The useful life of geomembrane problem, Hangzhou geomembrane, mainly by impermeable impermeable plastic film whether action may be lost, according to the Soviet national standard, with a thickness of 0.2m hydraulic plus stabilizers of polyethylene film In clear water conditions length of service up to 40 to 50 years, working in conditions of life under water 30 to 40 years. Therefore, the useful life of geomembrane sufficient to meet the useful life of the dam seepage. Characteristics of the composite membrane: Unlike warp geomembrane geomembrane. Its greatest feature is the intersection of warp and weft bend, each in a flat state. Tie the line to both tightly and custom geomembrane, evenly fully synchronized external force, stress distribution, and when early transient, external force is applied along the yarn will tear the material rip pro set to increase tear strength. When the warp composite, namely the use of warp bundled line weft fiber layer and geomembrane repeatedly walk through, so it became one of the three series. Thus warp geomembrane has the characteristics of both high tensile strength, low elongation, and both waterproof geomembrane. Therefore, a warp of geomembrane increased with the reinforcement, isolation, protective effect of impermeable material. It is the high level of international applications today geotextile composites. Recommendation 1, geomembrane strengthen protection and management of the finished product, geomembrane manufacturers, raise awareness of water-related construction personnel, to guarantee the project quality, schedule put into normal operation. It has very important significance. 2, the proposed notice and sent supervised, waterproof material associated with the construction workers found damaged geomembrane, waterproof construction workers to be informed promptly repair by the Contractor. 3, geomembrane shall prevent tainted oil, professional geomembrane, otherwise it will reduce the bonding strength. Storage and protection "geomembrane construction methods, see Introduction." 4, attention to the following aspects of the project proposal: ① after geomembrane welding is finished, we must first lake mortar protective layer. ② bridge foundation waterproofing, reinforced penetrating welding, welding time prevent quality problems caused by mortar protective layer. ③ Geomembrane and the wall pasted, the need to prevent the emergence of a large area of ??hollowing. Practical geomembrane | Edison new materials (certified) | Hangzhou geomembrane new material provided by the Edison Company. Edison New Materials Co., Ltd. (www.fangshenmo.com) Shandong Texas, site construction materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Edison leadership in new materials with the staff warmly welcome all inquiries negotiations to create new materials Edison better future.