To put is simply, composite geomembrane is a kind of seepage-proof and insulating composite material made of non-woven fabrics and impermeable membrane, generally including: two cloths and one membrane, one cloth and one membrane, multi cloths and multi membrane. In general, two cloths and one membrane is most widely used, not only in water?conservancy projects, but also in roadbed seepage prevention, insulation and strengthening projects. Then what are the features of composite geo-membrane? Composite geomembrane is a kind of composite water proof material made of non-woven geotextile and pe impermeable membrane through advanced manufacturing techniques, which is known to people who have engaged in watercourse, artificial?lake seepage-proof projects. With anti permeability, tensile strength, aging resistance and reinforcing effect, it can be used in water conservancy anti-seepage projects to ensure that there is no water seepage and waste of water resource. Composite geo-membrane is widely used because it has high physical and mechanical property indexes such as tensile, tear, bursting resistance. The product has high strength, good extensibility, large modulus?of?deformation, acid and alkali resistant, anti-corrosion, anti-seepage property. It can meet the needs of seepage prevention, insulation, reinforcement abd anti-cracking fixing in water?conservancy, municipal engineering, construction, transportation, subways, tunnels and so on. Composite geomembrane is super waterproof material for watercourse seepage prevention. On the one hand, composite geo-membrane has good waterproof performance so as to ensure there is no water leakage in watercourse and artificial?lake seepage-proof projects. On the other hand, composite geomembrane is affordable, relatively easy to construct so as to save cost. Besides seepage prevention, composite geo-membrane can play a certain role of pad and reinforcement effect.
geomembrane Technical Data Sheet GL -1 GL 1 - 2 GH - 1 GH - 2 1 Tensile Strength MPa ≥14 ≥17 ≥25 2 elongation?at?break %≥400 ≥450 ≥550 3 right angle tear strength N/mm ≥50 ≥80 ≥110 4 carbon content 1) % ≥2 5 environmental stress cracking resistance F20?h--- ≥1500 6 OIT (Oxidative Induction Tine) at 200 ℃ --- ≥20 7 water vapor penetration coefficiency g.cm ≤1.0 x 10 - 16 8 low-temperature impact at -70℃ pass 9 dimensional stability % ±3 black geomembrane requirements.
① excellent chemical resistance (corrosion resistance); ② outstanding ability of stress cracking resistance (environmental stress cracking resistance ); ③ lowest permeability; ④ excellent UV resistance; ⑤ stable vertical performance at low temperature;
