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WrapidSeal Manhole Encapsulation System

WrapidSeal Manhole Encapsulation System. Problem: inflow. Problem: settlement. Problem: damaged structures. Why does this occur?. Frost Heave Traffic loadings / Snow plows Ground Movement Thermal expansion and contraction.

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WrapidSeal Manhole Encapsulation System

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  1. WrapidSeal Manhole Encapsulation System

  2. Problem:inflow

  3. Problem: settlement

  4. Problem: damagedstructures

  5. Why does this occur? • Frost Heave • Traffic loadings / Snow plows • Ground Movement • Thermal expansion and contraction

  6. Leaking manholes can account for more than 50% of the total I/I entering a system • 35% to 70% of this inflow can be traced to problems at the manhole chimney • Seepage of one gallon of water / minute / year = 475,000 gallons of inflow • Chimney-Frame leakage can begin less than 1 year after construction

  7. How much does Inflow cost? 25gpm X 100 MH = 2500gpm entering collection system $1.50/1000 gallons X 2500gpm = $3.75/minute $3.75/minute X 60 minutes = $225.00/hour to treat inflow

  8. WrapidSeal Manhole Encapsulation System

  9. WrapidSeal Manhole Encapsulation System • Backing • High/Medium Density PE • High Shrink • Very Thick (110 mils) • Adhesive • Mastic Based System - excellent bond to concrete • Used in conjunction with a primer

  10. Wrapidseal Benefits • In the industry for over 10 years • Heat activated • High tensile & elongation, remains flexible • Excellent abrasion resistance • Supplied in bulk roll form to fit any size manhole • Reduces groundwater infiltration • Easy installation for new construction or rehab

  11. Make a smooth transition between the casting and the cone section.

  12. Paint the primer over the whole surface being wrapped

  13. After the primer is on, start to wrap the manhole WrapidSeal should be sized to extend 3” – 4” above and below joints of the cone section, grade rings and frame

  14. Place the closure strip over the overlapped section

  15. After the closure strip is on, start heat shrinking the manhole

  16. Finished manhole

  17. University of Missouri Tests • KC has wide temperature fluctuations  Frost heave  bad I/I situation • City of Kansas City to perform tests to study the performance of the WrapidSeal System • Dr. Anil Misra - U. of Missouri at Kansas City Head of the soil mechanics in the School of Engineering

  18. The area to be WrapidSeal should be wire brushed slightly to remove loose material and dried.

  19. A Primer is applied to the area to be sealed. The primer seals the porosity of the concrete structure, thus giving the Wrapidseal sleeve a good surface to adhere. In about 5 minutes, the primer is ready.

  20. Wrapidseal is cut and wrapped around the cone, overlapping about 6”. A closure strip is applied where it overlaps.

  21. Using a broad flame propane torch, the Wrapidseal Heatshrinkable sleeve is shrunk to the shape of the structure. This step takes about ten minutes.

  22. The Wrapidseal completed installation. Note the tightness of the fit. The whole installation takes about 20 minutes.

  23. Infiltration test performed by Kansas City / Univ. of Missouri. The exterior of the sealed manhole joint is filled with water. There was no infiltration.

  24. A vacuum test was performed on the WrapidSeal manhole joint. Ten inches of mercury was pulled on the test and held for 5 minutes. There were no leaks.

  25. This test is to simulate a frost heave on the casting of three inches. The casting was lifted three inches the WrapidSeal was stretched, then checked for infiltration.

  26. Exterior view of manhole with three inches elongation of the Wrapidseal sleeve. There was no loss of adhesion nor infiltration at joint.

  27. This test was to simulate horizontal stress put on the seal. This type of stress is sometimes seen during backfill or grading around a manhole. The casting was pushed approximately three inches sideways with no loss of adhesion or infiltration.

  28. The final test by Kansas City / Univ. Of Missouri was a long term adhesion test. A Wrapidseal sleeve that had been installed for three years was dug up and checked. There was no loss of adhesion or signs of infiltration.

  29. Snowplow simulation, casting held only by WrapidSeal

  30. Frame and three grade rings held only by WrapidSeal

  31. Casing Spacers and EndSeals

  32. CCI Pipeline SystemsWrapidSeal Manhole Encapsulation SystemCasing Spacers and InsulatorsCANUSA Heatshrinkable Products1-800-867-2772www.ccipipe.comwww.wrapidseal.com

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