Waterproof Bentonite Geosynthetic Clay Liner For Reservoirs And
Channels
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 the bentonite particles between two layers of geotextile and
plastic woven cloth by needling process.
Product Properties
1. Excellent waterproof performance: Sodium bentonite will be
highly expanded after water, forming a gel-like impermeable body,
with high self-water retention performance.
2. Good durability: Because bentonite is a natural inorganic
material, it will not occur aging reaction or corrosion phenomenon,
so it has a long-term waterproof effect.
3. Simple construction: sodium bentonite waterproof blanket
construction operation is simple, short construction period,
suitable for a variety of complex environment waterproof project.
4. Environmental protection: As a green material, sodium bentonite
waterproof blanket does not contain toxic and harmful substances,
and is friendly to the environment.
5. High deformation resistance: It has good overall stability and
deformation resistance, and can effectively cope with changes in
various geological conditions.
Product Application
1. Water conservancy and environmental engineering: used for
anti-seepage treatment of landfill, artificial lakes, reservoirs,
channels, rivers, etc.
2. Traffic and infrastructure construction: used in subway tunnels,
underground passages, basements, roof gardens and other underground
buildings seepage prevention.
3. Municipal construction: It is also widely used in municipal
projects such as sponge city construction, river and lake
ecological protection and restoration.
4. Industrial applications: Used in chemical yards, oil depots and
other places that need to prevent leakage.
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 |
