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| Categories | HDPE Geomembrane |
|---|---|
| Brand Name: | SZ |
| Model Number: | HDPE LDPE LLDPE |
| Certification: | ISO |
| Place of Origin: | CHINA |
| MOQ: | 30000 square meters |
| Price: | $0.3-$2.0/SQM |
| Payment Terms: | T/T,L/C |
| Supply Ability: | 100 Tons per day |
| Delivery Time: | 5-8 days |
| Packaging Details: | Packed in woven bag or your requirements |
| Product Name: | HDPE Geomembrane Liner |
| Thickness: | 45mil |
| Application: | Landfill |
| Function: | Pond Liner Pool Landscaping Membrane |
| Material: | HDPE LDPE LLDPE |
| Type: | Smooth or Textured |
| Length: | 50m-100m |
| Width: | 1m-8m |
| Company Info. |
| Shenzhou Earth Working Material Co. Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Yixing Shenzhou HDPE Geomembrane Characteristics and Performance
· Exceptional Impermeability: They have an extremely low water vapor permeability coefficient (K ≤ 1.0 × 10⁻¹³ g·cm/(cm²·s·Pa)), making them virtually impermeable to water and many other liquids .
· Outstanding Chemical Resistance: HDPE is highly resistant to a wide range of chemicals, including strong acids, alkalis, and salts, which is essential for containing industrial waste and leachate .
· High Mechanical Strength: They possess high tensile yield strength, tear resistance, and puncture resistance, allowing them to withstand significant stress and strain from the underlying subsoil and overlying materials .
· Durability and Longevity: Thanks to additives like carbon black and antioxidants, HDPE geomembranes offer excellent resistance to UV radiation, oxidation, and extreme temperatures (from -70°C to over 110°C), leading to a service life that can exceed 50 years .
· Environmental Stress Crack Resistance (ESCR): This property ensures that the material can withstand long-term tensile stresses in the presence of chemicals without cracking, which is crucial for its long-term performance .
ASTM Standard, GRI GM13 HDPE Geomembrane Specification:
Proper installation is critical to ensuring the performance of an HDPE geomembrane liner.
· Subgrade Preparation: The foundation must be carefully prepared—it should be smooth, compacted, and free of sharp objects like stones, roots, or debris that could puncture the membrane .
· Welding and Seaming: Panels of HDPE geomembrane are typically joined together using thermal fusion welding (either dual-track or extrusion welding) to create continuous, strong, and watertight seams. This process requires specialized equipment and trained, certified technicians .
· Quality Assurance: After welding, every seam must be tested for integrity. Common non-destructive test methods include air pressure testing for dual-track seams. Destructive tests are also performed on sample seams to verify strength .
· Protection: Once installed, the geomembrane often needs to be protected. This can involve covering it with a layer of soil or a geotextile (a non-woven fabric) to protect it from punctures, UV exposure, and mechanical damage during and after construction .
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