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No-Dig Water Mains Rehabilitation - Polyester Reinforced PE [PE]


Plastic Pipes Conference Association # 1995 Edinburgh


This paper describes the trial of a novel No-Dig water mains rehabilitation technique using "Polyester Reinforced Polyethylene" (PRP). The trial was carried out during July and August 1994 at Formby in the North West of England, where the water distribution system is the responsibility of North West Water Ltd. 0 The . trial site and renovated main are illustrated and a description of the rehabilitation process is given. Technical characteristics of the lining material are explained, including its advantages and limitations. Based on the results of the trial a comparison is made between PRP and other No-Dig methods, showing that PRP is a welcome addition to the range of techniques available. PRP is currently marketed under the trade name "Thermopipe" by Angus Flexible Pipelines Ltd.

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