3D composite drainage geonet is made of special geonet with double-sided bonded geotextile, the combination of geotextile(reverse filtration) and geonet (drainage and protection) provides a complete “reverse filtration-drainage-protection” effect. The special 3D structure of the mesh can with stand high compressive loads during the entire use process, and can maintain a considerable thickness, providing good water permeability, it can replace traditional sand and gravel layers, and is mainly used for drainage of landfills, roadbeds and inner walls of tunnels.

3D Composite drainage geonet specifications:
1. Geonet thickness range is 4mm~~8mm.
2. The width range is 2meter-6meters; Maximum width is 6meters; Other width can be custom.
3. The length can be 30, 50meters or as request. Maximum length is depending on the rolling limit.
4. Black color for geonet and white color for geotextile are most ordinary and popular.

3D Composite drainage geonet Features and benefits:
◆ Strong drainage (equal to 1meter thick gravel);
◆ High tensile strength and high shear strength.
◆ Minimizing geotextile intrusion and maintaining stable drainage;
◆ Long-term high-pressure load(bear about 3000Ka compressing load)
◆ Corrosion resistance, acid and alkali resistance, long service life.
◆ Easy installation, cost and time effective (compare to traditional construction material such as sand, gravel and stone).

3D Composite drainage geonet Application:
Mainly used in drainage projects of railways, highways, tunnels, municipal works, reservoirs, slope protection, ect. Achieve a signigicant effect.