Pozzolana
Natural volcanic pozzolan used as a supplementary cementitious material: improves durability, lowers heat of hydration and clinker content in blended cements and concrete. Standard and black (high-silica) grades.
- Formula / grade
- SiO₂ ≥ 45% (standard), ≥ 70% (black)
- CAS number
- —
Typical specifications
| Category | Minerals |
|---|---|
| Origin | Algeria |
| SiO₂ | ≥ 45% (standard), ≥ 70% (black) |
| Al₂O₃ | 10-15% (black) |
| Color | Red-brown, Black/Dark grey |
| Form | Lump, Powder |
| Applications | Blended cement, Concrete admixture, Construction |
Specifications are indicative. Final specifications are confirmed in each offer, with the supplier's certificate of analysis.