Geomembrane is a polymer-based waterproof barrier material, mainly classified into low-density polyethylene (LDPE) geomembrane, high-density polyethylene (HDPE) geomembrane, and EVA geomembrane. It possesses excellent resistance to environmental stress cracking and chemical corrosion, a wide operating temperature range, and a long service life. It is widely used in landfills, tailings ponds, canals, seepage prevention, dam seepage prevention, and subway projects.
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ecuador Geosynthetic clay liner
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Product Description
It is usually composed of two layers of geotextile sandwiching a layer of bentonite. Has the following significant characteristics:
Low permeability: It can effectively prevent the penetration of liquids and gases, providing excellent isolation effect.
Self healing ability: When GCL is locally damaged, bentonite will expand in contact with water, fill and repair gaps on its own, and maintain its anti-seepage performance.
Convenient construction: Compared to traditional clay liners, GCL is lightweight, easy to transport and lay.
GCL has been widely applied in the following fields:
Landfill site: As an impermeable layer at the bottom and slope, it prevents leachate from polluting groundwater and the surrounding environment.
Water conservancy engineering: such as anti-seepage treatment of reservoirs and channels.
For example, in the construction of a large landfill site, using GCL as a liner can greatly reduce the risk of leachate leakage, protect the surrounding soil and water sources; When constructing small reservoirs, laying GCL can effectively reduce water leakage and improve the utilization of water resources.
| 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 pressur | 0.4Mpa,1h, not seepage | 0.6Mpa,1h,not seepage | |
| filtration loss (ml) | ≤18 | ≤18 | ≤18 |
| Bentonite durability (ml/2g) | ≥20 | ≥20 | |
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