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The characteristics of Geomembrane

Jul 25, 2017

Composite Geomembrane to plastic film as impervious substrate, and non-woven composite of geotextile-proof material, its anti-seepage performance is mainly dependent on the permeability of plastic film. Domestic and foreign impervious application of plastic film, mainly PVC (PVC), polyethylene (PE), ethylene/vinyl acetate copolymer (EVA), they are a polymer chemical flexible materials, small proportion, strong extension, adapt to deformation, corrosion resistance, low temperature, good frost resistance.

The service life of composite geomembrane, mainly by the plastic film whether or not to lose impervious to water, according to the Soviet national standards, the thickness of 0.2m of polyethylene film with stabilizer, the working life can reach 40-50 years under the condition of water, and the working life is 30-40 years under the condition of sewage. Therefore, the useful life of the composite geomembrane is sufficient to meet the requirements of dam seepage control.

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