Performance of corrosion inhibitors in reinforced concrete elements under electrical voltage

Igor Lapiro, Alexander Mezhov, Konstantin Kovler

Research output: Contribution to journalArticlepeer-review

Abstract

The current paper develops a novel accelerated corrosion test method based on Faraday's law to investigate the performance of different inhibitors in reinforced concrete elements under electrical voltage. Using the proposed method two commercially available and three lab-made inhibitors were tested. Lab-made inhibitors based on potassium fluorosilicate and amine carboxylate showed the best performance over others. Furthermore, it is found that under an electrical potential environment beyond 3.6 V, the higher the concrete strength, the more efficient is the corrosion inhibition. Based on experimental results, a novel model describing the corrosion evolution in reinforced concrete was proposed.

Original languageEnglish
Article number127656
JournalConstruction and Building Materials
Volume342
DOIs
StatePublished - 1 Aug 2022

Keywords

  • Accelerated test
  • Corrosion inhibitor
  • Reinforced concrete
  • Steel corrosion
  • Stray current

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • General Materials Science
  • Civil and Structural Engineering

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