Research Article
Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System
Table 9
Residual dynamic elastic modulus of concrete with different freeze-thaw cycles.
| | Cycle index | 50 | 100 | 150 | 200 | 250 | 300 | 350 |
| | A1 | 85.4% | 66.1% | 55.2% | | | | | | A2 | 86.5% | 70.5% | 58.4% | | | | | | A3 | 88.2% | 75.4% | 62.2% | 57.7% | | | | | A4 | 88% | 73.7% | 66.1% | 58.9% | | | | | A5 | 77.2% | 58.0% | | | | | | | B1 | 93.2% | 86.1% | 73.2% | 64.7% | 53.6% | | | | B2 | 94.3% | 87.2% | 76.8% | 69.1% | 63.7% | 55.8% | | | B3 | 96.8% | 90.5% | 82.9% | 72.2% | 67.1% | 64.3% | 57.5% | | B4 | 95.4% | 89.1% | 79.5% | 71.3% | 64.5% | 58.1% | | | B5 | 90.4% | 84.5% | 70.3% | 59.3% | | | |
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