Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete

Abstract When operating within the environments rich with sodium chloride, steel bars of reinforced concrete structures are often subject to corrosion caused by surrounding erosive materials, and the associated rust expansion force due to corrosion takes a critical role in determining the durability...

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Autores principales:	Fan-xiu Chen, Yi-chen Zhong, Xin-ya Gao, Zu-quan Jin, En-dong Wang, Fei-peng Zhu, Xin-xing Shao, Xiao-yuan He
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7327f85f03a74e8a9bc7758aa6b88043
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spelling	oai:doaj.org-article:7327f85f03a74e8a9bc7758aa6b880432021-12-02T18:27:50ZNon-uniform model of relationship between surface strain and rust expansion force of reinforced concrete10.1038/s41598-021-88146-22045-2322https://doaj.org/article/7327f85f03a74e8a9bc7758aa6b880432021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-88146-2https://doaj.org/toc/2045-2322Abstract When operating within the environments rich with sodium chloride, steel bars of reinforced concrete structures are often subject to corrosion caused by surrounding erosive materials, and the associated rust expansion force due to corrosion takes a critical role in determining the durability of relevant reinforced concrete structures. By investigating the corrosion course of steel reinforcement with theory of elasticity, a numerical rust expansion model is established for the moment of concrete surface rupture based on non-uniform sin function. Cuboid reinforced concrete specimen with squared cross sections is tested to analyze the rust expansion when concrete cracks due to corrosive forces. The utility of the established expansion model is validated by numerical simulation with Abaqus through the comparison between the associated outcomes. The impacts of steel bar diameter and concrete cover thickness on the magnitude of rust expansion force are discussed.Fan-xiu ChenYi-chen ZhongXin-ya GaoZu-quan JinEn-dong WangFei-peng ZhuXin-xing ShaoXiao-yuan HeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fan-xiu Chen Yi-chen Zhong Xin-ya Gao Zu-quan Jin En-dong Wang Fei-peng Zhu Xin-xing Shao Xiao-yuan He Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
description	Abstract When operating within the environments rich with sodium chloride, steel bars of reinforced concrete structures are often subject to corrosion caused by surrounding erosive materials, and the associated rust expansion force due to corrosion takes a critical role in determining the durability of relevant reinforced concrete structures. By investigating the corrosion course of steel reinforcement with theory of elasticity, a numerical rust expansion model is established for the moment of concrete surface rupture based on non-uniform sin function. Cuboid reinforced concrete specimen with squared cross sections is tested to analyze the rust expansion when concrete cracks due to corrosive forces. The utility of the established expansion model is validated by numerical simulation with Abaqus through the comparison between the associated outcomes. The impacts of steel bar diameter and concrete cover thickness on the magnitude of rust expansion force are discussed.
format	article
author	Fan-xiu Chen Yi-chen Zhong Xin-ya Gao Zu-quan Jin En-dong Wang Fei-peng Zhu Xin-xing Shao Xiao-yuan He
author_facet	Fan-xiu Chen Yi-chen Zhong Xin-ya Gao Zu-quan Jin En-dong Wang Fei-peng Zhu Xin-xing Shao Xiao-yuan He
author_sort	Fan-xiu Chen
title	Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
title_short	Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
title_full	Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
title_fullStr	Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
title_full_unstemmed	Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
title_sort	non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7327f85f03a74e8a9bc7758aa6b88043
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_version_	1718377984693370880

Non-uniform model of relationship between surface strain and rust expansion force of reinforced concrete

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