Infrastructure project specialist Acciona Construcción SA says that it has won this year’s JEC Construction Innovation Award for its pultruded composite panels used as a leak-proof lining system in a Spanish high-speed railway tunnel construction project.

According to the company, there were limited retrofit solutions available to solve the water ingress problem in a section of the tunnel. Water resistant GRP composite panels proved to be the best solution since they were cost effective and a better long term alternative to the steel and concrete lining options considered. They also met subterranean fire standards.

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