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HDPEGeotextile membraneIt is one type of geosynthetic materials, with their application originating in the 1950s. In China, the domestic geomembrane was part of the 8.5 Plan. HDPE geomembrane is a waterproof and barrier material produced from (medium to) high-density polyethylene resin (with a density of 0.94g/cm3 or higher).
Performance Features:
1. Free from chemical additives and未经 heat treatment, it is a type of building material.
2. Excellent mechanical properties, good permeability, and resistance to corrosion and aging.
3. Highly resistant to burial and corrosion, the structure is fluffy with excellent drainage properties.
4. Excellent coefficient of friction and tensile strength, with geosynthetic reinforcement properties.
5. Features include isolation, anti-filtration, drainage, protection, stabilization, and reinforcement.
6. Adaptable to uneven subgrades, resistant to construction force damage, and has low creep.
7. Good overall continuity, lightweight, and easy to install.
8. Designed for permeable materials, it offers excellent anti-filtration isolation and strong puncture resistance, thereby providing superior protective properties.
Function and Application:
Primarily used in anti-seepage lining projects for landfill sites, wastewater treatment, water conservancy, agriculture, transportation, high-speed rail, tunnels, airports, buildings, and landscapes.
Construction Plan Specifications:
Do not drag or pull the geotextile membrane roughly during transportation; avoid sharp objects piercing it.
1. Extend from the bottom to the top, without pulling too tightly. Retain a 1.50% allowance for potential local sagging and stretching. Given the specific conditions of this project, the slope should be laid in an order from top to bottom.
2. The longitudinal joints of adjacent panels should not align on a single horizontal line, and they should be staggered by more than 1 meter.
3. Vertical joints should be located more than 1.50 meters above the dam foot and bend corners, and should be set on a flat surface.
4. First the slope, then the field bottom.
5. When laying along the slope, the direction of the film should generally be parallel to the line of the steep slope.
Product Specifications:
0.3mm to 3mm thickness, width 1m to 8m, length as per customer's request.
Geotextile Membrane New Standard:
Serial Number | Item | Index | ||||
LDPE | LLDPE | EVA | HDPE | |||
Standard | ||||||
1 | Thickness: mm | 0.2-3.0 | 0.2-3.0 | 0.2-4.0 | 0.2-4.0 | |
2 | Width: m | 2.5-9.0 | 2.5-9.0 | 2.5-8.0 | 2.5-8.0 | |
3 | Tensile Strength (Longitudinal and Transverse) MPa | >=14 | >=16 | >=16 | >=17 | >=25 |
4 | Tensile elongation (%) (in both directions) | >=400 | >=700 | >=550 | >=450 | >=550 |
5 | Tear Strength at 90°, N/mm | >=50 | >=60 | >=60 | >=80 | >=110 |
6 | Steam Permeability Coefficient g. cm/(cm²·s·Pa) | <1.0*10 | <1.0*10 | <1.0*10 | ——— | ——— |
7 | Operating Temperature Range | +70℃﹋-70℃ | +70℃﹋-70℃ | +70℃﹋-70℃ | ——— | ——— |
8 | Carbon Black Content % | ——— | ——— | ——— | 2.0-3.0 | |
9 | Environmental Stress Cracking Resistance | ——— | ——— | ——— | >=1500 | |
10 | -70℃ Low Temperature Impact Brittleness Property | ——— | ——— | ——— | Through pass | |
11 | 200°C oxidation induction time | ——— | ——— | |||
