TUNNELS

Geotess geotextiles on both sides of membranes in tunnel construction protect it from perforation.

Coatings and membranes applied to concrete structures are often in need of protection. Angular materials in contact with the proofing, whether by design or by accident, are capable of penetrating the barrier, particularly if the structure is to be subjected to high confining pressures. Thick, non-woven GEOTESS geotextiles are the easily-applied and proven solution.

Geotess® NO RIVAL

Specifically developed to respond to the installation challenges of geotextile, Geotess® products are a breakthrough of importance comparing with other traditional construction techniques.

FILTRATION AND EROSION CONTROL

Supported by a constant innovating tradition, Geotess® geotextile has no equals under the most extreme application conditions. The product can reach 2000 gr per square meter and was mainly studied to control erosion in coastal, river and mountain areas.

PROTECTION

90% of the damages to a geotextiles occur during the installation. Geotess® ensure a total resistance to this primary challenge consequently guaranteeing a long life service. It is made of high quality polypropylene fibres allowing it to comply with the strictest project requirements.

DRAINAGE

Thanks to its weight and thickness, it represents a unique drainage system.
Landfills and tunnels are just two of the most common uses of the product.

Geotess® for tunnels

EN 13256

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.

FUNCTIONS

PROTECTION

DRAINAGE

REINFORCEMENT