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GBStandards cited
Summary: Rigid landfills use concrete cells lined with >=2.0 mm double-textured HDPE membrane per GB 18598 hazardous waste control requirements, with independent leakage detection per cell so any single failure is locatable and repairable.
Selection Table
| Position / function | Recommended material | Standard |
|---|---|---|
| Cell inner liner | 2.0 mm double-textured HDPE | GB/T 17643-2025 |
| Under-membrane protection | 800 g/m2 filament geotextile | GB/T 17639-2023 |
| Leak detection layer | Composite drainage geonet + pipes | GB/T 40441-2021 |
Installation Steps
- Grind and clean concrete base, round internal corners
- Lay protection layer and fix
- Line 2.0 mm membrane; double-seam on flats, extrusion welding at corners
- 100% air pressure + vacuum testing, repair and retest
- Install leak detection layer and observation pipes
- Hidden-work acceptance with photos and records before closing each cell
