Study on Strength and Ultrasonic Velocity of Air-Entrained Concrete and Plain Concrete in Cold Environment

Table 2

Compressive strength of A-E-C after different cycles of F-T (MPa).

Number of F-T cycles	0	50	100	150	200	300	350	400
Cubic compressive strength	34.20	33.40	31.67	27.60	26.38	21.10	19.13	16.22
Compressive strength	26.30	25.90	25.90	24.80	23.33	22.63	17.50	14.25