Bond Behavior of CRACFST Columns after Exposure to Elevated Temperatures

Table 2

Mix proportion of the recycled coarse aggregate concrete.

Concrete type	r (%)	RCA (kg·m^−3)	Cement (kg·m^−3)	Sand (kg·m^−3)	NCA (kg·m^−3)	Water (kg·m^−3)	fcu (MPa)
C30	0	0	513	474	1218	195	35.5
	50	609	513	474	609	195	33.2
	100	1218	513	474	0	195	31.1
C40	0	0	454	595	1152	200	48.4
	50	576	454	595	576	200	45.2
	100	1152	454	595	0	200	40.3