High-Performance Sodium Bentonite Geosynthetic Clay Liner For
Impermeable Properties
Product Introduction
Sodium bentonite waterproof blanket is made of sodium bentonite as
the main raw material by needling, needling coating or adhesive
processing. Sodium bentonite can expand more than 24 times when
exposed to water, forming a uniform colloidal system with high
viscosity and low filtration.
Product Properties
Excellent waterproof and impermeable properties. In addition,
sodium bentonite is an inorganic material, does not occur aging
reaction, good durability, and environmental protection.
Product Application
Sodium bentonite waterproof blanket is extensively utilized in
municipal engineering, subway, underground engineering of buildings
and roof reservoir seepage prevention, as well as domestic waste
landfill, sewage treatment site, seepage prevention and
reinforcement for dams of rivers, lakes and reservoirs and other
domains.
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 |
