Effects of galvanostatic and artificial chloride environment methods on the steel corrosion spatial variability and probabilistic flexural capacity of RC beams

Jiyu Xin; Mitsuyoshi Akiyama; Shinichi Miyazato; Dan M. Frangopol; Sopokhem Lim; Zhejun Xu; Ao Li

doi:10.1080/15732479.2022.2061016

Effects of galvanostatic and artificial chloride environment methods on the steel corrosion spatial variability and probabilistic flexural capacity of RC beams

Jiyu Xin, Mitsuyoshi Akiyama^*, Shinichi Miyazato, Dan M. Frangopol, Sopokhem Lim, Zhejun Xu, Ao Li

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

The galvanostatic method has been widely used for accelerating the corrosion of reinforcing bars in concrete to complete test studies within a reasonable timeframe. However, which level of current density induces characteristics of steel corrosion spatial variability and the associated structural performance of corroded reinforced concrete (RC) beams that are similar to those observed under natural conditions remains unknown. In this paper, comprehensive experimental research is conducted to compare the characteristics of spatial growth in steel weight loss and crack width and the structural behavior of corroded RC beams by two corrosion-accelerated methods (i.e. galvanostatic method at six current densities and artificial chloride environment method). The effects of these corrosion acceleration methods on Gumbel’s location and scale distribution parameters and the associated yield load capacity of corroded RC beams are investigated using Monte Carlo-based two-dimensional finite element analysis. Finally, a suitable current density is recommended to better simulate the steel corrosion distribution and the associated yield load capacity of RC beams in comparison to those observed under an artificial chloride environment.

Original language	English
Pages (from-to)	1506-1525
Number of pages	20
Journal	Structure and Infrastructure Engineering
Volume	18
Issue number	10-11
DOIs	https://doi.org/10.1080/15732479.2022.2061016
Publication status	Published - 2022

Keywords

Galvanostatic
Gumbel distribution
X-ray technology
artificial chloride environment
reinforced concrete beams
spatial variability
steel corrosion

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
Safety, Risk, Reliability and Quality
Geotechnical Engineering and Engineering Geology
Ocean Engineering
Mechanical Engineering

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10.1080/15732479.2022.2061016

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Effects of galvanostatic and artificial chloride environment methods on the steel corrosion spatial variability and probabilistic flexural capacity of RC beams. / Xin, Jiyu; Akiyama, Mitsuyoshi; Miyazato, Shinichi et al.
In: Structure and Infrastructure Engineering, Vol. 18, No. 10-11, 2022, p. 1506-1525.

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

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title = "Effects of galvanostatic and artificial chloride environment methods on the steel corrosion spatial variability and probabilistic flexural capacity of RC beams",

abstract = "The galvanostatic method has been widely used for accelerating the corrosion of reinforcing bars in concrete to complete test studies within a reasonable timeframe. However, which level of current density induces characteristics of steel corrosion spatial variability and the associated structural performance of corroded reinforced concrete (RC) beams that are similar to those observed under natural conditions remains unknown. In this paper, comprehensive experimental research is conducted to compare the characteristics of spatial growth in steel weight loss and crack width and the structural behavior of corroded RC beams by two corrosion-accelerated methods (i.e. galvanostatic method at six current densities and artificial chloride environment method). The effects of these corrosion acceleration methods on Gumbel{\textquoteright}s location and scale distribution parameters and the associated yield load capacity of corroded RC beams are investigated using Monte Carlo-based two-dimensional finite element analysis. Finally, a suitable current density is recommended to better simulate the steel corrosion distribution and the associated yield load capacity of RC beams in comparison to those observed under an artificial chloride environment.",

keywords = "Galvanostatic, Gumbel distribution, X-ray technology, artificial chloride environment, reinforced concrete beams, spatial variability, steel corrosion",

author = "Jiyu Xin and Mitsuyoshi Akiyama and Shinichi Miyazato and Frangopol, {Dan M.} and Sopokhem Lim and Zhejun Xu and Ao Li",

