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You are here: Home / Product Category / Geosynthetics / Geosynthetic Clay Liner ( GCL ) / bentonite Geosynthetic Clay Liner GCL
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bentonite Geosynthetic Clay Liner GCL

Geosynthetic clay liner ( GCL) , is a reinforced GCL consisting of a layer of sodium bentonite between a woven and a non-woven geotextile, which are needle punched together.

Quantity:
  • Elt-GCL
  • ELT-4
  • 属性值
Geosyntheic Clay Liner (GCL)
                                                 -------EltGCL
 
 
Description: 
 
Geosynthetic clay liner 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.

 
Typical physical properties of Geosynthetic clay liner : 

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
 
Potential Applications:
 
Geosynthetic clay liner  mainly be 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.


Technical parameter of Geosynthetic clay liner :
 

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
ROLL DIMENSIONS    
Width Normal 5.8m
Length Normal 35.0m
Package Normal PE Film
 
Note: 
1, The EltGCL Weight can do from 3600g/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.

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