Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete

Alkali-activated slag concrete (ASC) is regarded as one of the most promising sustainable construction materials for replacing ordinary Portland cement concrete (OPC) due to its comparable strength and outstanding durability in challenging environments. In this study, the corrosion of steel bars emb...

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Detalles Bibliográficos
Autores principales: Cui, Yifei, Qu, Shihao, Gao, Kaikai, Tekle, Biruk Hailu, Bao, Jiuwen, Zhang, Peng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054253/
https://www.ncbi.nlm.nih.gov/pubmed/36984140
http://dx.doi.org/10.3390/ma16062262
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author Cui, Yifei
Qu, Shihao
Gao, Kaikai
Tekle, Biruk Hailu
Bao, Jiuwen
Zhang, Peng
author_facet Cui, Yifei
Qu, Shihao
Gao, Kaikai
Tekle, Biruk Hailu
Bao, Jiuwen
Zhang, Peng
author_sort Cui, Yifei
collection PubMed
description Alkali-activated slag concrete (ASC) is regarded as one of the most promising sustainable construction materials for replacing ordinary Portland cement concrete (OPC) due to its comparable strength and outstanding durability in challenging environments. In this study, the corrosion of steel bars embedded in ASC and OPC was studied by means of an electrically accelerated corrosion test of steel bars in concrete. Meanwhile, the bond performance of the corroded steel bars embedded in ASC was tested and compared with corresponding OPC groups. The results showed that ASC and OPC behaved differently in terms of bond deterioration. The high chemical resistance of ASC decreased the corrosion of steel bars and, thus, increased the residue bond strength and the bond stiffness.
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spelling pubmed-100542532023-03-30 Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete Cui, Yifei Qu, Shihao Gao, Kaikai Tekle, Biruk Hailu Bao, Jiuwen Zhang, Peng Materials (Basel) Article Alkali-activated slag concrete (ASC) is regarded as one of the most promising sustainable construction materials for replacing ordinary Portland cement concrete (OPC) due to its comparable strength and outstanding durability in challenging environments. In this study, the corrosion of steel bars embedded in ASC and OPC was studied by means of an electrically accelerated corrosion test of steel bars in concrete. Meanwhile, the bond performance of the corroded steel bars embedded in ASC was tested and compared with corresponding OPC groups. The results showed that ASC and OPC behaved differently in terms of bond deterioration. The high chemical resistance of ASC decreased the corrosion of steel bars and, thus, increased the residue bond strength and the bond stiffness. MDPI 2023-03-11 /pmc/articles/PMC10054253/ /pubmed/36984140 http://dx.doi.org/10.3390/ma16062262 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cui, Yifei
Qu, Shihao
Gao, Kaikai
Tekle, Biruk Hailu
Bao, Jiuwen
Zhang, Peng
Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title_full Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title_fullStr Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title_full_unstemmed Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title_short Effect of Corrosion on the Bond Behavior of Steel-Reinforced, Alkali-Activated Slag Concrete
title_sort effect of corrosion on the bond behavior of steel-reinforced, alkali-activated slag concrete
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10054253/
https://www.ncbi.nlm.nih.gov/pubmed/36984140
http://dx.doi.org/10.3390/ma16062262
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