What are the differences between geotextiles and geomembrane?
Geomembrane construction site geomembrane with plastic film as impervious base material, and non-woven fabric composite soil impermeable material, and its anti-seepage performance mainly depends on plastic film seepage control performance. At present, the domestic and foreign application of impervious plastic film, mainly polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene / vinyl acetate copolymer), which is a kind of polymer chemistry of flexible material, the proportion of small, strong extensibility, high deformability, corrosion resistance, low temperature resistance, frost resistance.
The main mechanism is a plastic film impermeable partition dam Water Leakage channel, with its large tensile strength under pressureadapt to dam deformation; and the non-woven fabric is also a kind of polymer material chemical short fiber, through acupuncture or thermal forming, with tensile strength and elongation is higher, it is combined with after the plastic film, not only increases the tensile strength and puncture resistance of plastic film, non-woven fabric and because rough surface, increases the friction coefficient of the contact surface, in favor of composite geomembrane and protection layer stability. At the same time, they have good resistance to bacteria and chemical action. They are not afraid of acid, alkali and salt corrosion.
Geotextiles, also known as geotextiles, are synthetic geosynthetics made from synthetic fibers by means of needle or weave. The finished product is in a cloth shape with a width of 4-6 meters and a length of 50-100 meters. Geotextiles are divided into woven geotextile and nonwoven geotextile. Geotextile has excellent filtration, drainage, isolation, reinforcement, seepage prevention and protection. It has light weight, high tensile strength, good permeability, high temperature resistance, cold resistance, aging resistance and corrosion resistance.
