Concrete geotextile DRAINTUBE T

polypropylenedrainageprotection

In most cases, the tunnels or covered sliced built are closed on top by a concrete slab. Drainage on the surface of this slab prevents potential rainfall migrations which are detrimental to the durability of the structure. Placed on the geomembrane, DRAINTUBE® T makes it possible in just one operation to install filtration, rainwater drainage and mechanical protection of the geomembrane. It replaces the upper protective geotextile of the geomembrane, the layer of granular drainage materials and the filtration geotextile. • Effective drainage under heavy stress • Drainage of run-off water in the backfill material • Protection of the waterproofing geomembrane • Improved waterproofing performance by limiting hydraulic loads on the waterproofing layer • Cost-effective and environmentally friendly solution which avoids the use of granular drainage materials • Ease of installation with a single product to unroll