Equation for the Degradation of Uniaxial Compression Stress of Concrete due to Freeze-Thaw Damage

Table 3

Quasi-static compression test data and elastic modulus after different numbers of freeze-thaw cycles.

Number of freeze-thaw cycles	(MPa)	(10^−6)		(GPa)	(GPa)	(GPa)
0	44.93	2150.3	0.003	13.6	23.5	35.5
25	40.10	2482.0	0.115	12.8	21.9	34.2
50	31.57	3095.0	0.267	9.7	12.4	31.5
75	19.67	4696.7	0.502	4.4	4.6	26.9

Note. f_cm is the peak stress, ε_cm is the strain at peak stress, E₀ is the initial tangential elastic modulus, E_max is the maximum tangential elastic modulus, and E_c is the elastic modulus estimated by the FIP Model Code (2010) in dry state.