Study on the Dynamic Properties of Concrete under Freeze-Thaw Cycles and CT Fine View Damage

Table 2

Impact compression test results for concrete subjected to freeze-thaw cycles.

Number of freeze-thaw cycles	Specimen number	Peak strength (MPa)	Peak strength average value (MPa)	Peak strain	Peak strain average value	Modulus of elasticity (GPa)	Mean modulus of elasticity (GPa)
0	A1	70.16	69.28	0.00879	0.00852	17.39	17.13
	A2	68.54		0.00835		17.11
	A3	69.15		0.00842		16.89
25	B1	65.04	64.42	0.00944	0.00912	15.78	15.05
	B2	64.32		0.00911		15.31
	B3	63.89		0.00880		14.06
50	C1	58.31	59.81	0.0099	0.00965	14.18	13.28
	C2	61.15		0.00943		12.54
	C3	59.97		0.00962		13.11
75	D1	58.86	57.39	0.0110	0.01038	11.51	11.89
	D2	57.19		0.0102		12.71
	D3	56.12		0.00994		11.45
100	E1	56.09	55.81	0.01180	0.01103	11.20	10.70
	E2	55.47		0.01040		10.98
	E3	55.87		0.01090		9.91