PVC Liner
T-Lock® is a T-ribbed polyvinyl chloride sheet lining material designed specifically to protect new concrete trunk sewers, interceptors, manholes, structures, and monolithic tunnels against hydrogen sulfide gas, acids, alkalis, salt, and other forms of corrosion. Manufactured from high-molecular-weight vinyl chloride resins that are extruded under high temperature and pressure, T-Lock provides a dense, impervious, and continuous plastic lining. Applied during concrete casting, concrete flows around the molded T-ribs and permanently locks the liner into place as a part of the substrate.
Northwest Pipe Company, https://www.nwpipe.com/product/t-lock
Cured-In-Place Pipe (CIPP)
ASTM F1216 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by the Inversion and Curing of a Resin-Impregnated Tube
Scope
This practice describes the procedures for the reconstruction of pipelines and conduits (2 to 108-in. diameter) by the installation of a resin-impregnated, flexible tube which is inverted into the existing conduit by use of a hydrostatic head or air pressure. The resin is cured by circulating hot water or introducing controlled steam within the tube. When cured, the finished pipe will be continuous and tight-fitting. This reconstruction process can be used in a variety of gravity and pressure applications such as sanitary sewers, storm sewers, process piping, electrical conduits, and ventilation systems.
ASTM F1743 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Pulled-in-Place Installation of Cured-in-Place Thermosetting Resin Pipe (CIPP)
Scope
This practice describes the procedures for the reconstruction of pipelines and conduits (2 to 96 in. (5 to 244 cm) diameter) by the pulled-in-place installation of a resin-impregnated, flexible fabric tube into an existing conduit and secondarily inflated through the inversion of a calibration hose by the use of a hydrostatic head or air pressure (see Fig. 1). The resin is cured by circulating hot water or by the introduction of controlled steam into the tube. When cured, the finished cured-in-place pipe will be continuous and tight fitting. This reconstruction process may be used in a variety of gravity and pressure applications such as sanitary sewers, storm sewers, process piping, electrical conduits, and ventilation systems.