Geotextile has excellent filtering, drainage, isolation, reinforcement, protection, light weight, high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance, and corrosion resistance. The application of geosynthetic materials originated in the 1950s. The domestic geotextile is one of the national eighth five-year plans. In 1998, China promulgated "Synthetic Geotextile Staple Fiber Nonwoven Geotextile" (GB / T17638 -1998) standard, currently geotextile has been widely used in many fields.
Geotextile mainly has the following three series:
1. Needle-punched non-woven geotextiles, any choice between 100g / m2-600g / m2. The main raw material is polyester staple fiber or polypropylene staple fiber, which is made by needle punching. Embankment slope protection, sea reclamation, wharf, ship lock flood prevention and other projects are effective ways to achieve soil and water conservation and prevent pipe surges through back filtration.
2. Needle-punched nonwoven fabric and PE film composite geotextile, the specifications are one cloth and one film, two cloth and one film, the maximum width is 4.2 meters. , The main purpose is anti-seepage, suitable for railways, highways, tunnels, subways, airports and other projects.
3. Non-woven and woven composite geotextiles. The varieties include non-woven and polypropylene filament woven composite, non-woven and plastic woven composite. It is suitable for basic engineering facilities for foundation reinforcement and adjustment of permeability coefficient.