Parameters | OPC | Silica fume |
---|---|---|
SiO2 (%) | 22.1 | 96.03 |
Al2O3 (%) | 6.8 | 0.43 |
Fe2O3 (%) | 2.2 | 0.99 |
CaO (%) | 61.6 | 0.25 |
MgO (%) | 3.4 | 0.63 |
SO3 (%) | 2.4 | 0.30 |
Na2O (%) | 0.12 | 0.40 |
K2O (%) | 0.7 | 0.63 |
Average diameter (nm) | – | 0.1–10 µm |
Specific gravity | 3.15 | 2.23 |
Specific surface area (m2/g) | – | 29 |
LOI | 0.5 | 1.98 |