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Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances
Ladle furnace slag (LFS) can undergo hydration and carbonation reactions as cement. This article explores the effect of LFS hydration and carbonation reactions on cementitious substances at different temperatures and different LFS particle sizes, determining the effect of these varying conditions on...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9411115/ https://www.ncbi.nlm.nih.gov/pubmed/36008467 http://dx.doi.org/10.1038/s41598-022-18215-7 |
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author | Yi, Yuanrong Ma, Wenqing Sidike, Ainiwaer Ma, Zhongle Fang, Minghang Lin, Yue Bai, Shuqi Chen, Yinguang |
author_facet | Yi, Yuanrong Ma, Wenqing Sidike, Ainiwaer Ma, Zhongle Fang, Minghang Lin, Yue Bai, Shuqi Chen, Yinguang |
author_sort | Yi, Yuanrong |
collection | PubMed |
description | Ladle furnace slag (LFS) can undergo hydration and carbonation reactions as cement. This article explores the effect of LFS hydration and carbonation reactions on cementitious substances at different temperatures and different LFS particle sizes, determining the effect of these varying conditions on the microstructure and formation mechanism of cementitious substances. The results show that in the early stages, C(2)S and C(3)S undergo hydration to generate C–S–H gel, which then undergoes decalcification and condensation to generate CaCO(3) and Ca-deficient C–S–H gel; the hydration reaction and carbonation reaction promote and influence each other. The increase in temperature was found to hinder the formation of CaCO(3) from Ca(2+) and CO(3)(2−), thus reducing the efficiency of hydration carbonation. The increase in particle size was not conducive to the leaching of C(2)S and C(3)S to the surface of the reaction phase, which in turn reduced the degree of decalcification and polymerization of the C–S–H gel in the carbonation phase. It was concluded that the optimum LFS hydration and carbonation reactions were achieved at 20 °C and with a LFS particle sizes < 38 μm. |
format | Online Article Text |
id | pubmed-9411115 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-94111152022-08-27 Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances Yi, Yuanrong Ma, Wenqing Sidike, Ainiwaer Ma, Zhongle Fang, Minghang Lin, Yue Bai, Shuqi Chen, Yinguang Sci Rep Article Ladle furnace slag (LFS) can undergo hydration and carbonation reactions as cement. This article explores the effect of LFS hydration and carbonation reactions on cementitious substances at different temperatures and different LFS particle sizes, determining the effect of these varying conditions on the microstructure and formation mechanism of cementitious substances. The results show that in the early stages, C(2)S and C(3)S undergo hydration to generate C–S–H gel, which then undergoes decalcification and condensation to generate CaCO(3) and Ca-deficient C–S–H gel; the hydration reaction and carbonation reaction promote and influence each other. The increase in temperature was found to hinder the formation of CaCO(3) from Ca(2+) and CO(3)(2−), thus reducing the efficiency of hydration carbonation. The increase in particle size was not conducive to the leaching of C(2)S and C(3)S to the surface of the reaction phase, which in turn reduced the degree of decalcification and polymerization of the C–S–H gel in the carbonation phase. It was concluded that the optimum LFS hydration and carbonation reactions were achieved at 20 °C and with a LFS particle sizes < 38 μm. Nature Publishing Group UK 2022-08-25 /pmc/articles/PMC9411115/ /pubmed/36008467 http://dx.doi.org/10.1038/s41598-022-18215-7 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Yi, Yuanrong Ma, Wenqing Sidike, Ainiwaer Ma, Zhongle Fang, Minghang Lin, Yue Bai, Shuqi Chen, Yinguang Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title | Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title_full | Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title_fullStr | Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title_full_unstemmed | Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title_short | Synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
title_sort | synergistic effect of hydration and carbonation of ladle furnace aslag on cementitious substances |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9411115/ https://www.ncbi.nlm.nih.gov/pubmed/36008467 http://dx.doi.org/10.1038/s41598-022-18215-7 |
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