Seepage geotextile and impervious geomembrane
It is generally believed that the individual geotextile does not have the anti-seepage effect, the main assessment index is the permeability coefficient, the general geotextile coefficient is higher than the ordinary soil, about 0.01-0.001 look, but the geotextile and rubber, Asphalt, plastic combination will form a water-impermeable composite, anti-seepage effect increased by 10 times, and asphalt, rubber combined into a waterproofing membrane such as sbs, etc., and plastic is generally polyethylene, polyvinyl chloride, eva (standard name is Geomembrane) is a combination of impermeable geomembrane or composite geomembrane, because the composite white geotextile outside the protective effect, so the project is also called impermeable geotextile. Therefore, the two are essentially not much difference, but the argument is different. Waterproof board is also called geomembrane, customary to> 0.8mm thick geomembrane called waterproof board, & lt; 0.8mm called geomembrane, it is based on high molecular polymer as raw material made of impermeable material , Divided into homogeneous waterproof board and composite waterproof board
Seepage geotextile is a short wire geotextile, the main thing is to filter water leakage. Impermeable geomembrane is used to waterproof, so the difference between the two is great.
