HDPE Compound Geomembrane 0.2-3mm Thickness for Cofferdam Construction with 20KN Breaking Strength
Price:
0.41USD~5.5USD per sqm
MOQ:
300㎡
Delivery Time:
7-15 days
Brand:
JianYi
Product Description
Versatile Compound Geomembrane - Optimal Construction Solution
Advanced composite geosynthetic material combining geotextiles with polymer membranes for superior seepage control, protection, and reinforcement in demanding construction applications.
Product Overview
Compound geomembrane is a high-performance geosynthetic material composed of two or more layers, typically combining geotextiles (or fibers) with polymer materials such as PE film or EVA. Manufactured through calender or hot melt coating processes, this composite structure utilizes geotextiles for drainage guidance while polymer materials serve as the impermeable barrier.
Key Features & Benefits
- Superior seepage control and waterproofing capabilities
- Enhanced protection and reinforcement functions
- Excellent drainage and isolation properties
- High toughness and exceptional chemical resistance
- Superior anti-aging performance compared to single-layer materials
- Rapid stress transfer and dispersion across surface irregularities
- Effective heat preservation and frost heave protection
- Convenient installation with wider application range
Applications
- Earth-rock dams, rockfill dams, masonry dams, and roller compacted concrete dams
- Channels, liquid storage pools, pits, and mining applications
- Waterproof layer for expansive soil and collapsible loess
- Cofferdam construction and temporary water barriers
- Lining seepage control for subways, basements, and tunnels
Construction Guidelines
- Edge welding bead lap width: 80mm-100mm
- Ensure clean, dry surfaces free of dirt, moisture, and dust at joints
- Maintain proper welding width with smooth, crease-free alignment
- Refer to detailed geomembrane construction scheme for specific requirements
Technical Specifications (GB/T 17642-2008)
Primary Specifications
| Item | Specifications | Remark |
|---|---|---|
| Geotextile Unit Weight (g/㎡) | 300 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | |
| Geomembrane Thickness (mm) | 0.25-0.35 | 0.30-0.50 | |
| Nominal Fracture Strength (KN/m) | 2.50 | 7.50 | 10 | 12 | 14 | 16 | 18 | 20 | |
| Breaking Strength (KN/m,≥,LD/TD) | 2.50 | 7.50 | 10 | 12 | 14 | 16 | 18 | 20 | |
| Standard Intensity Elongation Rate (%) | 30~100 | |
| CBR Burst Strength (KN,≥) | 0.70 | 1.50 | 1.90 | 2.20 | 2.50 | 2.80 | 3.00 | 3.20 | |
| Longitudinal Tear Strength (KN,≥) | 0.05 | 0.25 | 0.32 | 0.40 | 0.48 | 0.56 | 0.62 | 0.70 | |
| Peel Strength (N/cm,≥) | 6 | |
| Vertical Permeability Coefficient (cm/s) | According to design or contract | |
| Width Variation (%) | -1.00 |
Hydrostatic Pressure Specifications
| Geomembrane Thickness (mm) | 0.20 | 0.30 | 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 1.00 | Remark |
|---|---|---|---|---|---|---|---|---|---|
| One Geotextile + One Geomembrane (Mpa) | 0.40 | 0.50 | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | |
| Two Geotextiles + One Geomembrane (Mpa) | 0.50 | 0.60 | 0.80 | 1.00 | 1.20 | 1.40 | 1.60 | 1.80 |
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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