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Effect of stray current on corrosion behavior of reinforcing steel: importance of cell geometry and orientation with respect to the electrical field. / Chen, Zhipei; Koleva, Dessi.

In: International Journal of Structural and Civil Engineering Research, Vol. 6, No. 2, 05.12.2016, p. 93-100.

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@article{839473ab69934696aedc7bfd1210d8a0,
title = "Effect of stray current on corrosion behavior of reinforcing steel: importance of cell geometry and orientation with respect to the electrical field",
abstract = "Stray current circulating in reinforced concrete structures may initiate corrosion or accelerate existing corrosion processes on embedded reinforcement. In some cases, the range of dangerous or unwanted interactions of stray currents under favorable conditions (environment), is much broader than is generally recognized. All these show that investigation of the effects of stray current on the corrosion behavior of steel is necessary and significant. In this work, the tested level of stray current was 3 mA/cm2, and the type of samples were reinforced mortar cubes (40 mm×40 mm×40 mm). To investigate the corrosion behavior of embedded steel undergoing stray current, the evaluation indicators adopted were OCP (Open Circuit Potential), Polarization resistance (Rp) derived through LPR (Linear Polarisation Resistance), and electrochemical parameters recorded through EIS (Electrochemical Impedance Spectroscopy) and PDP (Potentio-Dynamic Polarization). The recorded electrochemical response aimed to elucidate the importance of cell geometry i.e. the effect of steel orientation with respect to the electrical field (placed parallel or orthogonal to the current direction). It was found that the geometrical position of the steel bar is of significant importance and determines the level of stray current-induced degradation.",
keywords = "Stray current, Corrosion, Electrochemistry, Reinforcing steel",
author = "Zhipei Chen and Dessi Koleva",
year = "2016",
month = "12",
day = "5",
doi = "10.18178/ijscer.6.2.93-100",
language = "English",
volume = "6",
pages = "93--100",
journal = "International Journal of Structural and Civil Engineering Research",
issn = "2319-6009",
number = "2",

}

RIS

TY - JOUR

T1 - Effect of stray current on corrosion behavior of reinforcing steel: importance of cell geometry and orientation with respect to the electrical field

AU - Chen, Zhipei

AU - Koleva, Dessi

PY - 2016/12/5

Y1 - 2016/12/5

N2 - Stray current circulating in reinforced concrete structures may initiate corrosion or accelerate existing corrosion processes on embedded reinforcement. In some cases, the range of dangerous or unwanted interactions of stray currents under favorable conditions (environment), is much broader than is generally recognized. All these show that investigation of the effects of stray current on the corrosion behavior of steel is necessary and significant. In this work, the tested level of stray current was 3 mA/cm2, and the type of samples were reinforced mortar cubes (40 mm×40 mm×40 mm). To investigate the corrosion behavior of embedded steel undergoing stray current, the evaluation indicators adopted were OCP (Open Circuit Potential), Polarization resistance (Rp) derived through LPR (Linear Polarisation Resistance), and electrochemical parameters recorded through EIS (Electrochemical Impedance Spectroscopy) and PDP (Potentio-Dynamic Polarization). The recorded electrochemical response aimed to elucidate the importance of cell geometry i.e. the effect of steel orientation with respect to the electrical field (placed parallel or orthogonal to the current direction). It was found that the geometrical position of the steel bar is of significant importance and determines the level of stray current-induced degradation.

AB - Stray current circulating in reinforced concrete structures may initiate corrosion or accelerate existing corrosion processes on embedded reinforcement. In some cases, the range of dangerous or unwanted interactions of stray currents under favorable conditions (environment), is much broader than is generally recognized. All these show that investigation of the effects of stray current on the corrosion behavior of steel is necessary and significant. In this work, the tested level of stray current was 3 mA/cm2, and the type of samples were reinforced mortar cubes (40 mm×40 mm×40 mm). To investigate the corrosion behavior of embedded steel undergoing stray current, the evaluation indicators adopted were OCP (Open Circuit Potential), Polarization resistance (Rp) derived through LPR (Linear Polarisation Resistance), and electrochemical parameters recorded through EIS (Electrochemical Impedance Spectroscopy) and PDP (Potentio-Dynamic Polarization). The recorded electrochemical response aimed to elucidate the importance of cell geometry i.e. the effect of steel orientation with respect to the electrical field (placed parallel or orthogonal to the current direction). It was found that the geometrical position of the steel bar is of significant importance and determines the level of stray current-induced degradation.

KW - Stray current

KW - Corrosion

KW - Electrochemistry

KW - Reinforcing steel

UR - http://resolver.tudelft.nl/uuid:839473ab-6993-4696-aedc-7bfd1210d8a0

UR - http://www.ijscer.com/index.php?m=content&c=index&a=show&catid=142&id=311

U2 - 10.18178/ijscer.6.2.93-100

DO - 10.18178/ijscer.6.2.93-100

M3 - Article

VL - 6

SP - 93

EP - 100

JO - International Journal of Structural and Civil Engineering Research

T2 - International Journal of Structural and Civil Engineering Research

JF - International Journal of Structural and Civil Engineering Research

SN - 2319-6009

IS - 2

ER -

ID: 13681742