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GCL bentonite waterproof blanket

Keyword: GCL bentonite waterproof blanket

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　　Performance characteristics of GCL sodium-based bentonite waterproof blanket:

　　GCL is an anti-seepage liner between CCL (on-site thick compacted clay anti-seepage liner) and polymer material---geomembrane. It is mainly used in waste landfills, underground reservoirs, underground infrastructure construction and other projects in environmental engineering to solve sealing, isolation, and anti-leakage problems. It has good effect and strong anti-destruction.

　　The width of the bentonite waterproof blanket can reach 6M and the length is 60M. The product permeability coefficient is 1.25-3.54×10-8cm/s, the CBR bursting strength is 1.2KN, the puncture strength is 0.34KN, and the comprehensive performance is excellent.

　　The GCL produced by our company has uniform quality, strong anti-seepage ability, good flexibility, can adapt to uneven settlement of the foundation, and can prevent the loss of soil materials. It has good healing ability for defects such as cracks.

　　Application scope:

　　◎ Municipal engineering, subway, underground engineering of buildings and rooftop water tanks.

　　◎ Environmental protection and sanitation, domestic waste landfills, sewage treatment plants, industrial waste treatment plants.

　　◎ Water conservancy, anti-seepage, plugging and reinforcement of river, lake and reservoir dams.

　　◎ Anti-seepage of ponds in gardens, artificial lakes and golf courses, etc.

　　◎ Anti-seepage and anti-leakage of projects in petrochemical, mining and other fields

Technical parameters

Test items	Test methods	Technical indicators
Expansion coefficient	ASTM D 5890	≥ 27mL/2g
Fluid loss	ASTM D 5891	≤ 18mL
Bentonite mass per unit area	ASTM D 5993	≥ 4.8kg/m2
Tensile strength	ASTM D 4632	≥ 400N
Peel strength	ASTM D 4632	≥ 75N
Indicate flow	ASTM D 5887	≤ 1 x 10-8m3/m2/sec
Permeability	ASTM D 5887	≤ 5 x 10 9cm/sec
Tensile strength after soaking	ASTM D 5321	≥ 24kPa typical