𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thermodynamic investigation of the CaOAl2O3CaCO3H2O closed system at 25°C and the influence of Na2O

✍ Scribed by D. Damidot; S. Stronach; A. Kindness; M. Atkins; F.P. Glasser

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
573 KB
Volume
24
Category
Article
ISSN
0008-8846

No coin nor oath required. For personal study only.

✦ Synopsis

The solubilities of calcium hemicarboaluminate, calcium monocarboaluminate and calcium tricarboaluminate have been determined and the equilibrium phase diagram for the CaO-A1203-CaCO3-H20 closed system at 25°C has been calculated. Six isothermally invariant points have been located involving six stable hydrates:

CH, C3AH6, AH3, calcium hemicarboaluminate, calcium monocarboaluminate and calcite. Calcium tricarboaluminate, the carbonate analogue of ettringite, does not appear to be stable at 25°C 563 564 D. Damidot Vol. 24, No. 3 * Because of the isothermal and isobaric restrictions, the calculated points are invariant.

📜 SIMILAR VOLUMES

Thermodynamic investigation of the CaOA
Thermodynamic investigation of the CaOAl2O3CaSO4H2O system at 25°C and the influence of Na2O
✍ D. Damidot; F.P. Glasser 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 1023 KB

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

Thermodynamic investigation of the CaOA
Thermodynamic investigation of the CaOAl2O3CaSO4K2OH2O system at 25°C
✍ D. Damidot; F.P. Glasser 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 479 KB

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

Thermodynamic investigation of the CaOA
Thermodynamic investigation of the CaOAl2O3CaSO4H2O system at 50°C and 85°C
✍ D. Damidot; F.P. Glasser 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 670 KB

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

Tobermorite formation in the system CaO,
Tobermorite formation in the system CaO, C3SSiO2Al2O3NaOHH2O under hydrothermal conditions
✍ R. Gabrovšek; B. Kurbus; D. Mueller; W. Wieker 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 368 KB

## 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