Waterproofing Bentonite Geosynthetic Clay Liner For Subway And Tunnel Projects
Product Introduction
Sodium bentonite waterproof blanket is a new type of environmental protection and ecological composite impermeable material, which has been widely used in many fields because of its unique anti-seepage performance.
Product Properties
The main raw material for the sodium-bentonite waterproof blanket is sodium-bentonite, a mineralogical substance called montmorillonite, which has the property of swelling when exposed to water. When sodium bentonite meets water, it absorbs five times its own weight in water and expands to more than 15-17 times the original. This property makes sodium bentonite play a key role in waterproof blankets, which can form a uniform colloidal system with high viscosity and low filtration.
Product Application
Sodium bentonite waterproof blanket has been widely used in various engineering projects because of its excellent waterproof and impermeability. It can be used for the foundation treatment and capping of landfill sites, the seepage prevention of artificial lakes, reservoirs, channels, rivers, roof gardens, and the seepage prevention of underground buildings such as basements, subways, tunnels, and underground passages. In addition, it is also suitable for municipal engineering, subway, building underground engineering and roof reservoir seepage prevention, as well as domestic waste landfill, sewage treatment, industrial waste treatment, rivers and lakes reservoir dam seepage prevention, plugging, reinforcement, garden artificial lake golf course pond seepage prevention.
Product Specification
* Unit Weight: ≥4000g/㎡ (customized request accept)
* Width: 4m~6m
* Roll Length:
PS: Customized request accept for all above.
Product Specification and Technical Index (JG/T 193-2006)
| ITEM |
GCL-NP
(Needle Puched Process GCL) |
GCL-OF
(Needle Puched and Cocoon Process GCL) |
GCL-AH
(Viscose Process GCL) |
| Unit Weight (g/㎡) |
≥4000
Not less than the specified value |
≥4000
Not less than the specified value |
≥4000
Not less than the specified value |
| Bentonite Swell Index (ml/2g) |
≥24 |
≥24 |
≥24 |
| Blue Clay (g/100g) |
≥30 |
≥30 |
≥30 |
| Tensile Strength (N/mm) |
≥600 |
≥700 |
≥600 |
| Elongatio At Max Load (%) |
≥10 |
≥10 |
≥8 |
Peel Strength
(N/100mm) |
No-woven Geotextile&
Woven Geotextile |
≥40 |
≥40 |
- |
PE Geomembrane &
No-woven Geotextile |
- |
≥30 |
- |
| Pesistance Hydraulic Pressure (m/s) |
≤5.0X10ˉ11 |
≤5.0X10ˉ12 |
≤1.0X10ˉ12 |
| Resistance Hydraulic Pressure |
0.4MPa,1h,No Leakage |
0.6MPa,1h,No Leakage |
0.6MPa,1h,No Leakage |
| Fluid Loss (m/L) |
≤18 |
≤18 |
≤18 |
| Durability Of Bentonite (mL/2g) |
≥20 |
≥20 |
≥20 |
Product Tags:
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Waterproofing Bentonite Geosynthetic Clay Liner For Subway And Tunnel Projects Images
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