Open Access
Table 1
Physical properties and chemical composition of Portland cement (CEM I 52.5R).
| Physical properties | |||||||
|---|---|---|---|---|---|---|---|
| Properties | Unit | Value | |||||
| Specific gravity | g/cm3 | 3.15 | |||||
| Fineness | cm2/g | 4160 | |||||
| Water demand | % | 28.6 | |||||
| Compressive strength of cement at 28 days | MPa | > 50 | |||||
| Chemical composition (%) | |||||||
| C3S + C2S | CaO/SiO2 | MgO | C3S | C2S | C3A | C4AF | Gypsum |
| 79 | 3.1 | 0.8 | 66 | 13 | 8 | 8 | 4.8 |
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