Effect of concentration difference of chloride ions on the corrosion of steel bar

DOI

10.2991/iceesd-18.2018.160How to use a DOI?

Keywords

Reinforced concrete, Macro cell corrosion, Chlorine ion concentration difference, Area ratio of cathode and anode

Abstract

Corroded area rate, weight loss rate and the macro cell corrosion of rebars in concrete subjected to concentration difference of chloride ion was investigated. In order to evaluate the corrosion mechanism of rebars, the corrosion behaviour of rebars in concrete under different chloride concentration difference were contrasted with that of the concrete contaminated with uniform chlorine ion concentration. Results indicated that compared with the concrete contaminated with uniform chlorine ion concentration, the rebars corroded area are higher in concrete under different chloride ion concentration difference, and the rebars corroded area are also higher in concrete in large cathode small anode contrasted with that of the condition in large cathode small anode. Furthermore, the both of rebars corroded area is more serious than uniform chlorine ion concentration.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Haibin Shu
AU  - Yilin Song
AU  - Junzhe Liu
PY  - 2018/05
DA  - 2018/05
TI  - Effect of concentration difference of chloride ions on the corrosion of steel bar
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 884
EP  - 887
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.160
DO  - 10.2991/iceesd-18.2018.160
ID  - Shu2018/05
ER  -