1. WATER MAIN REHABILITATION
Extending & increasing the value
of your assets for decades
Spray-Applied ANSI/NSF61-5 Polymeric Resin (Polyurea)

2. Common Water Infrastructure Problems
Corrosion
Reduces flow and pressure
Reduces water quality
Fatigue
Leaks and breaks through:
Soil type
Aging
Temperature variations

3. Spray-Applied Lining Spray hose up to 150 meter length
Number of spray passes (1mm each) determines the level of protection desired from non, to semi, to fully structural.

4. Modern and ‘’green’’ Technology
Spray-Applied
Polymeric Resin
Atomizing plural components BEFORE spraying enhances structural properties

5. About Spray-Applied Polymeric Resin
100mm (4’’) diameter and above, larger diameters sprayed by hand (pipes, manholes, …)
Currently, design calculations are ASTM F1216 to determine liner thickness
7 seconds snap cure, bonds to the substrate
No intercoat delamination detected in any spray applications. If only partially completed after 8 hours, suggest mechanical abrasion to lining in place to insure proper adhesion
Ring stiffness, resistance to vacuum
C-Factor: 110 or higher, 10% elongation, not brittle

6. About Spray-Applied Polymeric Resin
Burst: exceeding 150 psi internal pressure (ie. 3mm thickness, 150mm)
Withstand external load and groundwater
Bonds to the host pipe (pull test in excess of psi)
Excellent sealing of service connections
Life extension: decades, according to real life testing
3rd party testing:

7. Independent Test Programs for ASTM F1216

8. New ASTM Standard
Acuro is part of the research group working on the development of the new ASTM WK23937 Standard

9. May 2009 EPA State of Technology Report

11. EPA May 2009 Technology Report

13. SUMMARY OF PROJECT WORK STEPS

15. Project Area

16. Bypass System
Bypass installed on both sides of the street

17. Water Main Characteristics
Dark spots show Bitumen
After cleaning, we noticed that the walls were coated with bitumen.
Location: Barnardo and Lee Streets
Diameter: 150mm (6in.)
Material: Ductile iron
Length: Approximately 225 meters in total
Historic: Some water quality complaints, …
About two months later, we lined an additional 120meters of 125mm diameter (5’’) water main

18. Resin Projection
In the access pit…
Spray gun
Spray hose

19. In the field…
Cleaner
CCTV
Spray rig
Power rig
Utilities
Pit

20. In the field…

21. Standard Project Start
Temporary Bypass
Access pit at both ends
Clean water main using pressurized water or scrapers

22. Dry Pipe
Dry wall
Damp wall
Air flow
Pressurized air

23. Patching holes (when needed)
Install pipe patch to cover apparent holes prior to spray

24. Structural Assessment (Optional)
Electromagnetic probe (Eddy Current) inserted along the entire length of the water main determines wall thickness loss
Wall thickness loss

25. Results in Peterborough

26. Results in Peterborough
Summary % Wall Thickness Loss

27. Work Steps 1. Cleaning 2. Assess 3. Rehabilitate
Water Main Rehabilitation - CARE
Work Steps 1. Cleaning 2. Assess 3. Rehabilitate
AWWA Classes: 4 3 2 1

28. Spray-Applied Equipment

29. Spray-Applied Technology

30. Spray-rig software provides results for each spray
Computerized Control
Cataloging spray applications
Spray-rig software provides results for each spray

31. Pipe Lining Results

32. Natural waving inside PVC pipe Acuro Polymeric resin lining
Our Goal to Achieve a Smooth Interior Wall
Natural waving inside PVC pipe
Acuro Polymeric resin lining

33. Service Connections

34. CCTV Inspections & Cutter
Stand-alone camera & cutter

35. Service Restoration Water main disinfection and flushing
Hydraulic readings and pressure testing
Water sampling and testing
Service and site restoration

36. Benefits & Costs Savings
Non, semi, or fully structural liners
Seals service connections
Adds decades of service
Benefits
Stops leakage / breaks
Increased pressure / flow and water quality
Costs Savings
Reduced emergency repairs
High savings vs replacement
100% Renewable
Minimal C02 emmissions
Minimal public disruption

37. THANK YOU QUESTIONS? Ottawa – Montreal – U.S. (Ohio, Michigan)