note = "Funding Information: This work was supported by JSPS KAKENHI grant numbers 19H00813 and 19K15078, Japan Construction Information Center (JACIC) grant number 2021-1, and CSC-WASEDA Joint Scholarship Program grant number 201806560017. The authors acknowledge experimental support from Mr. Atsushi Hokura at Kanazawa Institute of Technology and the constructive suggestions from Dr. Mingyang Zhang at Tongji University for this research. Funding Information: The authors acknowledge experimental support from Mr. Atsushi Hokura at Kanazawa Institute of Technology and the constructive suggestions from Dr. Mingyang Zhang at Tongji University for this research. Publisher Copyright: {\textcopyright} 2022 Informa UK Limited, trading as Taylor & Francis Group.",

year = "2022",

doi = "10.1080/15732479.2022.2061016",

language = "English",

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AU - Xin, Jiyu

AU - Akiyama, Mitsuyoshi

AU - Miyazato, Shinichi

AU - Frangopol, Dan M.

AU - Lim, Sopokhem

AU - Xu, Zhejun

AU - Li, Ao

N1 - Funding Information: This work was supported by JSPS KAKENHI grant numbers 19H00813 and 19K15078, Japan Construction Information Center (JACIC) grant number 2021-1, and CSC-WASEDA Joint Scholarship Program grant number 201806560017. The authors acknowledge experimental support from Mr. Atsushi Hokura at Kanazawa Institute of Technology and the constructive suggestions from Dr. Mingyang Zhang at Tongji University for this research. Funding Information: The authors acknowledge experimental support from Mr. Atsushi Hokura at Kanazawa Institute of Technology and the constructive suggestions from Dr. Mingyang Zhang at Tongji University for this research. Publisher Copyright: © 2022 Informa UK Limited, trading as Taylor & Francis Group.

PY - 2022

Y1 - 2022

N2 - The galvanostatic method has been widely used for accelerating the corrosion of reinforcing bars in concrete to complete test studies within a reasonable timeframe. However, which level of current density induces characteristics of steel corrosion spatial variability and the associated structural performance of corroded reinforced concrete (RC) beams that are similar to those observed under natural conditions remains unknown. In this paper, comprehensive experimental research is conducted to compare the characteristics of spatial growth in steel weight loss and crack width and the structural behavior of corroded RC beams by two corrosion-accelerated methods (i.e. galvanostatic method at six current densities and artificial chloride environment method). The effects of these corrosion acceleration methods on Gumbel’s location and scale distribution parameters and the associated yield load capacity of corroded RC beams are investigated using Monte Carlo-based two-dimensional finite element analysis. Finally, a suitable current density is recommended to better simulate the steel corrosion distribution and the associated yield load capacity of RC beams in comparison to those observed under an artificial chloride environment.

AB - The galvanostatic method has been widely used for accelerating the corrosion of reinforcing bars in concrete to complete test studies within a reasonable timeframe. However, which level of current density induces characteristics of steel corrosion spatial variability and the associated structural performance of corroded reinforced concrete (RC) beams that are similar to those observed under natural conditions remains unknown. In this paper, comprehensive experimental research is conducted to compare the characteristics of spatial growth in steel weight loss and crack width and the structural behavior of corroded RC beams by two corrosion-accelerated methods (i.e. galvanostatic method at six current densities and artificial chloride environment method). The effects of these corrosion acceleration methods on Gumbel’s location and scale distribution parameters and the associated yield load capacity of corroded RC beams are investigated using Monte Carlo-based two-dimensional finite element analysis. Finally, a suitable current density is recommended to better simulate the steel corrosion distribution and the associated yield load capacity of RC beams in comparison to those observed under an artificial chloride environment.

KW - Galvanostatic

KW - Gumbel distribution

KW - X-ray technology

KW - artificial chloride environment

KW - reinforced concrete beams

KW - spatial variability

KW - steel corrosion

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ER -

Effects of galvanostatic and artificial chloride environment methods on the steel corrosion spatial variability and probabilistic flexural capacity of RC beams

Abstract

Keywords

ASJC Scopus subject areas

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