Bentonite waterproof blanket (GCL)
Compared with compacted clay liner, it has the advantages of small volume, light weight, good flexibility, good sealing, high shear strength, simple construction and adaptability to uneven settlement.
Classification:
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Product specifications
Mass per unit area ≥ 4000 g/m2, width 4-6m
Performance characteristics
Compared with compacted clay liner, it has the advantages of small volume, light weight, good flexibility, good sealing, high shear strength, simple construction and adaptability to uneven settlement.
Use Role
Mainly used in environmental engineering waste gas landfill, underground reservoirs, underground infrastructure construction and other projects to solve the problem of sealing, isolation, anti-leakage, good effect, strong anti-destructive.
Technical index of bentonite waterproof blanket (JG/T193-2006)
| Project | Technical indicators | ||||
| GCL-NP | GCL-OF | GCL-AH | |||
| Mass per unit area of soil waterproof blanket (g/m²) | ≥ 4000 and not less than the specified value | ≥ 4000 and not less than the specified value | ≥ 4000 and not less than the specified value | ||
| Swelling index of bentonite (mL/2g) | ≥ 24 | ≥ 24 | ≥ 24 | ||
| Blue absorption (g/100g) | ≥30 | ≥30 | ≥30 | ||
| Tensile strength (N/100mm) | ≥ 600 | ≥ 700 | ≥ 600 | ||
| Elongation at maximum load% | ≥ 10 | ≥ 10 | ≥8 | ||
| Peel strength,(N/100mm) | Nonwovens and Woven Cloth | ≥ 40 | ≥ 40 | ||
| PE film and nonwovens | ≥30 | ||||
| Permeability coefficient (m/s) | ≤ 5.0x10-11 | ≤ 5.0x10-12 | ≤ 1.0x10-12 | ||
| Hydrostatic pressure resistance | 0.4MPa,1h, no leakage | 0.6MPa,1h, no leakage | 0.6MPa,1h, no leakage | ||
| Filtration loss mL | ≤ 18 | ≤ 18 | ≤ 18 | ||
| Bentonite Durability (mL/2g) | ≥ 20 | ≥ 20 | ≥ 20 | ||
Note: GCL-NP needling sodium-based soil-moistening waterproof blanket
GCL-OF needling sodium-based whole soil waterproof blanket
GCL-AH Adhesive Method Sodium Base Dense Moisturizing Soil Waterproof Blanket
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