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Title:Phase development and hydration kinetics of belite-calcium sulfoaluminate cements at different curing temperatures
Authors:ID Mrak, Maruša (Author)
ID Daneu, Nina (Author)
ID Dolenec, Sabina (Author)
Files:URL URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0272884220313146?via%3Dihub
 
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MD5: 9DD4FC8E3C1151D775C89E6885596BE2
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:The influence of different curing temperatures on the hydration of belite-calcium sulfoaluminate cement was investigated at 20, 40 and 60 °C. The hydration kinetics and the hydrated phase assemblages were studied by isothermal calorimetry, X-ray powder diffraction, differential thermal analysis and thermogravimetric analysis, as well as field emission scanning electron microscopy. The compressive strength development of the cement pastes was also determined. Results showed that, at early ages, hydration was faster and early compressive strength was higher at elevated temperatures than at ambient temperature. On the other hand, at late ages in cement pastes cured at 60 °C, the amount of ettringite decreased, leading to lower compressive strength, indicating that the degree of hydration was lower at higher temperatures. Moreover, at elevated temperatures prismatic ettringite crystals became smaller due to faster hydration. Other hydration products present were aluminium hydroxide, which is formed together with ettringite from the hydration of calcium sulfoaluminate and gypsum, and C–S–H which precipitates as a main hydration product of belite. Belite hydrated in a lesser amount, especially at 60 °C, when the lowest amount of C–S–H was observed.
Keywords:hydration, cement, temperature, belite, calcium sulfoaluminate, open access, hidratacija, cement, temperatura, belit, kalcijev sulfoaluminat
Publication status:Published
Publication version:Version of Record
Publication date:05.05.2020
Publisher:Ceramurgica s.p.a.
Year of publishing:2020
Number of pages:str. 29421-29428
Numbering:Vol. 46, iss. 18, part B
PID:20.500.12556/DiRROS-16455 New window
UDC:620.1/.2
ISSN on article:0272-8842
DOI:10.1016/j.ceramint.2020.05.029 New window
COBISS.SI-ID:15041027 New window
Copyright:© 2020 The Authors. Published by Elsevier Ltd.
Note:E-članek objavljen: 15 December 2020;
Publication date in DiRROS:04.08.2023
Views:841
Downloads:577
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MRAK, Maruša, DANEU, Nina and DOLENEC, Sabina, 2020, Phase development and hydration kinetics of belite-calcium sulfoaluminate cements at different curing temperatures. Ceramics international [online]. 2020. Vol. 46, no. 18, part B, p. 29421–29428. [Accessed 15 March 2025]. DOI 10.1016/j.ceramint.2020.05.029. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=16455
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Record is a part of a journal

Title:Ceramics international
Shortened title:Ceram. int.
Publisher:Ceramurgica s.p.a.
ISSN:0272-8842
COBISS.SI-ID:5822215 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:1000-18-1502
Name:Young researcher programme

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:06.05.2020
Applies to:Text and Data Mining valid from 2020-12-01 Version of Record valid from 2020-05-06

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