Geosynthetic clay liner
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 nonwoven geotextile are needle punched through the layer of bentonite and incorporated into the other geotextile (either a woven or nonwoven).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 Liner P roperties:
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 Liner 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.
Geosynthetic clay Liner 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 -11 m/sec |
|
Index Flux |
ASTM D 5887 |
≤1.0×10 -8 m 3 /m 2 /sec |
|
Geotextile PROPERTIES |
|
|
|
Non-Woven Geotextile Mass |
ASTM D 5261 |
≥200g/sq.m |
|
Woven Geotextile Mass |
ASTM D 5261 |
≥110g/sq.m |
|
ROLL DIMENSIONS |
|
|
|
Width |
Normal |
5.8m |
|
Length |
Normal |
35.0m |
|
Package |
Normal |
PE Film |
Note:
1, The EltGCL Weight can do from 3000g/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.