Geosynthetic Clay Liner (GCL) is a kind of gree material and good to environmential protection anti-leakage product.

Geosynthetic clay liners (GCLs) are high performance needle punched environmental reinforced composites which combine two durable geotextile outer layers with a uniform core of natural sodium bentonite clay to form a hydraulic barrier. Fibers from the non-woven geotextile are needle punched through the layer of bentonite and incorporated into the other geotextile (either a woven or non-woven).when hydrated under a confining load, the bentonite swells to form a low permeability clay layer with the equivalent hydraulic protection of several feet of compacted clay.It is used to prevent water leakages in areas of artificial lakes, waste disposal fields, underground garage, top building gardens, reservoirs, oil warehouses, and chemicals accumulating fields.Features:1. Improved leakage performance2. Permanent waterproof performance3. 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 Technical Data:Width: 5.6mLength: 30mWeight per Unit ≥ 5000g/m²Weigh of Bentonite per Unit ≥ 4500g/ m²Permeability Coefficient ≤ 5×e-11m/secSwell Index ≥ 24ml/2g

GCL clay liner