Research Article
A Study on Optimum Mixture Ratio of Reactive Powder Concrete
Table 1
Chemical composition of various SF.
| Item | SF85 | SF88 | SF90 | SF93 | SF97 |
| SiO2 (%) | 86.4 | 89.02 | 92.09 | 94.8 | 97.77 | K2O (%) | 1.34 | 1.32 | 1.12 | 0.63 | 0.26 | Na2O (%) | 0.52 | 0.52 | 0.42 | 0.35 | 0.29 | Loss on ignition under 750°C (%) | 1.87 | 1.8 | 1.6 | 0.9 | 0.8 | Water content (%) | 0.41 | 0.41 | 0.4 | 0.43 | 0.41 | Surface area (m2/g) | 18 | 18 | 19 | 19 | 19 | Volume density (kg/m3) | 200∼350 (origin) | 600∼700 (condense) |
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