Annulus Grouting of Slipliner Rehabilitation

The proper design and construction of thermoplastic and thermosetting resin slipliner pipe requires a thorough understanding of material limitations. Proper calculation procedures must be utilized when determinant the annulus stresses developed during the grouting operation. Due to various inherent characteristics of each of the plastics, it is necessary that viable installation specifications be written and adhered to, and vigorous construction inspection be carried out in order to attain desired project life. It is usually recommended to grout the annulus for pipelines when utilizing a slipliner pipe. The subject of this paper is currently being addressed by the ASCE Task Committee on "Design Guidelines" under the Pipeline Infrastructure Committee. This paper does not necessarily represent a consensus of committee opinion on the subject.