Table 10.
Compressive strength of concrete.
| Concrete age/d | 7 | 14 | 28 |
| Static compressive strength/MPa | 2.3 | 2.5 | 3.6 |
| Dynamic tensile strength/MPa | 4.9 | 5.4 | 7.8 |
| Safe distance/m | 4.0 | 3.4 | 2.6 |
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