At 50°F (10°C)
Percentage design strength required | Type cement used in mix I II III | ||
50% | 6 | 9 | 3 |
65% | 11 | 14 | 5 |
85% | 21 | 28 | 16 |
95% | 29 | 35 | 26 |
At 70°F (21°C) Days
| Percentage design strength required | Type cement used in mix I II III | ||
| 50% | 6 | 9 | 3 |
| 65% | 11 | 14 | 5 |
| 85% | 21 | 28 | 16 |
| 95% | 29 | 35 | 26 |
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