Experimental Study on the Effect of Freeze-Thaw Cycles on Axial Tension and Compression Performance of Concrete after Complete Carbonization

Table 1

Mixture ratio (kg·m⁻³).

Strength grade	Mixture ratio
	Water (kg·m^−3)	Cement (kg·m^−3)	Fly ash (kg·m^−3)	Sand (kg·m^−3)	Coarse aggregate (kg·m^−3)	Water reducer (kg·m^−3)
C30	225	300	75	711	1089	0
C40	200	319	80	730	1008	0
C45	173	350	87	740	1022	1.57