Geomembrane
Geomembrane

Composite geomembrane
Composite geomembranes combine the advantages of geotextiles and geomembranes. Geomembranes themselves have extremely low permeability and can effectively prevent liquid infiltration, ensuring reliable anti-seepage function in various environments. For example, they can prevent pollutant leakage and water resource loss in projects such as landfills and reservoirs.
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Product Description

Composite geomembrane is made by combining geotextile and geomembrane through thermal compounding or adhesive bonding processes.

Composite geomembranes have various outstanding advantages. Firstly, it combines the reinforcement effect of geotextiles with the anti-seepage performance of geomembranes, making it more versatile in engineering applications. Geotextiles can enhance the tensile strength of composite geomembranes, preventing them from being stretched and damaged during construction and use, while geomembranes provide reliable anti-seepage barriers.

Secondly, the composite geomembrane has good corrosion resistance and anti-aging performance, and can work stably for a long time under harsh environmental conditions.

Execution standard for composite geomembrane GB/T  17642-2008
 Mass per unit area(g/m2)400
50060070080090010001100
 Common PE film thickness0.2-0.350.3-0.6



 Common specifications One cloth, one film150/0.25200/0.3300/0.3300/0.4300/0.5400/0.5400/0.6
 Two fabrics and one film100/0.2/100100/0.3/100150/0.3/150200/0.3/200200/0.4/200200/0.5/200250/0.5/250
 Nominal fracture strength(KN/m)57.5101214161820
 Longitudinal and transverse fracture strength(KN/m)≥57.5101214161820
 Longitudinal and transverse standard strength corresponding to elongation%30~100
 CBR top breaking strength rate/KN≥1.11.51.92.22.52.833.2
 Longitudinal and transverse tearing strength ratio/KN≥0.150.250.320.40.480.560.320.7
 Resistant to hydrostatic pressure/MPa
0.20.30.40.50.60.70.81
 One cloth, one film0.40.50.60.811.21.41.6
 Two fabrics and one film0.50.60.811.21.41.61.8
 Peel strength /(N/cm)6
 Vertical permeability coefficient/(cm/s)According to design or contract requirements
 Width deviation/%-1

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