Corrosion behavior of carbon steel in chloride-contaminated ultra-high-performance cement pastes

Haibing Zheng; Jianxin Lu; Peiliang Shen; Li Sun; Chi Sun Poon; Weihua Li

doi:10.1016/j.cemconcomp.2022.104443

Corrosion behavior of carbon steel in chloride-contaminated ultra-high-performance cement pastes

Haibing Zheng, Jianxin Lu, Peiliang Shen, Li Sun, Chi Sun Poon, Weihua Li

Research output: Journal article publication › Journal article › Academic research › peer-review

26 Citations (Scopus)

Abstract

In this work, the corrosion behavior of carbon steels embedded in normal-performance cement pastes (NPCP) and ultra-high-performance cement pastes (UHPC) contaminated with seawater were studied. The results showed that the corrosion of the carbon steel propagated in NPCP due to the relatively low resistivity of the matrix. The initial high Cl⁻/OH⁻ ratio induced the corrosion of steel after the cast of the seawater mixed UHPC, however it was suppressed immediately within the first few days due to the significant reduction of water, which inhibited the anodic reaction of the corrosion process. The insufficient oxygen supply did not dominate the corrosion process, since the phase conversion of the corrosion products could also sustain the cathodic reaction.

Original language	English
Article number	104443
Journal	Cement and Concrete Composites
Volume	128
DOIs	https://doi.org/10.1016/j.cemconcomp.2022.104443
Publication status	Published - Apr 2022

Keywords

Carbon steel
Chloride ion
Corrosion
Seawater
Ultra-high-performance concrete

ASJC Scopus subject areas

Building and Construction
General Materials Science

More information

10.1016/j.cemconcomp.2022.104443

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title = "Corrosion behavior of carbon steel in chloride-contaminated ultra-high-performance cement pastes",

abstract = "In this work, the corrosion behavior of carbon steels embedded in normal-performance cement pastes (NPCP) and ultra-high-performance cement pastes (UHPC) contaminated with seawater were studied. The results showed that the corrosion of the carbon steel propagated in NPCP due to the relatively low resistivity of the matrix. The initial high Cl−/OH− ratio induced the corrosion of steel after the cast of the seawater mixed UHPC, however it was suppressed immediately within the first few days due to the significant reduction of water, which inhibited the anodic reaction of the corrosion process. The insufficient oxygen supply did not dominate the corrosion process, since the phase conversion of the corrosion products could also sustain the cathodic reaction.",

keywords = "Carbon steel, Chloride ion, Corrosion, Seawater, Ultra-high-performance concrete",

author = "Haibing Zheng and Jianxin Lu and Peiliang Shen and Li Sun and Poon, {Chi Sun} and Weihua Li",

note = "Funding Information: The work described in this paper was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. T22-502/18-R ). The authors gratefully acknowledge the financial support of Hong Kong Branch of the National Engineering Research Center for Steel Construction . The last author also acknowledge the support of National Natural Science Foundation of China ( 51879292 ) and the Guangdong International Science and Technology Cooperation Program ( 2019A050510020 ). Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

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doi = "10.1016/j.cemconcomp.2022.104443",

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AU - Zheng, Haibing

AU - Lu, Jianxin

AU - Shen, Peiliang

AU - Sun, Li

AU - Poon, Chi Sun

AU - Li, Weihua

N1 - Funding Information: The work described in this paper was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region (Project No. T22-502/18-R ). The authors gratefully acknowledge the financial support of Hong Kong Branch of the National Engineering Research Center for Steel Construction . The last author also acknowledge the support of National Natural Science Foundation of China ( 51879292 ) and the Guangdong International Science and Technology Cooperation Program ( 2019A050510020 ). Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022/4

Y1 - 2022/4

N2 - In this work, the corrosion behavior of carbon steels embedded in normal-performance cement pastes (NPCP) and ultra-high-performance cement pastes (UHPC) contaminated with seawater were studied. The results showed that the corrosion of the carbon steel propagated in NPCP due to the relatively low resistivity of the matrix. The initial high Cl−/OH− ratio induced the corrosion of steel after the cast of the seawater mixed UHPC, however it was suppressed immediately within the first few days due to the significant reduction of water, which inhibited the anodic reaction of the corrosion process. The insufficient oxygen supply did not dominate the corrosion process, since the phase conversion of the corrosion products could also sustain the cathodic reaction.

AB - In this work, the corrosion behavior of carbon steels embedded in normal-performance cement pastes (NPCP) and ultra-high-performance cement pastes (UHPC) contaminated with seawater were studied. The results showed that the corrosion of the carbon steel propagated in NPCP due to the relatively low resistivity of the matrix. The initial high Cl−/OH− ratio induced the corrosion of steel after the cast of the seawater mixed UHPC, however it was suppressed immediately within the first few days due to the significant reduction of water, which inhibited the anodic reaction of the corrosion process. The insufficient oxygen supply did not dominate the corrosion process, since the phase conversion of the corrosion products could also sustain the cathodic reaction.

KW - Carbon steel

KW - Chloride ion

KW - Corrosion

KW - Seawater

KW - Ultra-high-performance concrete

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Corrosion behavior of carbon steel in chloride-contaminated ultra-high-performance cement pastes

Abstract

Keywords

ASJC Scopus subject areas

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