Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System

Table 10

Compressive strength of concrete after different freeze-thaw cycles.

Group	0	50	100	150	200	250	300	350
A1	35.5	32.3	26.5	24.8
A2	36.3	34.8	31.1	28.1
A3	34.8	32.7	31.5	29.6	27.4
A4	32.9	30.5	29.6	27.5	24.1
A5	28.6	24.3	20.9
B1	71.4	68.8	64.1	59.3	54.1	50.8
B2	64.4	61.5	59.3	57.5	55.9	54.3	51.5
B3	64.1	63.9	62.5	61.1	59.3	56.5	55.0	51.9
B4	53.8	51.5	49.1	47.6	44.4	42.9	41.2
B5	47.3	43.4	37.6	33.1	29.5