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Test of inhibitors for preventing corrosion of steel reinforcement in concrete

Test of inhibitors for preventing corrosion of steel reinforcement in concrete AbstractConcrete is more widely used than any other manmade material. The objective of this paper is to investigate the behavior of reinforced cement when migration corrosion and guar gum inhibitors are used. The concrete samples were exposed in aggressive media H2SO4 1 M and in the presence of 1∙10-3 M Cl-. Electrochemical measurements such as half-cell potential, polarization resistance and Tafel extrapolation methods were performed in order to obtain information on the corrosion behavior of the reinforcing steel in cement mortar. Results demonstrate high resistance polarization and low corrosion rate for concrete sample with inhibitor. The corrosion rate decreases approximately 95% in presence of locust bean gum and 80% in presence of migration inhibitor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Analele Universitatii "Ovidius" Constanta - Seria Chimie de Gruyter

Test of inhibitors for preventing corrosion of steel reinforcement in concrete

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References (21)

Publisher
de Gruyter
Copyright
© 2021 Albana Jano et al., published by Sciendo
ISSN
1223-7221
eISSN
2286-038X
DOI
10.2478/auoc-2021-0016
Publisher site
See Article on Publisher Site

Abstract

AbstractConcrete is more widely used than any other manmade material. The objective of this paper is to investigate the behavior of reinforced cement when migration corrosion and guar gum inhibitors are used. The concrete samples were exposed in aggressive media H2SO4 1 M and in the presence of 1∙10-3 M Cl-. Electrochemical measurements such as half-cell potential, polarization resistance and Tafel extrapolation methods were performed in order to obtain information on the corrosion behavior of the reinforcing steel in cement mortar. Results demonstrate high resistance polarization and low corrosion rate for concrete sample with inhibitor. The corrosion rate decreases approximately 95% in presence of locust bean gum and 80% in presence of migration inhibitor.

Journal

Analele Universitatii "Ovidius" Constanta - Seria Chimiede Gruyter

Published: Jul 1, 2021

Keywords: green inhibitor; migration inhibitor; locust bean gum; amino acid; amino alcohol

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