Effect of sodium molybdate and sodium tungstate in concrete rebar corrosion
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 13 March 2019
Issue publication date: 25 April 2019
Abstract
Purpose
This paper aims to identify an inhibitor to protect rebar corrosion in concrete.
Design/methodology/approach
The authors use the simple method of polarization and calculate the change in open-circuit potential and corrosion current density.
Findings
Sodium molybdate is an efficient inhibitor compared with sodium tungstate for rebar corrosion in concrete.
Research limitations/implications
This paper has limitation of 0.0001 M concentration of inhibitors for 400 days of exposure in 3.5 per cent sodium chloride solution.
Originality/value
The research focused on the concentration of both inhibitors in the range from 0.1 to 0.0001 M, which resulted in greater structural protection from corrosion in adverse conditions, such as coastal areas.
Keywords
Acknowledgements
The authors express their thanks to the Principal, Al-Kabir Polytechnic, Mango, Jamshedpur, India, and Director, National Institute of Foundry and Forge Technology (NIIFT), Hatia, Ranchi, India, for their support and encouragement.
Citation
Ahmad, A., Kumar, R. and Kumar, A. (2019), "Effect of sodium molybdate and sodium tungstate in concrete rebar corrosion", Anti-Corrosion Methods and Materials, Vol. 66 No. 3, pp. 253-263. https://doi.org/10.1108/ACMM-06-2018-1960
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited