Development of a method for determining the tensile properties of composite pipes

Certech is collaborating with the company Norditube as part of the SFP Liner project, the objective of which is to develop new solutions for the rehabilitation of underground pipes by trenchless lining, a technology that avoids excavation, offering the possibility to renovate hard-to-reach pipelines more quickly.. This innovative project focuses on the development of composites, combining high-performance thermosetting resins with new hybrid textiles, intended to renovate and improve the durability as well as the resistance of underground infrastructures for drinking water and steam (heating) applications.

As part of this project, the two partners have developed a new mechanical test in accordance with the ISO 8521:2020 standard, which makes it possible to determine the initial circumferential tensile strength of thermosetting polymer pipes reinforced with glass fibres. This advance makes it possible to better evaluate the performance of the materials developed as part of the project and to ensure their long-term reliability.

For this purpose, Certech uses the high-performance test bench available on its materials technology platform, combined with an accessory specially machined for the test and allowing the characterization of pipe sections.