Abstract: The article describes a preparation procedure of samples made of concrete pipes with CIPP liners installed inside. Liners installed inside concrete pipes DN 200 were 3.0, 4.5 and 6.0 mm thick and liners installed inside DN 300 pipes were 4.5 mm thick. All the liners were made of polyethylene felt and epoxy resin. Load capacity test procedure for all samples is described. Other tests described were aimed at determining load capacity of samples made of concrete pipes only and ring stiffness of samples made of CIPP liner only. Response of the liners to the pipe destruction is described. Results of load capacity and ring stiffness tests are presented. A comparison of load capacity test results show significantly higher increase in load capacity of samples without preliners than with them. Factors reducing the thickness of the liner were determined for the case without the preliner.
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