Method of lining a conduit using a scrim-reinforced pipe liner

摘要

A method for repairing a conduit using a tube-shaped liner comprising a single layer of resin-absorbent fabric having a polymeric coating attached to an outer wall of the tube and a reinforcing layer connected to an inner surface of the tube. The liner is impregnated with a resinous material capable of curing and hardening and inverted under pressure into the conduit to be repaired such that the reinforcing layer is pressed against the interior of the conduit. The resinous material is allowed to cure and harden, creating a lining to the conduit. The single layer of fabric may be a non-woven material, such as a felt. The conduit to be lined may be a sewer pipe, and the reinforcing material may be a woven scrim. The woven scrim may be capable of preventing longitudinal stretch of the liner tube while allowing radial stretch.

主权项

1. A liner for providing a lining to an interior of a conduit comprising:
a resin absorbent material having a first surface and an opposite second surface; a reinforcing material having a first surface and an opposite second surface, said first surface of the reinforcing material attached to the first surface of the resin-absorbent material and the second surface of the reinforcing material forming an outer surface of the liner; and an impermeable coating attached to the second surface of the resin-absorbent material.