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Journal of Applied Electrochemistry

, Volume 33, Issue 12, pp 1183–1189 | Cite as

The performance of a migrating corrosion inhibitor suitable for reinforced concrete

  • W. Morris
  • A. Vico
  • M. Vázquez
Article

Abstract

The protection provided by a migrating corrosion inhibitor (MCI) based on an alkylaminoalcohol was tested on concrete specimens containing reinforcing steel bar (rebar) segments. Two inhibitor dosages were investigated, together with two water/cement ratios and various chloride contents. The inhibition efficiency was followed over a period of 1000 days measuring electrical and electrochemical parameters such as the corrosion potential, the corrosion current density, the electrical resistance and performing electrochemical impedance spectra. The inhibitor was able to reduce the corrosion rate only when the initial chloride content was below 0.16 wt.% (percent weight relative to cement content). The efficiency increased as the water/cement ratio increased. There was no beneficial effect when the initial chloride content was greater than 0.43 wt.%. The efficiency of the product increased when the amount of inhibitor being applied doubled.

chloride corrosion durability inhibitors reinforced concrete 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  1. 1.División Corrosión, INTEMA, Facultad de IngenieríaUniversidad Nacional de Mar del PlataMar del PlataArgentina

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