LDPE Geomembrane Design for Environmental Protection
LDPE geomembrane, or Low Density Polyethylene geomembrane, is a flexible, lightweight, and highly impermeable synthetic material used primarily for waterproofing, containment, and environmental protection purposes. It is made from low density polyethylene resin, which provides excellent chemical resistance, flexibility, and durability. LDPE geomembrane differs from HDPE (High Density Polyethylene) geomembrane in its density and resulting properties. LDPE has a lower density, making it more flexible and easier to install, but it may have slightly lower tensile strength and temperature resistance compared to HDPE, which is denser and often used in applications requiring higher strength and stiffness.
Specification：
Width:3-8m.
Length:30-100m
Thickness:0.3mm-3.0mm
Technical Data:
Mechanical Properties | Properties | Unit | Product Specification | Test Frequency | |||||
Thickness | mm | 0.75 | 1.00 | 1.50 | 2.00 | 2.50 | 3.00 | Per roll | |
Density | g/cc | 0.94 | 90,000kg | ||||||
Tensile Properties yield strength break strength yield elongation break elongation | kN/mkN/m%% | 11 20 12 700 | 15 27 12 700 | 22 40 12 700 | 29 53 12 700 | 37 67 12 700 | 44 80 12 700 | 9,000kg | |
Tear Resistance | N | 93 | 125 | 187 | 249 | 311 | 374 | 20,000kg | |
Puncture Resistance | N | 240 | 320 | 480 | 640 | 800 | 960 | 20,000kg | |
Stress Crack Resistance | hr. | 500hr. | Per GRI GM-10 | ||||||
Carbon Black Content | % | 2.0-3.0% | 9,000kg | ||||||
Reference Properties | Oxidative Induction Time （a）Standard OIT （b）High Pressure OIT | min | 100min. 500min. | 90,000kg | |||||
Oven Aging at 85 Cretained after 90days （a）Standard OIT-％ （b）High Pressure OIT-％ | % | 55% 80% | per each formulation | ||||||
UV Resistance High Pressure OIT-%retained after1600hrs | % | 50% | per each formulation | ||||||
Melt Index，condition190°C／2.16kg | 0.20g/10min | ||||||||
Advantages :
1. Exceptional Waterproofing and Impermeability
Highly Impermeable: LDPE geomembrane is renowned for its exceptional ability to prevent the penetration of water and other liquids. This feature is crucial in environmental protection applications such as landfills, wastewater treatment facilities, and mining sites, where the prevention of seepage and leakage is paramount to protect groundwater and surrounding ecosystems.
2. Flexibility and Ease of Installation
Flexibility: LDPE geomembrane exhibits high flexibility, allowing it to conform to irregular surfaces and structures with ease. This reduces the need for extensive cutting and seaming, simplifying the installation process and potentially lowering costs.
Lightweight: Being lightweight, LDPE geomembrane is easier to handle and transport, making it an attractive choice for large-scale environmental protection projects.
3. Durability and Longevity
Resistance to Chemicals and Aging: LDPE geomembrane is resistant to a wide range of chemicals and has excellent resistance to aging, ensuring long-term performance and durability. This translates into reduced maintenance requirements and a longer service life, which is beneficial for environmental protection projects that require long-term solutions.
4. Environmental Friendliness
Recyclability: LDPE geomembrane is a recyclable material, which aligns with sustainable practices and reduces waste. By promoting recycling, we can minimize the environmental impact of construction and disposal processes.
Reduced Chemical Usage: In agricultural applications, LDPE geomembrane can help reduce the need for pesticides and fertilizers by maintaining optimal soil conditions and moisture levels. This can lead to a more sustainable and environmentally friendly farming practice.
5. Cost-Effectiveness
Long-Term Savings: While the initial investment in LDPE geomembrane may be higher than some alternative materials, its long service life and reduced maintenance requirements can lead to significant cost savings over time. This makes LDPE geomembrane a cost-effective solution for environmental protection projects.
6. Versatility
Wide Range of Applications: LDPE geomembrane is suitable for a wide range of environmental protection applications, including but not limited to landfills, wastewater treatment facilities, mining sites, ponds, and canals. Its versatility makes it a valuable tool in addressing various environmental challenges.
In conclusion, LDPE geomembrane design offers numerous advantages for environmental protection, including exceptional waterproofing and impermeability, flexibility and ease of installation, durability and longevity, environmental friendliness, cost-effectiveness, and versatility. These advantages make LDPE geomembrane an ideal choice for a wide range of environmental protection projects.
Applications:
LDPE (Low Density Polyethylene) geomembrane has a wide range of applications due to its exceptional waterproofing properties, durability, and flexibility. Here are some key areas where LDPE geomembrane is commonly used:
1. Water Resources and Hydraulic Engineering
Water Retention Structures: LDPE geomembrane is ideal for use in the construction of ponds, lakes, reservoirs, and other water retention structures. It effectively prevents water seepage, ensuring the long-term integrity and functionality of these structures.
Canal Linings: In irrigation and drainage systems, LDPE geomembrane is used to line canals and channels, reducing water loss through seepage and improving water delivery efficiency.
2. Environmental Protection and Waste Management
Landfill Liners: LDPE geomembrane is a crucial component of landfill lining systems, providing a barrier that prevents the leakage of toxic leachate and harmful gases into the surrounding environment.
Wastewater Treatment Facilities: In wastewater treatment plants, LDPE geomembrane is used in various tanks and ponds to prevent the escape of untreated wastewater, ensuring compliance with environmental regulations.
3. Infrastructure and Civil Engineering
Tunnel and Subway Waterproofing: LDPE geomembrane is applied to the walls and floors of tunnels and subway stations to prevent water ingress and protect the structural integrity of these vital transportation links.
Roof Gardens and Green Roofs: LDPE geomembrane serves as a waterproofing layer beneath the soil and vegetation of roof gardens and green roofs, enabling the sustainable integration of greenery into urban spaces.
4. Agriculture
Irrigation Ponds and Tanks: LDPE geomembrane is used to line irrigation ponds and tanks, improving water storage capacity and reducing water loss through evaporation and seepage.
Aquaculture: In aquaculture operations, LDPE geomembrane is employed to construct fish ponds and other water bodies, providing a clean and safe environment for fish and other aquatic species.
5. Mining and Industrial Applications
Tailings Dams and Ponds: LDPE geomembrane is essential in the construction of tailings dams and ponds in mining operations, preventing the contamination of groundwater and surface water with toxic mine waste.
Chemical Storage Tanks: Its resistance to chemicals and solvents makes LDPE geomembrane suitable for use in the lining of chemical storage tanks, ensuring the safe containment of hazardous materials.
6. Landscape and Recreation
Ponds and Water Features: LDPE geomembrane is often used in the construction of decorative ponds, fountains, and other water features in parks, gardens, and residential areas, enhancing the aesthetic appeal and recreational value of these spaces.
Packaging:
Customer's company Logo mark can be added.
Packed in woven bags.
Producing & Storage:
Q&A:
Q: What can you buy from us?
A: Geomembrane,Geogrid,Geocell, Geotextile, Geocomposite, and so on.
Q: Can I have a sample?
A: Yes. And sample free.
Q: What's the payment terms?
A: T/T or L/C. Others could be negotiated.
