December 2015 Vol. 242, No. 12


Cured-in-Place Liner Research Demonstrates Long-Term Viability

Cured-in-place liners (CIPL) have been installed on cast-iron and steel pipelines in natural gas distribution systems in Europe, Japan and North America over the last few decades. CIPL have been used because of their rehabilitative and renewal qualities in contrast to the higher costs, construction risks and public inconvenience associated with conventional pipeline replacement methods, particularly in congested and difficult to access areas such as river and road crossings or urban areas. Natural gas industry operators have demonstrated significant economic benefits with CIPL installations, compared to conventional replacement, in addition to reliable and safe operating histories. As an e

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