Method and Apparatus for Lining a Pipe

摘要

The method for rehabilitating a damaged section of a pipe without a need for a resin absorbent liner is provided. The method includes pumping a low viscosity material towards a damaged section of pipe and changing the viscosity prior to dispensing of the material. For example, the material may be partially cured prior to dispensing. The partially cured or higher viscosity material is compressed between an inflating bladder and interior wall of the pipe, and the material that is allowed to fully cure. The bladder either can then be removed from the pipe or could be allowed to

主权项

1. A method of rehabilitating a damaged section of a pipe that obviates the need for a resin absorbent liner, comprising:
positioning a bladder in a pipe; pumping a one-part material capable of curing and hardening through a delivery apparatus and dispensing the one-part material between an exterior surface of the bladder and the interior surface of the pipe; wherein the one-part material capable of curing and hardening is at least partially cured near a dispensing end of the delivery apparatus prior to being dispensed; compressing the at least partially cured one-part material between the bladder and the pipe; and allowing the material to continue to cure.