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