- Overview
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Basic Info.
Product Description
HDPE Geomembrane is a impermeable polymer liner and the largest type of geosynthetics. It is used for a wide and growing range of applications, including fish water ponds, shrimp water ponds, artificial lake, landfills, lagoons, channels and ornamental ponds, and are found in environmental, geotechnical, transport and hydraulic applications, in addition to other engineering works.
HDPE Smooth Geomembrane is a black, high quality, high density polyethylene (HDPE) geomembrane produced from specially formulated polyethylene resin. The polyethylene resin is designed specifically for flexible and durable geomembrane applications.
HDPE Smooth Geomembrane contains approximately 97.5% polyethylene, 2.2% carbon black and trace amounts of antioxidants and heat stabilisers. HDPE Smooth Geomembrane has outstanding chemical resistance, mechanical properties, environmental stress crack resistance, dimensional stability and thermal aging characteristics.
HDPE Smooth Geomembrane has excellent resistance to UV radiation and is suitable for exposed applications. These product specifications meet or exceed GRI-GM13.
Item | Test Value | ||||||
0.30 mm | 0.5 mm | 0.75 mm | 1.0 mm | 1.5 mm | 2.0 mm | 3.0 mm | |
Minimum Density(g/cm³) | 0.94 | ||||||
Strength at yield,N/mm | 5 | 8 | 11 | 15 | 22 | 29 | 44 |
Strength at break ,N/mm | 8 | 14 | 20 | 28 | 40 | 53 | 80 |
Elongation at yield,% | 13 | ||||||
Elongation at break,% | 720min | ||||||
Tear Resistance N | 40 | 65 | 93 | 125 | 190 | 250 | 375 |
Puncture Resistance N | 105 | 176 | 240 | 320 | 480 | 640 | 960 |
Stress Crack Resistance, hrs | 300 | ||||||
Carbon Black Content, % | 2.0-3.0 | ||||||
Carbon Black Dispersion | 1 or 2 | ||||||
Standard OIT Min | 100 | ||||||
High Pressure OIT Min | 400 | ||||||
85ºC Heat aging(OIT Retention rate at Normal pressure after 90d ) % | 85 | ||||||
UV resistance (OIT retention rate after 1600 hours of UV radiation) | 65 | ||||||
Impact Cold Crack at -70°C | Pass | ||||||
Water vapor permeability (g.cm/cm2 .s.Pa) | ≤1.0×10-13 | ||||||
Dimensional Stability (%) | ±2 |
High-density polyethylene (HDPE) liner is one of the most widely used geomembranes in the world. It is a durable and flexible material that is designed to protect the environment, prevent water loss, and provide a variety of other benefits. Here are 20 characteristics of HDPE liner that make it a popular choice:
2. UV-resistant: HDPE liner is resistant to UV radiation, which makes it ideal for use in areas with high levels of sunlight exposure.
3. Stable under extreme temperatures: HDPE liner can withstand extreme temperatures and remain stable.
4. Flexible: HDPE liner is highly flexible and can conform to irregular surfaces.
5. Strong and durable: HDPE liner is strong and durable, which makes it resistant to punctures and tears.
6. High tensile strength: HDPE liner has high tensile strength, which means it can withstand heavy loads and pressure.
7. Lightweight: HDPE liner is lightweight, which makes it easy to transport and install.
8. Waterproof: HDPE liner is waterproof, which makes it ideal for lining ponds, reservoirs, and other water containment structures.
HDPE geomembranes are an excellent choice in wastewater treatment processes, and here's why. First and foremost, it is a highly effective barrier that prevents contaminants from escaping into the surrounding environment. Additionally, it is flexible and durable, making it ideal for a variety of applications.
To use HDPE geomembrane for wastewater treatment, the first step is to properly prepare the site. This usually involves excavating the area, removing any organic material, and compacting the soil to ensure a stable foundation. Once the site is ready, the geomembrane can be installed.
Geomembranes are typically laid out in large sheets and then welded together at the seams using specialized equipment. This creates a seamless barrier that can withstand the harsh conditions of wastewater treatment. After a geomembrane is installed, it can be covered with soil or other materials to provide additional protection and stability.
One of the main advantages of using HDPE geomembrane in wastewater treatment is its ability to prevent water loss. This is especially important where water is scarce or expensive to treat. In addition, geomembranes can help prevent contaminants from migrating into groundwater sources, protecting human health and the environment.
For example, landfills, sewage treatment plants, power plant regulating pools, industrial and hospital solid waster, construction and blasting waste etc.
For example, seepage prevention, leakage stoppage, and reinforcement of rivers, lakes, reservoirs and slope protection, etc.
For example, tunnel, subway, underground works of buildings and roof cisterns, impervious roof garden, lining of sewage pipes, etc.
For example, anti seepage of bottom lining of washing pond, heap leaching pool, ash yard, dissolving pool, sedimentation tank, storage tard, tailings pond, etc.
2. Tow adjacent longitudinal joints should not be in a horizontal line, should bestaggered more than 1m each other.
3. Longitudinal joints should be more than 1.50m away from the dam foot and bending foot, and should be located on the plane.
4. When the slope is laid, the direction of spreading film should be basically parallel to the slope line.
5. The construction, first of all to use small diameter sand or clay levelingbase, and then laid the geomembrane. The geomembrane should not be stretched too tight, and the part of the soil bured at both ends is corrugated. A transitional layer of about 10cm is laid on the geomembrane with sand or clay.
HDPE geomembrane is safe for the environment and does not contain any harmful chemicals that could leach into the surrounding soil or groundwater.