The individual subsystems of the basic five component oxide system CaO-SiO2-AI203-Fe203-SO 3 are analysed for their subsolidus phase relationship. The study is confined to the portion of the system in which C2S, the key mineralogical component of belite clinker is present. As a result eighteen equil
Phase relations in the subsystem C4A3SCSH2CHH2O of the system CaOAl2O3CSH2O referred to hydration of sulphoaluminate cement
✍ Scribed by I. Kaprálik; F. Hanic
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 842 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0008-8846
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📜 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
## Tobermorite formation was studied in the system C; C3S-S-A-N-H in suspension at 180°C. Tobermorites forw~d were ~vestigated by the molybdate method and by ='AI and ~Si MAS NMR with a purpose to evaluate the influence of aluminum and sodium ions on the changes of secondary arrangements of basic
Hydration and hydraulic properties of the quaternary phase Q = C20A13M~S 3 were investigated. The phase is located in the subsystem C2S-CA-C~AT-M~) ih th~ z-one of the variable mineral composition of high alumina cern~nts (HACk. Relations between the composition of the Q phase and the phase composit
The CaO-rich portions of the systems CaO-A~203-SiO2-K2SO,, CaO-AC203-K2SO,-CaSO,, CaO-A~203-SiO2-K2SO,-CaSO, and CaO-A~203-Fe203-CaSO,-K2SO, have been studied experimentally. Schemes are presented showing phase assemblages compatible at subsolidus temperatures. Melting commences at about 825°C in as
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