Research Article
High-Temperature Performance and Multiscale Damage Mechanisms of Hollow Cellulose Fiber-Reinforced Concrete
Table 5
Influence of high temperature on mechanical properties of concrete.
| Concrete series | Temperature (°C) | Holding time (h) | Loss ratio of compressive strength (%) | Loss ratio of splitting tensile strength (%) |
| PC | 20 | — | — | — | 300 | 2.5 | 12 | 2 | 4 | 20 | 20 | 5.5 | 30 | 34 | 600 | 2.5 | 65 | 48 | 4 | 68 | 67 | 5.5 | 70 | 83 |
| CFRC | 20 | — | — | — | 300 | 2.5 | 3 | 2 | 4 | 6 | 3 | 5.5 | 17 | 29 | 600 | 2.5 | 47 | 52 | 4 | 54 | 65 | 5.5 | 60 | 72 | 800 | 2.5 | 78 | 77 | 4 | 82 | 81 | 5.5 | 80 | 80 | 1050 | 2.5 | 87 | 91 | 4 | 90 | 93 | 5.5 | 92 | 95 |
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