As introduced by a leading manufacturer in Shandong, anti-seepage geomembranes serve crucial roles in various industries due to their excellent physical and chemical properties. These membranes are widely used in coastal construction, river embankments, reservoirs, diversion tunnels, highways, railways, airports, and underground projects. They are also specifically designed for specialized applications like lotus farming, sedimentation ponds, and livestock farms.

Key Functions of Anti-Seepage Geomembranes

1. High Tensile Strength:
   Geomembranes are known for their ability to resist stretching forces, making them suitable for high-stress applications.

2. High Impact Strength:
   They can endure heavy impacts without tearing or puncturing, ensuring long-term durability.

3. Excellent Anti-Seepage Performance:
   With exceptional impermeability, they prevent liquid leakage in water retention and waste containment systems.

4. Resistance to Environmental Factors:
   These membranes are resistant to acids, alkalis, heat, weathering, and abrasion, making them ideal for diverse and challenging environments.

5. Wide Application Range:
   Anti-seepage geomembranes are used extensively in coastal regions, dams, tunnels, roads, railways, and underground structures. They also play a critical role in aquaculture, sedimentation ponds, and animal husbandry.

Structural Composition for Anti-Seepage Geomembrane Systems

To perform effectively, an anti-seepage geomembrane system typically consists of the following five layers (from bottom to top):

1. Support Layer: Provides a stable foundation, typically made of compacted soil.
2. Lower Cushion Layer: Serves as a transitional layer, often constructed with gravel or sand.
3. Geomembrane Layer: Acts as the core anti-seepage barrier.
4. Upper Cushion Layer: Protects the geomembrane, also made of gravel or sand.
5. Protective Layer: Shields the system from weathering and corrosion, made of stones, masonry, or concrete slabs.

Composite geomembranes with thick geotextiles on both sides can also function as filtration layers, enhancing drainage and gas release while stabilizing the geomembrane.

Site Preparation for Geomembrane Installation

1. Surface Cleaning:

   • Use graders to level the landfill area and manually remove weeds, stones, debris, and loose soil.
   • If deep plant roots are visible, remove them manually to avoid damaging the membrane.

2. Filling and Compaction:

   • Use silt clay as the backfill material, compacting layer by layer to achieve a density not less than 0.95.
   • Backfill soil must be chemically compatible, with minimal calcium content to prevent chemical reactions.

3. Rocky Areas:

   • For areas with sharp-edged rocks, level and smooth the surface before installing the geomembrane.
   • Use cement mortar to even out irregularities for added protection.

Anti-seepage geomembranes are a vital component of modern construction, offering unmatched durability, impermeability, and resistance to environmental stresses. With proper installation and structural design, they can meet the needs of diverse engineering applications while ensuring long-term stability and protection. Shandong manufacturers provide high-quality products tailored to both domestic and international markets, ensuring that these versatile materials continue to drive innovation in the construction industry.