Enthalpy of formation of ye’elimite and ternesite

Enthalpy of formation of ye’elimite and ternesite

Calcium sulfoaluminate clinkers containing ye’elimite (Ca 4 Al 6 O 12 (SO 4 )) and ternesite (Ca 5 (SiO 4 ) 2 SO 4 ) are being widely investigated as components of calcium sulfoaluminate cement clinkers. These may become low energy replacements for Portland cement. Conditional thermodynamic data for...

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Veröffentlicht in:Journal of thermal analysis and calorimetry 2018-03, Vol.131 (3), p.2345-2359
Hauptverfasser: Skalamprinos, Solon, Galan, Isabel, Hanein, Theodore, Glasser, Fredrik
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Analytical Chemistry
Calcium
Cement
Chemistry
Chemistry and Materials Science
Diffraction
Enthalpy
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
Portland cements
Thermodynamics
Thermogravimetric analysis
X ray powder diffraction
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Beschreibung
Zusammenfassung:Calcium sulfoaluminate clinkers containing ye’elimite (Ca 4 Al 6 O 12 (SO 4 )) and ternesite (Ca 5 (SiO 4 ) 2 SO 4 ) are being widely investigated as components of calcium sulfoaluminate cement clinkers. These may become low energy replacements for Portland cement. Conditional thermodynamic data for ye’elimite and ternesite (enthalpy of formation) have been determined experimentally using a combination of techniques: isothermal conduction calorimetry, X-ray powder diffraction and thermogravimetric analysis. The enthalpies of formation of ye’elimite and ternesite at 25 °C were determined to be − 8523 and − 5993 kJ mol −1 , respectively.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-017-6751-0