Research Article
Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System
Table 11
Porosity of concrete (%).
| | Total porosity | <0.02 μm | 0.02–0.1 μm | 0.1–0.2 μm | >0.2 μm | Before | After | Before | After | Before | After | Before | After | Before | After |
| A1 | 15.47 | 22.40 | 13. 68 | 2.49 | 1.09 | 1.40 | 0.13 | 3.77 | 0.57 | 14.74 | A3 | 16.03 | 22.98 | 15.24 | 4.53 | 0.43 | 1.98 | 0.26 | 2.42 | 0.10 | 14.05 | A5 | 17.83 | 27.08 | 15.11 | 2.85 | 1.11 | 2.70 | 0.39 | 4.42 | 1.22 | 17.11 | B1 | 7.12 | 13.16 | 6.64 | 1.35 | 0.21 | 0.29 | 0.11 | 1.49 | 0.16 | 10.03 | B3 | 7.59 | 11.09 | 6.83 | 1.58 | 0.58 | 0.70 | 0.09 | 0.31 | 0.09 | 8.50 | B5 | 9.61 | 15.63 | 7.90 | 2.11 | 0.54 | 0.89 | 0.26 | 1.28 | 0.91 | 11.35 |
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