Bentonite and Barite Geosynthetic Clay Liners
Geosynthetic Clay Liners Description:
EltGCL 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.
Geosynthetic Clay Liners Technical parameter:
|PROPERTIES||Test Method||Typical Value|
|BENTONITE PROPERTIES|| || |
|Bentionite Swell Index||ASTM D 5890||≥24ml/2g|
|Bentionite Fluid Loss||ASTM D 5891||≤18ml|
|Finished GCL PROPERTIES|| || |
|Bentionite Mass/Unit Area||ASTM D 5993||≥3.6kg/sq.m|
|Peel Strength||ASTM D 6496||≥400N/m|
|Grab Strength||ASTM D 6768||≥6kN/m|
|Thickness||ASTM D 5199||≥6mm|
|Permeability||ASTM D 5084||≤5.0×10-11m/sec|
|Index Flux||ASTM D 5887||≤1.0×10-8m3/m2/sec|
|Geotextile PROPERTIES|| || |
|Non-Woven Geotextile Mass||ASTM D 5261||≥200g/sq.m|
|Woven Geotextile Mass||ASTM D 5261||≥110g/sq.m|
Geosynthetic Clay Liners Typical physical properties:
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
Geosynthetic Clay Liners Potential Applications:
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.
1, The EltGCL Weight can do from 4000g/m2 to 7000g/m2.
2, The EltGCL is a reinforced GCL consisting of a layer of sodium Bentonite between a woven and non-woven geotextile, which are needle punched together.
3, we also have Needle punched and coated process GCL and Viscose pmcess GCL.