Construction & Civil Engineering
High-swelling bentonite for containment, waterproofing, and ground engineering
Grades used in slurry walls, geosynthetic clay liners (GCL), waterproof linings, pond lining, and tunnelling. Indicative values; project-specific testing recommended.
Applications
Construction bentonite is used in slurry trenches for contaminant barriers, as a sealing layer in GCLs, and for waterproofing foundations, underground structures, and water reservoirs. The primary requirement is high and consistent free swell and low hydraulic conductivity; project values are confirmed by testing. Grades can be supplied in powder or pellet form.
Technical characteristics
Typical product specifications — indicative values. Final properties are confirmed for each production batch by laboratory analysis.
| Parameter | Typical value | Method |
|---|---|---|
| Viscosity | ≥ 35 cP | API 13A |
| pH | 9–11 | ASTM D4972 |
| Density | 1.03–1.10 g/cm³ | ASTM D854 |
| Sand content | ≤ 4% | API Sand Content Kit |
Packaging & logistics
- 25 kg paper bags
- 500 kg big bags (FIBC)
- 1 t bags available on request
- Bulk (contact us for volumes)
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Typical product specifications — indicative values. Final properties are confirmed for each production batch by laboratory analysis.