Changsha Jian-Yi New Material Co., Ltd.
Make the project safer and the environment better!
Add to Cart
Bentonite Geosynthetic Clay Liner For High-Density And Low-Permeability Waterproofing
Product Introduction
Sodium bentonite waterproof blanket (GCL) is a geosynthetic material which uses the high expansibility and low permeability of sodium bentonite to achieve waterproof effect.
Product Properties
1. High expansibility: sodium bentonite can absorb five times its own weight in water, and the volume can expand to more than 15-17 times the original.
2. Low permeability: The formation of a high-density diaphragm under water pressure, water permeability can reach 5×10^-11m/s, with strong waterproof performance.
3. Durability: As a natural inorganic material, sodium bentonite will not reduce performance due to aging or corrosion, and has long-term durability.
4. Environmental protection: harmless to the human body, friendly to the environment, is an environmentally friendly material.
5. Easy construction: no need to heat or paste, easy and fast construction.
Product Application
1. Municipal engineering: Waterproofing of underground works such as subways, tunnels and basements.
2. Landfill: waterproof layer used as base treatment and capping.
3. Water conservancy project: seepage prevention and reinforcement of reservoirs, DAMS and rivers.
4. Environmental protection project: seepage prevention of sewage treatment plants and industrial waste treatment plants.
5. Garden landscape: anti-seepage of water bodies such as artificial lakes and roof gardens.
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 | |