Geomembrane as a new material, has excellent seepage-proof property, antiseptic property, good chemical stability and features and functions which can be processed according to the actual project needs. Geomembrane has been widely used in dyke, dam , reservoir seepage-proofing in water conservancy engineering, at the same time, geomembrane is also used as seepage-proof, corrosion-proof, leak-proof and moisture-proof materials in areas like channels, impounding reservoir, cesspit, swimming pool, housing construction, underground structures, wasteyard and environmental engineering, etc.
Therefore, the service life period of composite geomembrane is sufficient to meet the service life period of the dam seepage-proof requirement., Ethylene / vinyl acetate copolymer (EVA), mainly including polyvinyl chloride (PVC) .hiphotos.2m added stabilizer polyethylene film, whose years of working is 30 to 40 years under sewage conditions, with small proportion, low temperature resistance, corrosion resistance, good extensibility. Composite geomembrane is a kind of soil engineering impermeable material taking plastic film as a substrate, and combined with non-woven fabrics. The service life period of geomembrane, good anti-frost?property.
