Introduction
Geosynthetic Clay Layer(GCL) is a waterproofing material,made of compound geotextile,non woven geotextile with expansion bentonite in the center.It is specially used in artificial lake,landfill,underground garage,roof garden,tank,oil depot and other chemical yard.There are many small fibre space in GCL after being needle punched,then the bentonite powder can not more in one direction,so when meeting water,it will become a high density waterproofing layer and stop water leakage efficiently.
Features:
Small size, light weight, good flexibility, good sealing, simple construction, and adapt to uneven settlement.
Application:
Mainly used in waste landfills, underground reservoirs, underground infrastructure
construction and other projects.
It solves the problems of sealing, isolation and leakage prevention, with good effect
and strong resistance to damage.
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Projects/ Technical data |
Specifications |
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GCL-NP |
GCL-OF |
GCL-AH |
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Weight per unit area(g/m2) |
≥4000g/m2 |
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Bentonie swell index(ml/2g) |
≥24 |
≥24 |
≥24 |
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Ethylene blue absorption(g/100g) |
≥30 |
≥30 |
≥30 |
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Tensile strength (N/100mm) |
≥600 |
≥700 |
≥600 |
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Racking
strength(N/100mm) |
≥40 |
≥40 |
- |
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Racking
strength(N/100mm) |
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≥30 |
- |
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Permeability(m/s) |
≤5.0x110^(-11) |
≤5.0x110^(-11) |
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anti-static water pressure |
0.4Mpa,1h, not seepage |
0.6Mpa,1h,not seepage |
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filtration loss (ml) |
≤18 |
≤18 |
≤18 |
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Bentonite durability (ml/2g) |
≥20 |
≥20 |
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