Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions

This research aimed to investigate the effectiveness of Bacillus subtilis (B. subtilis) in self-healing cracks in concrete and enhancing concrete strength through microbial induced calcium carbonate precipitation (MICP). The study evaluated the ability of the mortar to cover cracks within 28 days, t...

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Autores principales: Yamasamit, Nattapong, Sangkeaw, Panisa, Jitchaijaroen, Wittaya, Thongchom, Chanachai, Keawsawasvong, Suraparb, Kamchoom, Viroon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10185526/
https://www.ncbi.nlm.nih.gov/pubmed/37188710
http://dx.doi.org/10.1038/s41598-023-34837-x
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author Yamasamit, Nattapong
Sangkeaw, Panisa
Jitchaijaroen, Wittaya
Thongchom, Chanachai
Keawsawasvong, Suraparb
Kamchoom, Viroon
author_facet Yamasamit, Nattapong
Sangkeaw, Panisa
Jitchaijaroen, Wittaya
Thongchom, Chanachai
Keawsawasvong, Suraparb
Kamchoom, Viroon
author_sort Yamasamit, Nattapong
collection PubMed
description This research aimed to investigate the effectiveness of Bacillus subtilis (B. subtilis) in self-healing cracks in concrete and enhancing concrete strength through microbial induced calcium carbonate precipitation (MICP). The study evaluated the ability of the mortar to cover cracks within 28 days, taking into account the width of the crack, and observed the recovery of strength after self-healing. The use of microencapsulated endospores of B. subtilis was also examined for its impact on the strength of concrete. The compressive, splitting tensile, and flexural strengths of normal mortar were compared to those of biological mortar, and it was found that biological mortar had a higher strength capacity. Microstructure analysis using SEM and EDS showed that bacterial growth increased calcium production, contributing to the improved mechanical properties of the bio-mortar.
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spelling pubmed-101855262023-05-17 Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions Yamasamit, Nattapong Sangkeaw, Panisa Jitchaijaroen, Wittaya Thongchom, Chanachai Keawsawasvong, Suraparb Kamchoom, Viroon Sci Rep Article This research aimed to investigate the effectiveness of Bacillus subtilis (B. subtilis) in self-healing cracks in concrete and enhancing concrete strength through microbial induced calcium carbonate precipitation (MICP). The study evaluated the ability of the mortar to cover cracks within 28 days, taking into account the width of the crack, and observed the recovery of strength after self-healing. The use of microencapsulated endospores of B. subtilis was also examined for its impact on the strength of concrete. The compressive, splitting tensile, and flexural strengths of normal mortar were compared to those of biological mortar, and it was found that biological mortar had a higher strength capacity. Microstructure analysis using SEM and EDS showed that bacterial growth increased calcium production, contributing to the improved mechanical properties of the bio-mortar. Nature Publishing Group UK 2023-05-15 /pmc/articles/PMC10185526/ /pubmed/37188710 http://dx.doi.org/10.1038/s41598-023-34837-x Text en © The Author(s) 2023 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
Yamasamit, Nattapong
Sangkeaw, Panisa
Jitchaijaroen, Wittaya
Thongchom, Chanachai
Keawsawasvong, Suraparb
Kamchoom, Viroon
Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title_full Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title_fullStr Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title_full_unstemmed Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title_short Effect of Bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
title_sort effect of bacillus subtilis on mechanical and self-healing properties in mortar with different crack widths and curing conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10185526/
https://www.ncbi.nlm.nih.gov/pubmed/37188710
http://dx.doi.org/10.1038/s41598-023-34837-x
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