Published: May 14, 2017 | Last updated: July 5, 2023

What Does Sliplining Mean?

Sliplining is a general term used to describe methods of lining with continuous pipes and lining with discrete pipes. Sliplining is also defined as the insertion of a new pipe by pulling or pushing it into the existing pipe and grouting the annular space. After it is in place, the pipe is grouted to hold the lining in place and for additional rigidity. It is used to seal leaks in mostly straight applications.


Trenchlesspedia Explains Sliplining

Though sliplining can be employed in virtually any size of pipe, its use is limited in pipes where there are large obstructions or sharp bends. The rigidity of some liners and grouts allow for the structural renovation of the pipe as well.

Polyurethene (HDPE and PE) and polyvinyl chloride (PVC) are the most commonly used lining materials. For glass reinforced plastic (GRP) liners, segmental sliplining is used. Each segment is lowered into position then jacked into position by machinery.


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