Research Article
Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System
Table 4
Compressive strength of C30 and C50 concrete (MPa).
| | | 3 d | 7 d | 28 d | | 3 d | 7 d | 28 d |
| | A1 | 14.4 | 28.7 | 35.5 | B1 | 24.9 | 50.2 | 71.4 | | A2 | 11.3 | 26.8 | 36.3 | B2 | 22.1 | 48.7 | 64.4 | | A3 | 9.6 | 23.9 | 34.8 | B3 | 19.8 | 44.9 | 64.1 | | A4 | 6.9 | 19.1 | 32.9 | B4 | 15.7 | 34.5 | 53.8 | | A5 | 4.2 | 17.4 | 28.6 | B5 | 8.1 | 29.9 | 47.3 |
|
|
