组号

W/B

f_ck/MPa

表观密度/kg/m³

3 d

7 d

14 d

28 d

S

0.36

45.3

52.2

56.2

59.5

2412

A

0.36

46.9

54.2

58.5

63.5

2389

B

0.36

39.2

46.3

51.8

53.9

2348

C

0.36

34.7

40.2

44.6

48.8

2222