Geomembrane is a new kind of geomembrane, which is composed of plastic film and non-woven fabric. Its anti-seepage performance mainly depends on the anti-seepage performance of plastic film. At home and abroad, the plastic films used for seepage prevention mainly include polyvinyl chloride (PVC), polyethylene (PE), EVA (ethylene / vinyl acetate copolymer). In tunnel application, there are also those designed to use ECB (ethylene vinyl acetate modified asphalt blend geomembrane). They are polymer chemical flexible materials with small specific gravity, strong extensibility, high adaptability to deformation, corrosion resistance and low temperature resistance It has good frost resistance.
HDPE geomembrane impermeable membrane
HDPE geomembrane is one of the geosynthetic materials, the application of geosynthetic materials originated in the 1950s, the domestic geomembrane is one of the country's eight five-year plan. HDPE geomembrane is a waterproof and barrier type material produced from (medium) high density polyethylene resin (density of 0.94g/cm3 or more geomembrane). HDPE geomembranes are known as "high density polyethylene films" and have excellent resistance to environmental stress cracking, low temperature, ageing and corrosion resistance, as well as a wide temperature range (-60 to +60) and a long service life (50 years).
Rough HDPE Geomembrane
Rough HDPE geomembranes are blown from specially formulated virgin resin HDPE and high quality carbon black light stabilizers and antioxidants. With excellent resistance to oxidation and environmental stress cracking, dimensional stability and anti-slip properties, these product properties can meet or exceed GRL-GM13 standards.
Composite geomembranes are widely used in channel impermeability projects. The large number of applications of geosynthetic materials in civil engineering, especially in flood prevention and rescue projects, and their effectiveness have attracted the high attention of the majority of engineers and technicians. For the application technology of geosynthetic materials, the country has put forward the standardized technical requirements in terms of seepage control, back filtration, drainage, reinforcement and protection, which has greatly accelerated the pace of promotion and application of new materials. The material is widely used in the irrigation channel impermeability project, combined with construction practice, shallow talk about the application technology of composite geomembrane.