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Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review

Corrosion of the reinforcement affects more than the cross-sectional area of the rebar. The volume of steel also increases due to expansive corrosion products, leading to the cracking, delamination, and spalling of concrete. As a result, the bond capacity between concrete and rebar is affected. Rese...

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Detalles Bibliográficos
Autores principales: Syll, Amadou Sakhir, Kanakubo, Toshiyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9571078/
https://www.ncbi.nlm.nih.gov/pubmed/36234354
http://dx.doi.org/10.3390/ma15197016
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author Syll, Amadou Sakhir
Kanakubo, Toshiyuki
author_facet Syll, Amadou Sakhir
Kanakubo, Toshiyuki
author_sort Syll, Amadou Sakhir
collection PubMed
description Corrosion of the reinforcement affects more than the cross-sectional area of the rebar. The volume of steel also increases due to expansive corrosion products, leading to the cracking, delamination, and spalling of concrete. As a result, the bond capacity between concrete and rebar is affected. Researchers have extensively examined the impact of corrosion on the bond strength between concrete and rebar to propose empirical, theoretical, or numerical predictive models. Therefore, research programs on this topic have increased rapidly in recent years. This article presents a systematic literature review to explore experimental methods, outcomes, and trends on this topic. The Web of Science search collected 84 relevant research articles through a rigorous selection. Key factors that affect bond strength degradation, including concrete cover, concrete strength, and stirrups, have been documented. However, a general model is still unavailable due to discrepancies caused by differences in testing methods to evaluate the effect of corrosion on bond strength. Furthermore, researchers attempted to clarify the degradation mechanism of bond strength affected by corrosion. As a result, new alternatives have been proposed to build a practical model to assess the bond strength deterioration of corroded structures.
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spelling pubmed-95710782022-10-17 Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review Syll, Amadou Sakhir Kanakubo, Toshiyuki Materials (Basel) Review Corrosion of the reinforcement affects more than the cross-sectional area of the rebar. The volume of steel also increases due to expansive corrosion products, leading to the cracking, delamination, and spalling of concrete. As a result, the bond capacity between concrete and rebar is affected. Researchers have extensively examined the impact of corrosion on the bond strength between concrete and rebar to propose empirical, theoretical, or numerical predictive models. Therefore, research programs on this topic have increased rapidly in recent years. This article presents a systematic literature review to explore experimental methods, outcomes, and trends on this topic. The Web of Science search collected 84 relevant research articles through a rigorous selection. Key factors that affect bond strength degradation, including concrete cover, concrete strength, and stirrups, have been documented. However, a general model is still unavailable due to discrepancies caused by differences in testing methods to evaluate the effect of corrosion on bond strength. Furthermore, researchers attempted to clarify the degradation mechanism of bond strength affected by corrosion. As a result, new alternatives have been proposed to build a practical model to assess the bond strength deterioration of corroded structures. MDPI 2022-10-10 /pmc/articles/PMC9571078/ /pubmed/36234354 http://dx.doi.org/10.3390/ma15197016 Text en © 2022 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 Review
Syll, Amadou Sakhir
Kanakubo, Toshiyuki
Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title_full Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title_fullStr Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title_full_unstemmed Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title_short Impact of Corrosion on the Bond Strength between Concrete and Rebar: A Systematic Review
title_sort impact of corrosion on the bond strength between concrete and rebar: a systematic review
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9571078/
https://www.ncbi.nlm.nih.gov/pubmed/36234354
http://dx.doi.org/10.3390/ma15197016
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