Research Article
Reduction of Postfire Properties of High-Strength Concrete
Table 4
Residual properties of concrete specimens after cooling to ambient temperature (96 h)—(a).
| Property | Temperature level (°C) | 230 | 400 | 500 | 600 |
| (MPa) | 54.6 | | 42.5 | | 30.4 | | 17.0 | | 57.2 | Mean 54.5 | 41.9 | Mean 43.0 | 26.9 | Mean 27.6 | 15.6 | Mean 17.4 | 51.7 | | 44.7 | | 25.5 | | 19.6 | |
| (MPa) | 30205 | | 17057 | | 10892 | | 6639 | | 25834 | Mean 28309 | 16788 | Mean 16886 | 10646 | Mean 10393 | 6227 | Mean 6406 | 28889 | | 16814 | | 9642 | | 6352 | |
| (MPa) | 31745 | | 16362 | | 11091 | | 6752 | | 28254 | Mean 29206 | 16410 | Mean 16463 | 8401 | Mean 9489 | 10363 | Mean 8337 | 27619 | | 16616 | | 8975 | | 7896 | |
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