One important aspect of pipes used in tunnels is their resistance against inflammability.
Drainage and Pipe Systems in tunnels need to be designed according to the requirements of these specific applications. The high contents of minerals diluted in the ground water very often lead to incrustations on the pipe surface resulting in a loss of hydraulic properties. HOBAS CC-GRP Pipes Systems are specially equipped with a liner resin creating a smooth and glossy pipe surface without tendency to firmly bonded mineral deposits.
Moreover HOBAS CC-GRP Pipes Systems are easy to clean with a simple water jet. Another typical aspect of pipelines in tunnels is their low inflammability. The HOBAS CC-GRP Process allows to design pipes with special constituents which significantly reduce the fire hazard in tunnels. Also the high content of hardly combustible mineral constituents (e.g. glass fibers, mineral reinforming material) reduces the danger of fire.