Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement

This paper presents the results of research into the heat of hydration and activation energy of calcium sulphoaluminate (CSA) cement in terms of the dependence on curing temperature and water/cement ratio. Cement pastes with water/cement ratios in the range of 0.3–0.6 were tested by isothermal calor...

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Autores principales:	Małgorzata Gołaszewska, Barbara Klemczak, Jacek Gołaszewski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	hydration heat isothermal heat flow CSA cement Portland cement apparent activation energy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/36b1f0c42c8f403fbd07d0c9b6b8808b
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spelling	oai:doaj.org-article:36b1f0c42c8f403fbd07d0c9b6b8808b2021-11-25T18:15:39ZThermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement10.3390/ma142270111996-1944https://doaj.org/article/36b1f0c42c8f403fbd07d0c9b6b8808b2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7011https://doaj.org/toc/1996-1944This paper presents the results of research into the heat of hydration and activation energy of calcium sulphoaluminate (CSA) cement in terms of the dependence on curing temperature and water/cement ratio. Cement pastes with water/cement ratios in the range of 0.3–0.6 were tested by isothermal calorimetry at 20 °C, 35 °C and 50 °C, with the evolved hydration heat and its rate monitored for 168 h from mixing water with cement. Reference pastes with ordinary Portland cement (OPC) were also tested in the same range. The apparent activation energy of CSA and OPC was determined based on the results of the measurements. CSA pastes exhibited complex thermal behaviour that differed significantly from the thermal behaviour of ordinary Portland cement. The results show that both the w/c ratio and elevated temperature have a meaningful effect on the heat emission and the hydration process of CSA cement pastes. The determined apparent activation energy of CSA revealed its substantial variability and dependence, both on the w/c ratio and the curing temperature.Małgorzata GołaszewskaBarbara KlemczakJacek GołaszewskiMDPI AGarticlehydration heatisothermal heat flowCSA cementPortland cementapparent activation energyTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7011, p 7011 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydration heat isothermal heat flow CSA cement Portland cement apparent activation energy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	hydration heat isothermal heat flow CSA cement Portland cement apparent activation energy Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Małgorzata Gołaszewska Barbara Klemczak Jacek Gołaszewski Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
description	This paper presents the results of research into the heat of hydration and activation energy of calcium sulphoaluminate (CSA) cement in terms of the dependence on curing temperature and water/cement ratio. Cement pastes with water/cement ratios in the range of 0.3–0.6 were tested by isothermal calorimetry at 20 °C, 35 °C and 50 °C, with the evolved hydration heat and its rate monitored for 168 h from mixing water with cement. Reference pastes with ordinary Portland cement (OPC) were also tested in the same range. The apparent activation energy of CSA and OPC was determined based on the results of the measurements. CSA pastes exhibited complex thermal behaviour that differed significantly from the thermal behaviour of ordinary Portland cement. The results show that both the w/c ratio and elevated temperature have a meaningful effect on the heat emission and the hydration process of CSA cement pastes. The determined apparent activation energy of CSA revealed its substantial variability and dependence, both on the w/c ratio and the curing temperature.
format	article
author	Małgorzata Gołaszewska Barbara Klemczak Jacek Gołaszewski
author_facet	Małgorzata Gołaszewska Barbara Klemczak Jacek Gołaszewski
author_sort	Małgorzata Gołaszewska
title	Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
title_short	Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
title_full	Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
title_fullStr	Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
title_full_unstemmed	Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement
title_sort	thermal properties of calcium sulphoaluminate cement as an alternative to ordinary portland cement
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/36b1f0c42c8f403fbd07d0c9b6b8808b
work_keys_str_mv	AT małgorzatagołaszewska thermalpropertiesofcalciumsulphoaluminatecementasanalternativetoordinaryportlandcement AT barbaraklemczak thermalpropertiesofcalciumsulphoaluminatecementasanalternativetoordinaryportlandcement AT jacekgołaszewski thermalpropertiesofcalciumsulphoaluminatecementasanalternativetoordinaryportlandcement
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Thermal Properties of Calcium Sulphoaluminate Cement as an Alternative to Ordinary Portland Cement

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