Landfill liners are high-performance geosynthetic barriers designed to prevent leachate migration and groundwater contamination. Our liners combine HDPE, LLDPE, and PVC materials with advanced manufacturing techniques to meet EPA Subtitle D, GRI-GM13, and ASTM D4437 standards.
Key Features & Benefits
- Material Options
- HDPE Liners: 1.0–2.5mm thickness, UV-resistant, chemical inertness (pH 1–14)
- LLDPE Liners: Enhanced flexibility (700% elongation), ideal for uneven subgrades
- Reinforced PVC: Puncture-resistant (≥500N), weldable seams for complex geometries
- Technical SpecificationsParameterHDPELLDPEPVCTensile Strength≥25 MPa≥20 MPa≥17 MPaPermeability≤1×10⁻¹³ cm/s≤5×10⁻¹² cm/s≤1×10⁻¹² cm/sTemperature Range-60°C to 80°C-70°C to 90°C-40°C to 60°C
- Installation Advantages
- Prefabricated panels (up to 8m width) reduce field seams
- Textured surfaces (0.5–1.5mm asperities) improve slope stability
- Custom anchoring systems for seismic zones
Landfill Liners Standard Dimensions
| Parameter | HDPE Geomembrane | Geosynthetic Clay Liner (GCL) | Compacted Clay Liner (CCL) |
|---|---|---|---|
| Thickness | 1.0–3.0 mm | 5–10 mm (hydrated) | ≥600 mm (per EPA Subtitle D) |
| Panel Width | 5–8 m (seamed rolls) | 4–5 m (prefabricated) | N/A (constructed in situ) |
| Roll Length | 50–100 m | 30–60 m | N/A |
| Permeability | ≤1×10⁻¹³ cm/s | ≤5×10⁻⁹ cm/s (hydrated) | ≤1×10⁻⁷ cm/s |
| Overlap Requirement | 150 mm (heat-welded) | 300 mm (bentonite overlap) | 150 mm (compacted layers) |
Applications
- Municipal Solid Waste (MSW) Landfills
- Hazardous Waste Containment
- Coal Ash Impoundments
- Mining Heap Leach Pads
Why Choose Our Liners?
- 20+ Years Service Life: Carbon black stabilization delays oxidative degradation
- Third-Party Certified: SGS-tested shear strength (>30 kN/m²)
- Global Project Support: Over 500 installations across 30 countries
