Large Reservoir Plastic Geomembrane
Large impoundment pond plastic membranes, made of high-density polyethylene or other durable materials, serve as impermeable barriers in the construction of impoundment ponds for water storage, wastewater containment, and environmental protection. These membranes are installed as liners at the bottom and sides of the ponds, with a focus on seam integrity and UV stability to ensure long-term performance.
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Support ODM/OEM.
The factory has stock and fast delivery.
Delivery Time: 10-20 working days
Minimum Order Quantity: 300 square meters
Payment Term: 30% T/T Deposit, 70% T/T Before Shipping
Advantages of HDPE Geomembranes
HDPE (High-Density Polyethylene) geomembranes are among the most widely used synthetic liners in engineering and environmental projects due to their exceptional performance across multiple dimensions. Below are their key advantages:
1. Superior Impermeability
Ultra-Low Permeability: HDPE geomembranes have a permeability coefficient as low as 10⁻¹³ cm/s, making them virtually impermeable to water, chemicals, and gases. This ensures reliable containment in applications like landfills, reservoirs, and hazardous waste storage.
Leak Prevention: Effectively blocks fluid migration, protecting soil and groundwater from contamination.
2. Exceptional Chemical Resistance
Broad Compatibility: Resistant to acids, alkalis, salts, oils, and most industrial chemicals, even in extreme pH environments (e.g., mining leachates or acidic wastewater).
Long-Term Stability: Does not degrade when exposed to aggressive substances, ensuring long-term performance.
3. High Durability and Lifespan
UV Resistance: Stabilized with carbon black, HDPE geomembranes withstand prolonged UV exposure without cracking or weakening.
Temperature Tolerance: Performs reliably in temperatures ranging from -60°C to 80°C, suitable for both Arctic and desert climates.
Longevity: Service life exceeds 50 years under proper installation and conditions.
4. Mechanical Strength
High Tensile Strength: Tensile strength exceeds 25 MPa, enabling resistance to punctures, tears, and stress caused by heavy loads or ground movement.
Flexibility: Maintains integrity even under deformation (e.g., settling substrates or seismic activity).
5. Ease of Installation and Adaptability
Seam Welding: Thermally welded to form continuous, seamless liners, minimizing weak points.
Terrain Adaptability: Conforms to complex geometries, including slopes, curves, and uneven surfaces.
Lightweight: Easier to transport and install compared to concrete or clay alternatives.
6. Environmental and Economic Benefits
Eco-Friendly: Inert and non-toxic, meeting EPA and global environmental standards. Prevents soil and water pollution.
Cost-Effective: Lower installation and maintenance costs than traditional materials (e.g., 1/3 the cost of concrete liners).
Reduced Waste: Minimizes resource consumption (e.g., water loss in reservoirs or agricultural ponds).
7. Versatile Applications
Water Management: Reservoirs, canals, aquaculture ponds.
Environmental Protection: Landfill liners, wastewater treatment lagoons.
Mining: Heap leach pads, tailings dams.
Industrial: Secondary containment for chemical storage.
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. | perGRIGM-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 | |||||
OvenAgingat85Cretainedafter90days （a）Standard OIT-％ （b）High Pressure OIT-％ | % | 55% 80% | per each formulation | ||||||
UV ResistanceHigh Pressure OIT-%retainedafter1600hrs | % | 50% | per each formulation | ||||||
Melt Index，condition190°C／2.16kg | 0.20g/10min | ||||||||
Key Engineering Applications
1. Landfills
Purpose: Primary and secondary liners to contain leachate.
Recommended Size:
Thickness: 1.5–2.5 mm (HDPE).
Width: 6–8 m to minimize seams.
Standards: ASTM D7467 (HDPE for landfills).
2. Water Reservoirs & Canals
Purpose: Prevent water seepage in irrigation or potable water storage.
Recommended Size:
Thickness: 0.75–1.5 mm (HDPE with UV stabilization).
Width: 5–7 m for ease of installation on slopes.
3. Mining
Applications:
Heap leach pads : 1.5–2.5 mm HDPE.
Tailings dams : 2.0–3.0 mm HDPE with chemical resistance.
Critical Features: High tensile strength (≥25 MPa) and acid resistance.
4. Agriculture
Applications:
Irrigation ponds : 0.5–1.0 mm LLDPE for cost efficiency.
Aquaculture liners : 1.0–1.5 mm HDPE to prevent soil contamination.
5. Transportation Infrastructure
Applications:
Road subgrades : 0.75–1.2 mm HDPE for moisture barrier.
Tunnel waterproofing : 1.5–2.0 mm reinforced geomembranes.
6. Energy Projects
Applications:
Solar farm bases : 1.0 mm white HDPE for weed control and reflectivity.
Oil/gas containment : 2.0–3.0 mm HDPE with hydrocarbon resistance.
Packaging:
Customer's company Logo mark can be added.
Packed in woven bags.
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