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Water Conservancy Project Bentonite Geosynthetic Clay Liner 30m Length

Water Conservancy Project Bentonite Geosynthetic Clay Liner 30m Length

30m Length Geosynthetic Clay Liners

Water Conservancy Project GCL Clay Liner

Waterproof Bentonite Geosynthetic Clay Liner

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Geosynthetic clay liner

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Product Details
30m Or As Your Request
Bentonite Geosynthetic Clay Liner
Geotextile+bentonite+non Woven Fabric
HS Code:
Swelling Index:
24ml/2g Min
Landfill, Dam, Municipal
Product Description

Water Conservancy Project Bentonite Geosynthetic Clay Liner


Product Description

Bentonite waterproof blanket is a geosynthetic material specifically used for preventing leakage in artificial lakes, landfills, underground garages, rooftop gardens, water tanks, oil depots, and chemical storage yards. It is filled with highly expansive sodium based bentonite between specially made composite geotextiles and non-woven fabrics. The bentonite anti-seepage pad made by needle punching can form many small fiber spaces, making it difficult for bentonite particles to flow in one direction, When encountering water, a uniform high-density adhesive waterproof layer is formed inside the pad, effectively preventing water leakage.


Technical parameter


Projects/ Technical data Specifications
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


not seepage

0.6Mpa,1h,not seepage
Filtration loss (ml) ≤18 ≤18 ≤18
Bentonite durability (ml/2g) ≥20 ≥20 ≥20



1. Improved leakage performance
2. Permanent waterproof performance
3. Simple construction and short time limit for a project.
4. Not influenced by air temperature.
5. A kind of green material and good to environmental protection.
6. More versatile than compacted clay
7. Increased airspace and liner efficiency

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