HDPE Geomembrane composite geotextile


HDPE Geomembrane composite geotextile

Composite geomembrane (composite anti-seepage film) is divided into one layer geotextile one layer geomembrane and tow layers geotextile one layer geomembrane, width 4-6m, weight 200-1500g / square meter, tensile, tear resistance, bursting and other physical and mechanical properties High, the product has high strength, good elongation performance, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance and good anti-seepage performance. It can meet the needs of civil engineering such as anti-seepage, isolation, reinforcement, anti-cracking and reinforcement in water conservancy, municipal, construction, transportation, subway, tunnel and engineering construction. It is often used for anti-seepage treatment of dams and drainage ditches, as well as anti-fouling treatment of waste yards.

The composite geomembrane is heated by far-infrared heating on one or both sides of the film, and the geotextile and the geomembrane are pressed together by a guide roll to form a composite geomembrane. With the improvement of the production process, there is also a casting process for composite geomembrane. The form has a geotextile one geomembrane, two geotextiles one geomembrane, two geomembrane one geotextile and the like. The geotextile acts as a protective layer for the geomembrane, so that the anti-seepage layer is protected from damage. In order to reduce ultraviolet radiation and increase anti-aging properties, it is best to use the embedding method.


Composite geomembrane construction matters

(1) The use must be embedded: the thickness of the cover should not be less than 30cm. 

(2) The refurbishment anti-seepage system shall be composed of a cushion layer, an anti-seepage layer, a transition layer and a protective layer. 

(3) The soil should be solid to avoid uneven subsidence, cracks, and turf and roots within the anti-seepage range. A sand or clay with a small particle size is placed on the contact surface of the geomembrane as a protective layer. 

(4) When laying, the geomembrane should not be pulled too tightly, and the two parts buried in the soil part are corrugated, especially when anchored with rigid materials, there should be a certain amount of expansion and contraction. 

(5) During construction, stones should be avoided, and heavy objects should be directly placed on the geomembrane. It is best to construct, lay a film, and cover the protective layer.

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