Introduction to 2.0mm Double Textured Rough Geomembrane
I. Specifications Table
Specification | Details |
Thickness | 2.0mm (nominal, with a tolerance range to ensure quality control in production, usually ±0.1mm to maintain consistency) |
Texture | Double textured rough surface. The roughness height on each side is approximately 0.5 - 1.0mm, which is designed to optimize friction and interlocking capabilities. The pattern layout is engineered for maximum contact area with adjacent materials. |
Material | Composed mainly of high-density polyethylene (HDPE). The HDPE contains specific additives to enhance properties. For example, anti-oxidants are added to resist long-term degradation, typically at a concentration of around 0.5% - 1.0% by weight. |
Key Specifications:
| Property | Value |
|---|---|
| Thickness | 2.0mm |
| Texture | Double-textured (rough both sides) |
| Material | HDPE or equivalent polymers |
| Tensile Strength | High |
| UV Resistance | Excellent |
| Chemical Resistance | Excellent |
| Temperature Range | -40°C to 80°C |
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II. Manufacturing Standards
International Standards Compliance: It adheres to the relevant ASTM (American Society for Testing and Materials) standards. For instance, ASTM D4437 dictates the requirements for polyethylene geomembranes, covering aspects like thickness tolerance, tensile strength, and elongation. In terms of tensile strength, the 2.0mm double textured rough geomembrane must meet a minimum value of [X] N/mm (the specific value is determined based on extensive testing and industry benchmarks), ensuring it can withstand installation and operational stresses.
Quality Control Procedures: During manufacturing, strict quality control is implemented. Each roll is subject to thickness measurement at multiple points along its length and width using precision gauges. Visual inspections are carried out to check for any defects in the texture, such as incomplete patterns or surface irregularities. Additionally, samples are taken regularly for laboratory testing of chemical resistance, permeability, and UV resistance to guarantee that the product conforms to the set standards throughout the production batch.
III. Performance Advantages
Friction and Stability Enhancement: The double textured rough surface provides exceptional grip. In slope stabilization projects like road embankments, the geomembrane's texture locks with the soil, preventing soil erosion and slope failure. Compared to smooth geomembranes, its coefficient of friction against soil is increased by approximately 30% - 50%, depending on soil type and moisture content. This added friction significantly improves the overall stability of the structure.
Anti-seepage Excellence: With a permeability coefficient as low as [X] × 10⁻¹² cm/s (again, a value determined through standardized testing), it forms an almost impermeable barrier. In water treatment pond linings, it prevents the seepage of treated water, conserving water resources and protecting the surrounding soil from contamination. Its molecular structure and material composition work together to resist water pressure, even in deep water bodies where hydrostatic pressure can be substantial.
Durability and Longevity: Resistant to UV radiation, it can withstand continuous exposure to sunlight for over 20 years without significant loss of mechanical properties. In outdoor applications such as golf course water features, it remains functional and structurally sound. Its resistance to chemicals, including common acids and alkalis found in industrial runoff or agricultural fertilizers, ensures its durability in diverse environments.
IV. Application Examples
Agricultural Irrigation: In drip irrigation systems, the 2.0mm double textured rough geomembrane is used to line the reservoirs and canals. The rough texture helps in anchoring the pipes and fittings, preventing displacement. In a large-scale agricultural farm, it has been used to line a 10,000-square-meter reservoir, reducing water seepage by over 90% compared to unlined reservoirs, thus optimizing water usage for crop irrigation.
Mining Industry: In tailings ponds, where mine waste is stored, the geomembrane acts as a critical containment layer. The thickness and strength of the 2.0mm variant can handle the heavy loads from the slurry and prevent leakage of toxic substances into the groundwater. For example, in a copper mine, the geomembrane has been in use for five years, effectively containing the tailings and protecting the local ecosystem.
Roofing Applications: In green roof systems, it serves as a waterproofing layer. The rough surface provides a good bond with the overlying growing medium, preventing slippage. In a commercial building with a 500-square-meter green roof in a city center, the geomembrane has kept the building interior dry while supporting the growth of plants on the roof, enhancing the building's environmental and aesthetic features.
In conclusion, the 2.0mm double textured rough geomembrane, with its adherence to manufacturing standards, outstanding performance advantages, and diverse applications, plays a crucial role in modern engineering and infrastructure development.
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