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Table 7 Comparison between the experimental and predicted tensile strength.

From: Prediction of the Tensile Strength of Normal and Steel Fiber Reinforced Concrete Exposed to High Temperatures

Vf [%] 0.25 0.5
T(°C) \({f_t}_{_{\exp }}\)
[MPa]
St.Dev
[MPa]
C.O.V
[%]
\({f_t}_{_{\text{calc} }}\)
[MPa]
∆[%] \({f_t}_{_{\exp }}\)
[MPa]
St.Dev
[MPa]
C.O.V
[%]
\({f_t}_{_{\text{calc} }}\)
[MPa]
∆[%]
28 3.88 0.19 3.97 3.40 − 12.38 3.83 0.09 2.42 3.78 − 1.35
100 2.81 0.27 2.81 2.55 − 9.07 3.12 0.28 9.09 3.13 0.35
200 2.75 0.18 2.75 2.14 − 21.92 2.82 0.20 7.00 2.99 6.11
300 2.46 0.15 2.46 2.36 − 3.99 3.27 0.35 10.68 3.17 − 3.06
350 2.80 0.20 2.80 2.60 − 7.09 3.48 0.20 5.66 3.20 − 7.84
400 2.73 0.05 2.73 2.89 6.13 2.92 0.33 11.20 3.09 5.78
450 2.71 0.26 2.71 2.50 − 7.71 3.50 0.21 5.94 3.34 − 4.43
500 2.25 0.12 2.25 2.12 − 5.62 2.55 0.28 11.12 2.85 11.50
650 1.49 0.13 1.49 1.28 − 14.17 1.79 0.67 37.66 1.70 − 5.14
800 0.92 0.04 0.92 0.90 − 2.95 0.95 0.05 5.04 1.05 10.79