Characteristics required for use in the construction of tunnels and underground structures.
Geotess® types are characterized by a random fibres distribution in order to achieve a homogeneous matrix. The fibers used are made of high tenacity PP short fiber. As part of the construction of the tunnel Geotess® is proposed for different applications with a mass per unit area of 500 g / sqm to 800 g / sqm. It is normally used to protect the waterproofing membrane and can act as a filter and drainage system. On request it can be made with fire resistant fibres to match the DIN 4102 Class B2.