Bentonite Waterproof Blanket For Road Railway Roadbed Reinforcement
And Waterproofing
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, and the bentonite
particles are fixed between two layers of geotextile by a special
process to make a blanket waterproof sheet.
Product Properties
1. Excellent anti-seepage performance: sodium bentonite can be
highly expanded after water, forming a gel, with a strong
anti-seepage ability
2. Simple construction: Because of the light weight and small size
of the sodium bentonite waterproof blanket, the construction does
not need large machinery and equipment, and can be completed
manually, which greatly reduces the difficulty and cost of
construction.
3. Strong durability: Sodium bentonite waterproof blanket not only
has good waterproof performance, but also has high destructive
resistance and durability, and can effectively resist the impact of
water erosion and environmental factors.
Product Application
1. Environmental engineering: waterproofing and impermeability of
landfills, sewage treatment plants, etc.
2. Water conservancy engineering: the waterproof layer of
reservoirs, DAMS, river management and other projects.
3. Traffic engineering: roadbed reinforcement and waterproofing of
roads and railways.
4. Construction: Waterproofing of basements, roof gardens, etc.
5. Garden landscape: seepage prevention of water feature projects
such as artificial lakes and ponds.
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 |
