Slip Lining
Trenchless slip-lining has been well-established (since the 1940s) as the most cost-effective method for extensive and large pipeline rehabilitations. The slip-lining process is just as it sounds – a smaller carrier pipe is slipped into a larger host pipe. Then, the negative space between the carrier and host pipe is filled and sealed with grout for a secure and effective rehabilitation which restores the integrity of the host pipe. The benefits of slip lining appear in the form of the following:
- Reduced time
- Reduced costs
- Minimal disruption; and
- Improved flow rates.
Restoring structural stability is crucial in preserving the longevity and promoting cost savings in maintenance and repair while protecting against corrosion. Several materials can be used for carrier pipes in nearly every size. Common materials are
- High-density polyethylene (HDPE)
- Fiberglass-reinforced (FRP) and PVC
Slip lining can be installed continuously or segmented depending on the project’s material, design, and scope. Slip lining is a simple but effective old-school technique that is as applicable today as ever. Slip lining is commonly used for water, gas, and sewer mains.
Standard Pipe Services determines if slip lining is the right solution by assessing the problem with an internal CCTV inspection. This diagnostic identifies problem areas, types, and diameters of the host. Cleaning is sometimes required for a meaningful diagnostic. Slip lining requires exact measurements to engineer ideal fixes.
