Research Article
Simulated Experiment Study of Factors Influencing the Hydration Activity of f-CaO in Basic Oxygen Furnace Slag
Table 3
Volume expansion of the solid phases after the hydration of different phases in tricomponent f-CaO of CaO·aFeO1.5·bMnO2 system.
| | Equations of reaction | Molecular mass | Specific gravity (g/cm3) | Solid phase volume (cm3) | Volume expansion rate (%) | | Before reaction | After reaction |
| | CaO + H2O → Ca(OH)2 | CaO: 56.08 | Ca(OH)2: 74.09 | CaO: 3.34 | Ca(OH)2: 2.23 | 16.79 | 33.22 | 97.88 |
| | Ca2Fe2O5 + 2H2O → 2Ca(OH)2 + Fe2O3 | Ca2Fe2O5: 271.83 | Ca(OH)2: 74.09 | Fe2O3: 159.68 | Ca2Fe2O5: 4.03 | Ca(OH)2: 2.23 | Fe2O3: 5.27 | 67.45 | 96.75 | 43.44 |
| | 4Ca3Fe1.5Mn1.5O8 + 12H2O → 12Ca(OH)2 + 6FeMnO3 + O2 | Ca3Fe1.5Mn1.5O8: 414.4 | Ca(OH)2: 74.09 | FeMnO3: 158.78 | Ca3Fe1.5Mn1.5O8: 4.26 | Ca(OH)2: 2.23 | FeMnO3: 4.94 | 389.11 | 591.54 | 52.02 |
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