Geosynthetic membranes use plastic film as the seepage-proof base material and are combined with non-woven fabric to form a geosynthetic impermeable material. The seepage-proof performance of these new geosynthetic membranes mainly depends on the impermeability of the plastic film. The plastic films used for impermeable applications domestically and abroad are mainly polyvinyl chloride (PVC), polyethylene (PE), and EVA (ethylene-vinyl acetate copolymer). In tunnel applications, ECB (ethylene vinyl acetate modified bitumen blended geomembrane) is also designed for use. These are flexible polymer chemical materials with low density, strong elongation, high adaptability to deformation, corrosion resistance, low-temperature resistance, and good frost resistance.
Geosynthetic membranes are waterproof barrier materials made from polymer as the primary raw material. They are mainly divided into: low-density polyethylene (LDPE) geosynthetic membranes, high-density polyethylene (HDPE) geosynthetic membranes, and EVA geosynthetic membranes.
1. Available in a full range of widths and thicknesses.
2. Excellent environmental stress crack resistance and outstanding chemical corrosion resistance.
3. Superior chemical corrosion resistance.
4. Wide operating temperature range and long service life.
5. Used in landfills, tailings storage sites, canal and dam seepage prevention, and subway engineering projects.
