Bentonite Clay Pond Liner GCL-OF

It is a needle-punched reinforced composite geosynthetic clay liner (bentonite clay pond liner) comprised of a uniform layer of granular sodium bentonite encapsulated between a woven and a nonwoven geotextile with a uniform HDPE geofilm coating applied to the woven surface to lower the hydraulic conductivity.

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Geosynthetic clay liner (GCL-OF) Introduction
• It is a needle-punched reinforced composite geosynthetic clay liner(bentonite clay pond liner) comprised of a uniform layer of granular sodium bentonite encapsulated between a woven and a nonwoven geotextile with a uniform HDPE geofilm coating applied to the woven surface to lower the hydraulic conductivity.
• Its performance can meet or exceed GRI-GCL3 and our national standard JG/T193-2006.

Functions

With the system of upper and bottom sides of geotextiles it is possible to avoid slippage and the accumulation of bentonite as a consequence of cuts, tears, vertical applications and movements.

GCL is self-attaching and self -sealing to concrete or other construction structures. It has function of seepage control. PE geomembrane enhances its imperviousness ability.

Application
1. Water storage, miniature reservoir, dam of reservoir, acequia, fish pond
2. Construction floor, Roof garden, basement, etc.
3. Subway, railway, expressway, airport, bridge, road, light industry, oil and metallurgy and other industry
4. Environmental reform, landfill, artificial lake or other landscapes, etc.
5. Maintenance, repair and reinforcement of earth works

Benefits of GCL-OF
Good Self Water-Retention Property:
Form high density diaphragm under hydraulic pressure, the water permeable capability equals to 100 times density degree of 30cm clay when the thickness of GCL is 3mm. It has very good self water-retention property.

Permanent Water Proofing Capability:
GCL is nature inorganic material, it won't aging or corrode even after long time or surrounding changed, so it has permane-nt water proofing capability.

Environment-friendly:
GCL is nature inorganic material, which is non-poisonous and harmless to human body, as a result, it is eco-products.

Mass and Dimensions:
1 Unit mass: 4000g/m²---6500g/m²
2 The width range is 3meter-6meters; Maximum width is 6meters; Other width can be custom.
3 The length can be 20, 30, 40 meters or as request. Maximum length is depending on the rolling limit.

SPECIFICATION		GCL4800
Geotextile layers
Geotextile of cover layer (non-woven geotextile)	g/m2	200
Geotextile of carrier layer (woven geotextile,PP)	g/m2	110
HDPE layer
HDPE geomembrane	mm	0.2
Bentonite layer
Type	-	Sodium bentonite
Mass per unit area	g/m2	≥4500
Swell index	ml/2g	≥24
Fluid Loss	ml	≤18
Geosynthetic Clay Liner
Mass per unit area	g/m2	≥4800
Tensile strength	N/100mm	≥700
Elongation at break	%	≥10
Peel strength (nowoven geotextile-woven geotextile)	N/100mm	≥40
Peel strength (nowoven geotextile-PE film)	N/100mm	≥30

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