High Density Bentonite Geosynthetic Clay Liner For Waterproofing
Projects
Product Introduction
Sodium bentonite waterproof blanket (GCL) is a new type of
geosynthetic material, which is widely used in various seepage
prevention projects. Its main components are graded natural sodium
bentonite particles and corresponding admixtures, which are made by
fixing bentonite particles between geotextile and plastic woven
cloth by needling process.
Product Properties
1. Sodium bentonite has high expansibility and can form a high
density diaphragm under water pressure, which has strong self-water
retention performance. When encountering water, bentonite will be
highly expanded to form a gel, further enhancing the anti-seepage
effect.
2. The sodium-bentonite waterproof blanket is simple and short in
construction, and is suitable for waterproofing projects under
various environmental conditions. For example, in landfills,
artificial lakes, underground garages, roof gardens and other
projects, the anti-seepage treatment can be completed by simply
laying waterproof blankets and fixing them on the base.
3. Sodium bentonite waterproof blanket is made of natural inorganic
materials, even after a long time or changes in the surrounding
environment, there will be no aging or corrosion phenomenon, so the
waterproof performance is durable.
Product Application
Sodium bentonite waterproof blanket is widely used in water
conservancy, environmental protection, transportation, railway,
civil aviation and other civil engineering, including the
foundation treatment and sealing of landfill, artificial lakes,
reservoirs, channels, rivers, basements, subways, tunnels,
underground tunnels and other types of underground buildings
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 |
