Enthalpy of formation of ye’elimite and ternesite

Abstract

Calcium sulfoaluminate clinkers containing ye’elimite (Ca4Al6O12(SO4)) and ternesite (Ca5(SiO4)2SO4) 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.

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Authors/Creators:	Skalamprinos, S. Galan, I. Hanein, T. Glasser, F.
Copyright, Publisher and Additional Information:	© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Keywords:	Ye’elimite; Ternesite; Enthalpy of formation; Calorimetry; Thermogravimetric analysis; Calcium sulfoaluminate cement
Dates:	Accepted: 26 September 2017 Published (online): 17 October 2017 Published: March 2018
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield)
Depositing User:	Symplectic Sheffield
Date Deposited:	02 Mar 2018 12:26
Last Modified:	17 Nov 2023 16:55
Status:	Published
Publisher:	Springer
Refereed:	Yes
Identification Number:	https://doi.org/10.1007/s10973-017-6751-0

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Enthalpy of formation of ye’elimite and ternesite

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