GGBFS (Ground Granulated Blast Furnace Slag)
Cementitious by-product from iron production for sustainable concrete. Enhances durability, reduces permeability, and provides excellent resistance to sulfate and chloride attack.
- Formula / grade
- CaO 35-45% ; SiO₂ 30-40%
- CAS number
- 65996-69-2
Typical specifications
| Category | Construction |
|---|---|
| CaO | 35-45% |
| SiO₂ | 30-40% |
| Al₂O₃ | 8-18% |
| Fineness | ≥ 400 m²/kg |
| Glass content | ≥ 90% |
| Standard | ASTM C989, EN 15167 |
Specifications are indicative. Final specifications are confirmed in each offer, with the supplier's certificate of analysis.