

As per ASTM F1743 section 8.3

Low Carbon Dioxide emissions.

Questions to ask before selecting a technology

A i lt fitti i d t• Are specialty fittings required to:– Pass a pressure test– Terminate the CIPP pipe– Add a new connection

• Are specialty tools required to:– Add a service connection– Repair the pipe

•

SwageliningWater Main Renewal

1. Locate the pipep p2. Excavate access pits3. Clean the pipe4 CCTV inspection4. CCTV inspection5. Install the liner6. Hydrostatic pressure test7. Reconnection & civil work8. Disinfect the pipe9. Site restoration

Swagelining™ Process –P ti f H t PiPreparation of Host Pipe

• Camera inspection• Camera inspection• Cleaning

Swagelining™ Process –Butt Fusion

• Sections of HDPE pipe are butt fused togetherE t l b d• External bead removed

Swagelining™ Process –Job site aesthetics for Urban areas

Swagelining™ Process -Shuttle Rods through host pipe

Swagelining Machineg g

Swagelining™ Process –Attach pipe once rods reach entry pit

Swagelining™ Process –HDPE enters receiving pit

• Pulling force• Pulling force removed

• Natural relaxation of HDPE

• 90% of reversion occurs in 2 hoursoccurs in 2 hours

• Remaining reversion occurs overnight

Swagelining™ Process –Final Connections

Swagelining™ Process –Results

No gaps - all ann al space is annual space is eliminated

Fully structural ypipe

Interactive pipe Thin walled liner

Questions?