The effect of macrocells between active and passive areas of steel reinforcements

C. Andrade; I. R. Maribona; S. Feliu; J. A. González; S. Feliu

doi:10.1016/0010-938X(92)90148-V

The effect of macrocells between active and passive areas of steel reinforcements

C. Andrade^*
, I. R. Maribona
, S. Feliu
, J. A. González
, S. Feliu

^*Corresponding author for this work

CSIC - Instituto de Ciencias de la Construcción Eduardo Torroja (IETCC)
CSIC - Centro Nacional de Investigaciones Metalurgicas (CENIM)

Research output: Contribution to journal › Article › peer-review

110 Citations (Scopus)

Abstract

The effects of macrocells formed between active (depassivated) and passive areas on the corrosion rate of steel reinforcements in concrete beams and slabs are studied. With a uniform distribution of current lines on the electrodes, the anodic current density (i.e. the corrosion rate) is a function of the difference in potential, ohmic resistance and polarization resistance. This case is approached when passive and active reinforcements are placed opposite each other. A coplanar location of the anode and cathode areas on the reinforcements results in a non-uniform distribution of the current. These cells are modelled by means of a transmission line circuit. A reasonable concordance is obtained between the theoretical predictions and the experimental data.

Original language	English
Pages (from-to)	237-249
Number of pages	13
Journal	Corrosion Science
Volume	33
Issue number	2
DOIs	https://doi.org/10.1016/0010-938X(92)90148-V
Publication status	Published - Feb 1992
Externally published	Yes

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title = "The effect of macrocells between active and passive areas of steel reinforcements",

abstract = "The effects of macrocells formed between active (depassivated) and passive areas on the corrosion rate of steel reinforcements in concrete beams and slabs are studied. With a uniform distribution of current lines on the electrodes, the anodic current density (i.e. the corrosion rate) is a function of the difference in potential, ohmic resistance and polarization resistance. This case is approached when passive and active reinforcements are placed opposite each other. A coplanar location of the anode and cathode areas on the reinforcements results in a non-uniform distribution of the current. These cells are modelled by means of a transmission line circuit. A reasonable concordance is obtained between the theoretical predictions and the experimental data.",

author = "C. Andrade and Maribona, \{I. R.\} and S. Feliu and Gonz{\'a}lez, \{J. A.\} and S. Feliu",

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T1 - The effect of macrocells between active and passive areas of steel reinforcements

AU - Andrade, C.

AU - Maribona, I. R.

AU - Feliu, S.

AU - González, J. A.

AU - Feliu, S.

PY - 1992/2

Y1 - 1992/2

N2 - The effects of macrocells formed between active (depassivated) and passive areas on the corrosion rate of steel reinforcements in concrete beams and slabs are studied. With a uniform distribution of current lines on the electrodes, the anodic current density (i.e. the corrosion rate) is a function of the difference in potential, ohmic resistance and polarization resistance. This case is approached when passive and active reinforcements are placed opposite each other. A coplanar location of the anode and cathode areas on the reinforcements results in a non-uniform distribution of the current. These cells are modelled by means of a transmission line circuit. A reasonable concordance is obtained between the theoretical predictions and the experimental data.

AB - The effects of macrocells formed between active (depassivated) and passive areas on the corrosion rate of steel reinforcements in concrete beams and slabs are studied. With a uniform distribution of current lines on the electrodes, the anodic current density (i.e. the corrosion rate) is a function of the difference in potential, ohmic resistance and polarization resistance. This case is approached when passive and active reinforcements are placed opposite each other. A coplanar location of the anode and cathode areas on the reinforcements results in a non-uniform distribution of the current. These cells are modelled by means of a transmission line circuit. A reasonable concordance is obtained between the theoretical predictions and the experimental data.

UR - https://www.scopus.com/pages/publications/0026816850

U2 - 10.1016/0010-938X(92)90148-V

DO - 10.1016/0010-938X(92)90148-V

M3 - Article

AN - SCOPUS:0026816850

SN - 0010-938X

VL - 33

SP - 237

EP - 249

JO - Corrosion Science

JF - Corrosion Science

IS - 2

ER -

The effect of macrocells between active and passive areas of steel reinforcements

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