Results of laboratory tests of concrete, vitrified clay and PVC sewer pipes with CIPP liners (Wyniki badań laboratoryjnych przewodów kanalizacyjnych betonowych, kamionkowych i z PVC z powłokami CIPP)

Kuliczkowski, Andrzej and Mogielski, Kamil (2012) Results of laboratory tests of concrete, vitrified clay and PVC sewer pipes with CIPP liners (Wyniki badań laboratoryjnych przewodów kanalizacyjnych betonowych, kamionkowych i z PVC z powłokami CIPP). Structure & Environment, 4 (3). pp. 23-34. ISSN 2081-1500

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Results of load capacity tests of concrete pipes DN 200 and 300 and vitrified clay pipes DN 200, 250 and 300 with liners and without them were shown together with results of ring stiffness tests of PVC pipes DN 200, 250 and 315 and CIPP liners DN 200, 250 and 315. All pipes and liners used to produce samples were brand new. The tested liners were made of polyester tube saturated with epoxy resin. Preliners were not installed between liners and pipes. The liners were introduced to the pipes using compressed air and cured with hot water. Main aim of the research was to find out if there is any correlation between roughness of the pipe surface (depending on the pipe material) and load capacity growth after pipe rehabilitation due to the sticky properties of the resin used for tube impregnation. Another subject discussed in this paper is the influence of adhesion level between liner and PVC pipe to ring stiffness growth of this pipe. Relationship between adhesion level and growth of load capacity/ring stiffness will be proven. Adhesion level should be taken into consideration when designing the reconstructive liner designed not only to seal and protect the pipeline, but also to strengthen construction of the pipe.

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