Composite geotechnical membrane

Products with high strength, good extension performance, deformation modulus, acid and alkali resistance, corrosion resistance...

Product Details

Composite geotechnical film (composite membrane impermeable) is divided into a cloth of a film and two cloth of a film, wide 4-6m, according to different specifications vary in weight, typically 200 - 1500g/ square meters, tensile, tear, bursting and other physical and mechanical properties of high index, the product has high strength, elongation property is good, the deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance, impermeability of the good. To meet the irrigation, municipal, construction, transportation, subway, tunnel, construction of anti-seepage, separation, strong, anti crack reinforcement and other civil engineering. Seepage prevention treatment of dam and drainage ditch, and anti fouling treatment of waste dump.
Composite geomembrane is on one or both sides of the thin film oven far infrared heating, the geotextiles and geomembranes were mediated by the roll to combine to form a composite geomembrane. With the improvement of production process, there is a casting process of composite geomembrane. The form has a cloth one film, two cloth one film, two film, one cloth, etc..
The geotechnical cloth is used as a protective layer of the geotechnical membrane to protect the impervious layer from being damaged. In order to reduce the ultraviolet radiation and increase the anti aging performance, it is better to use the embedded method.
In the construction, material first to smaller size sand or clay leveling base, then laying geomembrane. Geomembrane not stretched too tightly, both ends embedded in the soil section is corrugated. Finally, in paving geomembrane with fine sand or clay laying a layer of about 10cm transition layer. Block 20-30cm stone (or concrete precast block) for the protection of the protective layer. Construction, should try to avoid the stones directly hit on the geotechnical membrane, the best side of the film side of the protective layer of the construction. Composite geomembrane and surrounding structures connected should adopt expansion bolt and anchor of plate strip and connecting parts to daubing emulsified asphalt (2mm thick) bonding, so as to prevent the occurrence of leakage.
Construction item
(1) the use of embedded type: cover thickness should not be less than 30cm. Composite geotechnical membrane is widely used in reservoir engineering.
(2) the renovation of the impervious system should be: cushion, impermeable layer, the transition layer, the protective layer.
(3) soil should be solid, to avoid uneven subsidence, cracks, the range of turf grass, roots to clear. The sand or clay with small particle size is laid on the contact surface of the membrane.
(4) when the laying of the geotechnical membrane do not pull too tight, both ends of the soil buried part of the soil into a better shape, especially with the rigid material, should be left with a certain amount of expansion.
(5) when the construction, should avoid the stone, the heavy object hit on the ground, the best side of the construction, while laying the film, while covering the protective layer.



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