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Geosynthetic Clay Liner For Drainage Groundwater

Bentonite Composite Waterproof Blanket is a special geosynthetic material used in artificial lakes and water features, landfills, underground garages, roof gardens, pools, oil depots and chemical dumps, etc. It is made of high expansion of sodium bentonite filled in a special composite geotextile and non-woven fabric between the needle-punching method into the bentonite impermeable mat can form many small fiber space, is the bentonite particles can not flow like a direction. When water is encountered, a uniform high-density gel-like waterproof layer is formed in the mat, effectively preventing water leakage.
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  • Geosynthetic clay liner

  • Zhongloo

Product Description

Geosynthetic Clay Liners is called bentonite composite waterproof blanket (GCL), also known as bentonite waterproof blanket,waterproof mat, GCL waterproof mat and other bentonite composite waterproof blanket (GCL) which is a new type of geosynthetic material. It is a blanket waterproofing membrane made by mixing the natural sodium-based bentonite particles and the corresponding admixtures into raw materials, and fixing the bentonite particles between the geotextile and the plastic woven fabric through a needle punching process and equipment. The bentonite waterproof blanket has all the characteristics of geotechnical materials and excellent waterproof (permeability) properties.

Technical parameter

Projects/ Technical data

Specifications

GCL-NP

GCL-OF

GCL-AH

Weight per unit area(g/m2)

≥4000g/m2

Bentonie swell index(ml/2g)

≥24

≥24

≥24

Ethylene blue absorption(g/100g)

≥30

≥30

≥30

Tensile strength (N/100mm)

≥600

≥700

≥600

Racking strength(N/100mm)
(for nonwovwn and woven fabric)

≥40

≥40

-

Racking strength(N/100mm)
(for HDPE films and nonwoven fabric)


≥30

-

Permeability(m/s)

≤5.0x110^(-11)

≤5.0x110^(-11)


anti-static water pressure

0.4Mpa,1h,

not seepage

0.6Mpa,1h,not seepage

filtration loss (ml)

≤18

≤18

≤18

Bentonite durability (ml/2g)

≥20

≥20



Applications:

1.waterproof for rooftop garden,basement and so on;
2.waterproof forunderground,railway,city highway,oil drilling and so on;
3.Anti-seepage project of mud and stone reinforce
4.desert and environment improvement,trash stuff zone,artificial lake and artificial sight and so on; 5.reservoir,dam,irrigation channel and so on;



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