Full Text

Turn on search term navigation

© 2024 by the authors. 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/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

The corrosion of steel rebars is a prevalent factor leading to the diminished durability of reinforced concrete structures, posing a significant challenge to the safety of structural engineering. To tackle this issue, extensive research has been conducted, yielding a variety of theoretical insights and remedial measures. This review paper offers an exhaustive analysis of the passivation processes and corrosion mechanisms affecting steel rebars in reinforced concrete. It identifies key factors such as chloride ion penetration and concrete carbonization that primarily influence rebar corrosion. Furthermore, this paper discusses a suite of strategies designed to enhance the longevity of reinforced concrete structures. These include improving the concrete protective layer’s quality and bolstering the rebars’ corrosion resistance. As corrosion testing is essential for evaluating steel rebars’ resistance, this paper also details natural and accelerated corrosion testing methods applicable to rebars in concrete environments. Additionally, this paper deeply presents an exploration of the use of X-ray computed tomography (X-CT) technology for analyzing the corrosion byproducts and the interface characteristics of steel bars. Recognizing the close relationship between steel bar corrosion research and microstructural properties, this paper highlights the pivotal role of X-CT in advancing this field of study. In conclusion, this paper synthesizes the current state of knowledge and provides a prospective outlook on future research directions on the corrosion of steel rebars within reinforced concrete structures.

Details

Title
Research Progress in Corrosion Behavior and Anti-Corrosion Methods of Steel Rebar in Concrete
Author
Wang, Qiuyue 1 ; Wang, Zilong 2 ; Li, Chengtao 3 ; Qiao, Xinglong 2 ; Guan, Hao 2 ; Zhou, Zhou 2 ; Song, Dan 2 

 College of Materials Science and Engineering, Hohai University, Nanjing 211100, China; wangqiuyue@jmi.edu.cn (Q.W.); 2117020308@hhu.edu.cn (Z.W.); 221608010037@hhu.edu.cn (X.Q.); 211608010014@hhu.edu.cn (H.G.); School of Naval Architecture & Intelligent Manufacturing, Jiangsu Maritime Institute, Nanjing 211170, China 
 College of Materials Science and Engineering, Hohai University, Nanjing 211100, China; wangqiuyue@jmi.edu.cn (Q.W.); 2117020308@hhu.edu.cn (Z.W.); 221608010037@hhu.edu.cn (X.Q.); 211608010014@hhu.edu.cn (H.G.) 
 Suzhou Nuclear Power Research Institute Co., Ltd., Suzhou 215004, China; lichengtao@cgnpc.com.cn 
First page
862
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
20754701
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3098152462
Copyright
© 2024 by the authors. 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/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.