Waterproofing Bentonite Geosynthetic Clay Liner 4000g/㎡ for Subway & Tunnel Projects with 15-17x Expansion
Price:
0.83USD~2.75USD per sqm
MOQ:
180㎡
Delivery Time:
30 days
Brand:
JianYi
Product Description
Waterproofing Bentonite Geosynthetic Clay Liner
Sodium bentonite waterproof blanket is an environmentally friendly composite impermeable material that provides exceptional anti-seepage performance for demanding engineering applications.
Key Properties
The primary component is sodium bentonite (montmorillonite), which expands significantly when hydrated. This mineral absorbs up to 5 times its weight in water and expands 15-17 times its original volume, forming a dense, viscous colloidal barrier with superior filtration resistance.
Applications
- Landfill foundation treatment and capping systems
- Artificial lakes, reservoirs, channels, and river seepage prevention
- Roof gardens and underground building waterproofing (basements, subways, tunnels)
- Municipal engineering and underground construction projects
- Industrial waste treatment facilities and environmental protection projects
Product Specifications
Standard Specifications:
Unit Weight: ≥4000g/㎡ (customizable)
Width: 4m-6m
Roll Length: Customizable
Unit Weight: ≥4000g/㎡ (customizable)
Width: 4m-6m
Roll Length: Customizable
Technical Performance (JG/T 193-2006)
| Parameter | GCL-NP (Needle Punched) |
GCL-OF (Needle Punched & Cocoon) |
GCL-AH (Viscose Process) |
|---|---|---|---|
| Unit Weight (g/㎡) | ≥4000 | ≥4000 | ≥4000 |
| Bentonite Swell Index (ml/2g) | ≥24 | ≥24 | ≥24 |
| Blue Clay (g/100g) | ≥30 | ≥30 | ≥30 |
| Tensile Strength (N/mm) | ≥600 | ≥700 | ≥600 |
| Elongation at Max Load (%) | ≥10 | ≥10 | ≥8 |
| Peel Strength (N/100mm) | No-woven & Woven: ≥40 | No-woven & Woven: ≥40 PE Geomembrane: ≥30 |
- |
| Permeability Coefficient (m/s) | ≤5.0×10⁻¹¹ | ≤5.0×10⁻¹² | ≤1.0×10⁻¹² |
| Hydraulic Pressure Resistance | 0.4MPa, 1h, No Leakage | 0.6MPa, 1h, No Leakage | 0.6MPa, 1h, No Leakage |
| Fluid Loss (m/L) | ≤18 | ≤18 | ≤18 |
| Bentonite Durability (mL/2g) | ≥20 | ≥20 | ≥20 |
Note: All specifications can be customized according to project requirements.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changsha Jian-Yi New Material Co., Ltd.
Location
Chuangye Avenue,Ningxiang Economic Development Zone,Changsha City,Hunan Province,P.R.C.
Contact Person
Sara