Geomembrane and geotextile difference?
1, geotextile, also known as geotextile, it is made of synthetic fiber through acupuncture or woven from the permeability of geosynthetics. Finished cloth for the cloth, the general width of 4-6 meters, the length of 50-100 meters. Geotextile is divided into a woven geotextile and non-woven geotextile. Geotextile has excellent filtration, drainage, isolation, reinforcement, anti-seepage, protection, with light weight, high tensile strength, good permeability, high temperature, anti-freeze, anti-aging, corrosion resistance. 2, geomembrane construction site geomembrane to plastic film as impermeable substrate, and non-woven composite made of soil impermeable material, its impermeability depends mainly on the plastic film impermeability. At present, domestic and foreign anti-seepage application of plastic film, mainly polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene / vinyl acetate copolymer), they are a polymer chemical flexible material, the proportion of small, Strong extension, high adaptability to deformation, corrosion resistance, low temperature resistance, good frost resistance. The main mechanism is to plastic film impermeable barrier earth dam leakage channel, with its large tensile strength and elongation to withstand water pressure and adapt to the dam deformation; and non-woven is also a polymer short fiber chemistry Material, through the needle or hot tack forming, with high tensile strength and extensibility, it is combined with the plastic film, not only increased the tensile strength of plastic film and anti-puncture ability, and because the non-woven surface rough , Which increases the friction coefficient of the contact surface, which is favorable to the stability of the composite geomembrane and the protective layer. At the same time, they have good resistance to bacteria and chemical resistance, not afraid of acid, alkali, salt erosion.
Geomembrane is impermeable
Geotextile is woven up the "cloth", geomembrane is based on the geotextile paste a layer of impermeable membrane.
