Geotextile Composited Geo Membrane High Quality Engineering Application Materials

About this product

Definition and structure

1. Basic composition

Composite geomembrane is composed of at least two layers of different functional materials, usually including:

• Geomembrane layer: core anti-seepage layer, mostly made of polymer materials such as HDPE (high-density polyethylene) or EVA (ethylene-vinyl acetate copolymer).
• Geotextile layer: reinforcement layer, often polypropylene (PP) or polyester (PET) non-woven fabric, providing anti-puncture, filtration and drainage functions.
• Middle bonding layer: hot melt adhesive particles or adhesives are used in some designs to ensure interlayer peeling strength.

2. Typical structural examples

• Sandwich structure: The upper and lower layers of geotextiles sandwich the geomembrane, which is integrated into a hot melt process to avoid the aging problem of traditional adhesives.
• Drainage composite membrane: Add a three-dimensional drainage net or concave-convex structure between the geomembrane and the geotextile to enhance the drainage capacity.

Main application areas

1. Anti-seepage projects

• Water conservancy projects: lining of reservoirs, dams, and channels to prevent leakage (such as the use of composite geomembrane anti-seepage layer in the South-to-North Water Diversion Project).
• Environmental protection projects: anti-seepage isolation of landfills and sewage treatment pools to prevent the spread of pollutants.
• Agriculture and breeding: lining of fish ponds and reservoirs, corrosion-resistant and UV-resistant.

2. Construction projects

• Waterproof layer of basements and roof gardens, combined with drainage boards to form an integrated "anti-seepage + drainage" system.

Technical advantages

1. Performance improvement

• High strength: Geotextile has enhanced tensile and tear resistance, and is suitable for high stress environments.
• Durability: HDPE geomembrane is acid and alkali resistant, anti-aging, and has a service life of more than 50 years.
• Easy construction: Can be hot-melt welded, with high seam strength, reducing the risk of leakage.

2. Environmental protection and economy

Reduce the pollution of traditional anti-seepage materials (such as asphalt), and the composite structure reduces the amount of materials used.