Table 1.
Physical properties of ordinary Portland cement (OPC).
| Fineness/% | Stability | Setting Time/min | Flexural Strength/MPa | Compressive Strength/MPa | |||
|---|---|---|---|---|---|---|---|
| Initial | Final | 3 days | 28 days | 3 days | 28 days | ||
| 1.5 | Qualified | 181 | 378 | 5.1 | 9.3 | 25.3 | 51.6 |
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