Influence of temperature on the electrical resistivity of concrete and kinect corrosion of reinforcemen

  • Lucas Chaves Chiaradia Departamento de Materiais de Construção, Escola de Engenharia, Universidade Federal de Minas Gerais, Belo Horizonte-Mg, Brasil.
  • Fernando do Couto Rosa Almeida Departamento de Materiais de Construção, Escola de Engenharia, Universidade Federal de Minas Gerais, Belo Horizonte-Mg, Brasil.
  • Maria Teresa Paulino Aguilar Departamento de Materiais de Construção, Escola de Engenharia, Universidade Federal de Minas Gerais, Belo Horizonte-Mg, Brasil.
  • Enio José Pazini Figueiredo Escola de Engenharia Civil e Ambiental, Universidade Federal de Goiás, Goiânia-GO, Brasil.
Keywords: reinforcement concrete, durability, corrosion, electrical resistivity, temperature

Abstract

The work evaluated the influence of temperature on the concrete electrical resistivity measurements and corrosion kinetics in reinforced concrete structures subjected to chlorides. The concretes were mechanically characterized at 28 and 90 days. After 204 days, the specimens were subjected to temperature cycles ranging from 55°C to -5°C. The results indicated that the corrosion kinetics and electrical resistivity varied with the temperature changes. At higher temperatures, traces contaminated with Cl- showed a high probability of corrosion and a decrease in electrical resistivity values, however, at negative temperature, the probability of corrosion was insignificant and the electrical resistivity values were the highest. 

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Published
2024-01-01
How to Cite
Chaves Chiaradia, L., Rosa Almeida, F. do C., Paulino Aguilar, M. T., & Pazini Figueiredo, E. J. (2024). Influence of temperature on the electrical resistivity of concrete and kinect corrosion of reinforcemen. Revista ALCONPAT, 14(1), 1 - 12. https://doi.org/10.21041/ra.v14i1.709