There has been an expansion in the infrastructure of gravity and pressure pipes within municipalities and cities, driven by growth and demand. Maintaining these assets is crucial, especially in areas where the rate of population growth is rising. The task of replacing pipes is complicated due to accessibility and cities are motivated to minimise the impacts on the environment and community. Water authorities are focussed on mitigating water losses amidst these challenges.
While UV – CIPP is an established technology in non-pressurized wastewater applications, the demand for trenchless rehabilitation of pressure applications has grown. To meet demand, SAERTEX multiCom® has developed a UV-cured fiberglass-reinforced pipe liner, which is a close fit CIPP product for the trenchless rehabilitation of pipes in pressure applications such as sewer rising mains and potable water pipes.
This liner is pressure resistant, hygienic and fully structural and has been successfully appraised by WSAA and certified to AS/NZS 4020.
It has been successfully deployed in São Paulo, Brazil, where it addressed supply issues from a major leak in the potable water network from the 1930s. In a bustling urban area, 1.3km of SAERTEX-LINER® H2O (DN450 – DN500) was installed. This paper focuses on the benefits and use of UV-CIPP from planning to execution of the project.
Author
Katharina Helming, Business Development Manager, SAERTEX multiCom GmbH