Characteristics of geomembrane composite with non-woven

       The characteristics of geomembrane composite with non-woven: geomembrane composite with non-woven (composite impermeable membrane) is divided into one cloth and one film and two cloth and one film, the width is 4-6m, the weight is 200-1500g / m2, tensile, tearing, bursting The physical and mechanical properties are high, the product has the characteristics of high strength, good elongation, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance and good anti-seepage performance. It can meet the needs of civil engineering in water conservancy, municipal administration, construction, transportation, subway, tunnel, engineering construction, seepage prevention, isolation, reinforcement, crack prevention and reinforcement. Because it uses polymer materials and anti-aging agents are added to the production process, it can be used in unconventional temperature environments. Commonly used for anti-seepage treatment of dikes, drainage ditches, and anti-fouling treatment of waste yards.

       Uses: geotechnical dam, rockfill dam, stone masonry dam and RCC dam; horizontal anti-seepage overlay on embankment and dam, vertical anti-seepage layer on foundation; tailings dam, sewage dam body and reservoir area; construction cofferdam; channel , Storage tanks (pits, sluices); waste yards; seepage prevention lining of subways, basements and tunnels, tunnels; roadbeds, highways, railways; roadbeds and other foundations salinity prevention; expansion soil and collapsible loess waterproofing Floor; roof leakproof.

       The geomembrane composite with non-woven uses plastic film as the impermeable base material, and the geomembrane material compounded with the non-woven fabric, its impermeability depends mainly on the impermeability of the plastic film. At present, the plastic films used for anti-seepage applications at home and abroad mainly include polyvinyl chloride (PVC) and polyethylene (PE), which are a kind of polymer chemically flexible materials with a small specific gravity, strong extensibility, and high adaptability to deformation. . Corrosion resistance, low temperature resistance, good frost resistance. The main mechanism is the impermeability of plastic film to block the leakage path of the earth dam, with its greater tensile strength and elongation to withstand the water pressure and adapt to the deformation of the dam body; and the non-woven fabric is also a polymer short fiber chemical The material, formed by needle punching or hot sticking, has high tensile strength and extensibility. When it is combined with a plastic film, it not only increases the tensile strength and puncture resistance of the plastic film, but also due to the rough surface of the non-woven fabric , Increase the friction coefficient of the contact surface, which is conducive to the stability of the geomembrane composite with non-woven and protective layer. At the same time, they have good corrosion resistance to bacteria and chemical action, not afraid of acid, alkali, salt corrosion.

       The problem of the service life of the geomembrane composite with non-woven is mainly determined by whether the plastic film loses the function of water-proof and water-proof.