Smooth Geomembrane Geomembrane technical indicators technical indicators -EVA Tel: 13639450809 Contact: Chen Geomembrane detailed description of the manufacturer: two cloth membrane is impermeable plastic film as the substrate, and the non-woven composite and a geotextile impermeable material. Its performance depends on impervious impermeable plastic film performance. At present, the application of impermeable plastic film, mainly polyvinyl chloride (PVC) and polyethylene (PE), which is a flexible material polymer chemistry, the proportion of small, strong extension, the ability to adapt to high deformation, corrosion resistance, low temperature resistance, good frost resistance. The film thickness is generally 0.30-2.00mm. The main mechanism of the non-permeable plastic film is cut off earth leakage passage, with its greater tensile strength and elongation to withstand water pressure and adapt to dam deformation. And non-woven material is a polymer of chemical fiber, by needle stick or hot forming, high tensile strength and elongation. Currently used as long as the composite of non-woven: polyester staple fiber geotextile, polyester filament spunbond geotextile, flat woven cloth. After combining it with plastic film, plastic film not only increases the tensile strength and puncture resistance, and because non-woven surface roughness increases the friction coefficient of the contact surface is conducive geomembrane and stability of the protective layer. At the same time, they have good bacteria and chemical resistance to aggressive, not afraid of acid, alkali, salt erosion. Construction of two cloth membrane requirements geotextile geomembrane layer of protection as the protective barrier layer from damage. To reduce the ultraviolet radiation, increases anti-aging properties, preferably laying buried in France. Construction, the first to use a smaller diameter material leveling sand or clay base surface, and then laying, not stretched too tightly, buried in the soil at both ends of the body part corrugated laying, the last in the shop two cloth one Shop around 10cm membrane layer over layer of fine sand or clay. Lined with 20-30cm stone (or precast concrete blocks) for the anti-scour protection layer. Construction, should try to avoid a direct hit on the rocks, the best side to side laying the construction of the protective layer. Two cloth membrane and surrounding structures should be used to connect the expansion anchor bolts and steel batten, joints brushing emulsified asphalt (thickness 2mm) bonding, to prevent leakage there. Construction joint processing is a key process directly affect seepage effect. Generally joints are: ① lap: lap width should be greater than 15cm; ② heat welding: appropriate for thicker substrates geomembrane weld lap width of not less than 5CM (not recommended for bonding, prolonged water immersion. easy to open plastic, impervious poor results.).