Versatile Sodium Bentonite Geosynthetic Clay Liner For
Waterproofing Projects
Product Introduction
Sodium bentonite waterproof blanket is a new type of
environmentally friendly geomaterial, which is composed of sodium
bentonite particles sandwiched between two layers of geotextile. It
immobilized bentonite particles by needling, laminating or gluing
processes to form a blanket material with excellent waterproof
performance.
Product Properties
1. High expansibility: sodium bentonite can expand rapidly in
contact with water to form a waterproof gel.
2. Low permeability: has very low permeability, up to 5×10^-11m/s.
3. Durability: As a natural inorganic material, it has good aging
resistance and chemical corrosion resistance.
4. Environmental protection: non-toxic and harmless, can be
naturally degraded, friendly to the environment.
5. Simple construction: easy to transport and construction, no
special equipment is required.
Product Application
1. High expansibility: sodium bentonite can expand rapidly in
contact with water to form a waterproof gel.
2. Low permeability: has very low permeability, up to 5×10^-11m/s.
3. Durability: As a natural inorganic material, it has good aging
resistance and chemical corrosion resistance.
4. Environmental protection: non-toxic and harmless, can be
naturally degraded, friendly to the environment.
5. Simple construction: easy to transport and construction, no
special equipment is required.
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 |
