Geotextile is cotton-like, which is relatively thick and permeable to water, but geomembrane is like plastic bags we usually use, which is white and impervious to water...
Geotextiles, just as its name implies, is made of non-woven fabrics. Mainly used to consolidated subsoil. Geomembrane is made of high density polyethylene, mainly for seepage-proofing. Combination of the two is composite geomembrane, which can be divided into one cloth one membrane and two cloths and one membrane, with stronger anti-seepage property.
To put it simply, geomembrane is impermeable to water, while geotextile is permeable to water. Geotextile is made of nonwoven fabric, mainly used to consolidated subsoil. Geomembrane is made of high density polyethylene, mainly used for seepage-proofing. Geotextile can be divided into woven geotextile and non-woven geotextile, which has excellent functions like filtration, drainage, separation, reinforcement, seepage-proofing, protection and characteristics like light weight, high tensile strength, good permeability, high temperature resistance,anti-freezing, aging resistance and corrosion resistance. Geomembrane is a kind of polymer chemistry flexible material taking plastic film as seepage-proof substrate, with small proportion, strong extensibility, high?adaptability?to the?deformation, corrosion resistance, low temperature resistance and good anti-frost?property. Geomembrane is mainly used for projects in engineering construction field which have high seepage-proof requirement like seepage-proofing, isolation, enhancement, anti-cracking, reinforcement, water drainage in horizontal plane. "Geotextile is used for anti-filtering while geomembrane is used for seepage-proofing." Geotextile and geomembrane can be used alone and they can also be combined into one to give play to their respective strengths.
