Table 1 Chemical composition and physical characteristics of the cementitious materials and aggregates.
Name | Cement | Silica fume | Fly ash | Metakaolin | Machine-made sand | Glass sand | |
|---|---|---|---|---|---|---|---|
Chemical composition (%) | MgO | 0.97 | - | - | - | 0.06 | 1.15 |
Cl− | 0.125 | 0.125 | - | - | - | - | |
SO3 | 2.45 | - | 0.10 | - | - | - | |
SiO2 | - | 90.14 | - | 54.31 | 77 | 72.81 | |
CaO | - | - | 0.68 | - | 3.6 | 8.74 | |
Al2O3 | - | - | - | 44.23 | 11 | 2.62 | |
Fe2O3 | - | - | - | - | 7.8 | 0.18 | |
K2O | - | - | - | - | 0.06 | 0.72 | |
Na2O | - | - | - | 0.3 | 0.04 | 13.35 | |
Physical characteristics | Specific surface area (m2/kg) | 363 | - | - | - | - | - |
Loss on ignition (%) | 1.50 | 1.37 | 0.77 | - | - | - | |
Fineness (%) | - | - | 10.6 | - | - | - | |
Crushing value (%) | - | - | - | - | 89.6 | 90.9 |