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

International Journal of Concrete Structures and Materials

Table 3 Compressive and tensile strength of specimens at ambient temperature.

Specimen ID	Day of test	Compressive Strength [MPa]	St.Dev [MPa]	C.o.V [%]	Tensile Strength [MPa]	St.Dev [MPa]	C.o.V [%]
N	28	47.2	0.78	1.66	2.57	0.06	2.43
N	42	53.4	2.70	5.06	3.03	0.26	8.67
St25	28	44.5	5.30	11.92	3.2	0.11	3.63
St25	42	52.6	1.89	3.59	3.88	0.19	4.9
St50	28	44.0	3.47	7.89	3.15	0.12	3.94
St50	42	52.3	0.40	0.76	3.83	0.09	2.42
HS	28	80.2	4.27	5.33	4.8	0.16	3.43
HS	42	84.5	2.38	2.82	5.2	0.15	2.97