Durability And Environmental Protection Sodium Bentonite
Geosynthetic Clay Liner
Product Introduction
Sodium bentonite waterproof blanket is made of natural sodium
bentonite particles and the corresponding admixtures, which are
evenly mixed and fixed between two layers of geotextile by special
technology and equipment. This material not only has all the
characteristics of geomaterials, such as separation, reinforcement,
protection, filtration, etc., but also has excellent
impermeability.
Product Properties
1. High expansibility: sodium bentonite can expand at least 24
times when exposed to water, forming a uniform colloidal system
with high viscosity and low filtration loss.
2. Excellent waterproof performance: impermeable hydrostatic
pressure up to 0.6MPa for one hour without leakage, permeability
coefficient as low as 5×10^-11 cm/s.
3. Durability: As a natural inorganic material, aging reaction will
not occur, and durability is good.
4. Environmental protection: harmless to the human body, friendly
to the environment, is an environmentally friendly material.
5. Simple construction: not limited by the temperature of the
construction environment, it can also be constructed below 0℃, and
only need to tile, fix and lap during construction.
6. Easy repair: Even if the waterproof layer is accidentally
damaged, it can be restored by simple repair.
8. High performance-price ratio: a wide range of uses, with the
international geotextile (film) specifications to match, improve
construction efficiency.
Product Application
1. Garden landscape: Used for water feature projects such as
artificial lakes and roof gardens to prevent water loss and
maintain water quality.
2. Traffic engineering: Used in roadbed reinforcement and
waterproof engineering of roads and railways to improve the bearing
capacity and stability of roadbed.
3. Construction field: In the underground structure of the building
and the roof reservoir and other parts of the application to
prevent leakage.
4. Mining: Used in the seepage prevention project of tailings ponds
to prevent metal ions from penetrating into the surrounding
environment, to avoid environmental pollution and harm to human
health.
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 |
