The CaO - Al2O3 - CaSO4 - H2O system equilibrium states
✍ Scribed by I. Nerád; S. Šaušová; L. Števula
- Book ID
- 107728679
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 531 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0008-8846
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
An equilibrium phase diagram has been calculated for the CaO-A1203-CaSO4-K20-H20 system at 25°C for several KOH concentrations. These KOH concentrations were chosen to relate to cement pore fluid compositions and published experimental data. In addition to the hydrates found in the CaO-A1203-CaSO4-H
Mixtures of CaO, amorphous SiO2 and kaolinite in the presence or absence of SO~-ions (added as CaSO4.2H20) were treated in suspension under hydrothermal conditions at temperatures of 80-200 ~ Kaolinite was added to replace 3 and 10% of the total weight of the dry mix with the overall CaO/SiO2 mole r
Through the carbonization of 3CaO.A1203.6H20, the phase 3CaO.Al203.11H20 is formed first, nevertheless in the following period it decomposes into AI(OH) 3 and vaterite, which later is transformed into calcite. The degree of decomposition of C3AH 6 increases with time of reaction, concentration of CO
The CaO-A1203-CaSO4-H20 system has been investigated at 50°C and 85°C, by calculations of the equilibrium solubility surfaces of AH3, C3AH6, CH, ettringite, monosulphoaluminate and gypsum. The results indicate that monosulphoaluminate becomes a stable phase at elevated temperature. Since ettringite
The CaO-AI203-CaSO4-H20 system at 25°C has been investigatedby calcula~ons on the equilibrium solubility surfaces of AH 3, C3AH6, CH, C6AS3H x, C4ASH x and gypsum. The results are in good agreement with the previous experimental data and make it possible to define the hydrates in equilibrium with aq