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Geosynthetic Clay Line ( GCL)
Product Description
Geo-synthetic clay liner GCL is a new type of geosynthetic materials? ? It is by a layer of clay or other low permeability mineral material that covers surface of geotextiles or geomembrane, so it? ? S a environmental ecological composite impervious material. According to engineering need, it still can cover HDPE membrane on the GCL. In order to adapt to the need of special environment, achieving more ideal impervious effect.
specification:
|
Testing Item |
Testing Methods |
Technical Indexes |
|
Expansion Coefficient |
ASTM D 5890 |
≥24ml/2g |
|
Fluid Loss |
ASTM D 5891 |
≤18ml |
|
Bentonite quality in Unit area |
ASTM D 5993 |
≥4.8kg/m2 |
|
Tension Strength |
ASTM D 4632 |
≥400N |
|
Peeling Strength |
ASTM D 4632 |
≥65N |
|
Indicating flow |
ASTM D 5887 |
≤1*10-8m3/m2/sec |
|
Penetrability |
ASTM D 5887 |
≤5*10-9cm/sec |
|
Tension Strength after Wetting |
ASTM D 5321 |
≥24Kpa typical |
style：
GCL- NP means Needle punched process GCL
GCL-OF means Needle punched and cocoon process GCL
GCL-AH means Viscose process GCL
Use:
1. It is used in the landfill sites under the primary geomembrane lining.
2. It is used in the landfill under the sub-lining of the geomembrane.
3. Under the landfill geomembrane and below the clay layer, that is the lining of three components.
4. Under the geomembrane in the landfill cover layer.
5. Adjacent with the geomembrane in the vertical cut-off water wall.
6. It is used on the geomembrane to prevent the coarse-grained materials puncturing the geomembrane.
7. It is used as the second layer of underground water wells lining.