Build.it.bigger Gotthard Base Tunnel Hilti X-TW Application

[@Michaelmcmertens]

Here can you see the use of the best drainage membrane DELTA-AT 1200, it´s the brown dimple sheet in the tunnel, developed and designed for 100 years life time with a compressive strength of 950 kN/m², which is 95 tons/m², The best dimple sheet of the world! Cheers fom Dörken!