Numerical Simulation of Corrosion-Induced Cracking of Concrete Considering Rust Penetration into Cracks

Wang, Licheng; Liang, Yongqin; Ueda, Tamon

doi:10.1061/(asce)mt.1943-5533.0003778

Cited by 6 publications

(2 citation statements)

References 44 publications

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“…The distribution of circumferential non-uniformity indicates the thickness of the rust layer. Considering the relationship between the expansive ratio of corrosion products and the thickness of the rust layer, corrosion-induced concrete cracking can be calculated [27][28][29][30]. On the other hand, the longitudinal non-uniformity of steel corrosion is significant in determining the position of steel occupying the smallest cross-sectional area, thereby calculating the load-bearing capacity of RC beams or columns subjected to mechanical load [5,6,9,31].…”

Section: Non-uniform Parameter Analysis Of Corroded Steel Bars In Non...mentioning

confidence: 99%

Analysis of Circumferential and Longitudinal Non-Uniformity of Steel Corrosion in Concrete Subjected to Mechanical Load

Wu,

Xu,

Yang

et al. 2024

Buildings

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Reinforcement corrosion significantly impacts the service life of reinforced concrete structures. The present study investigates the circumferential and longitudinal non-uniformity of steel corrosion in concrete subjected to mechanical load. Results indicate that, in the case of steel corrosion in concrete subjected to mechanical load, the distribution of rust layer thickness around the perimeter of the steel bar is fitted well with a Gaussian distribution. As the corrosion rate gradually increases, the uniform coefficient is linearly proportional to the minimum thickness of the rust layer. With respect to the longitudinal non-uniformity of steel corrosion, load-induced transverse cracks have a significant impact on the non-uniformity of corrosion, leading to the formation of rust peaks near the locations of transverse cracks. In the vicinity of each rust peak, the corrosion rate of the steel bar follows a Gaussian distribution. With respect to the non-uniformity of corrosion along the longitudinal rebar, a Gumbel distribution is identified to fit well, both in the cases of the non-stressed section and the pure bending section, although with dissimilar non-uniform parameters. Crack coefficients (α and β) are introduced to describe the influence of transverse cracks on the longitudinal non-uniformity of steel corrosion.

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Section: Non-uniform Parameter Analysis Of Corroded Steel Bars In Non...mentioning

confidence: 99%

Analysis of Circumferential and Longitudinal Non-Uniformity of Steel Corrosion in Concrete Subjected to Mechanical Load

Wu,

Xu,

Yang

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…The rusting current I was set to 1.09 A DC for all specimens in the test. The degree of rusting of the rebars was controlled by controlling the length of rusting time, and the amount of rusting estimated by using Faraday's law [33] is shown in table 1. Since this experiment was localized corrosion, the maximum cross-sectional area loss rate of corrosion was adopted to reflect the actual corrosion condition of the specimen.…”

Section: Specimens Preparation and Specimens Corrosionmentioning

confidence: 99%

Quantitative corrosion detection of reinforced concrete based on self-magnetic flux leakage and rust spot area

Chen¹,

Liu²,

Lin³

et al. 2022

Eng. Res. Express

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The internal rebar corrosion of reinforced concrete (RC) structures harm the bearing capacity and durability of structures. Existing methods can measure rebar corrosion but are unsuitable for RC structures. Given this, the self-magnetic flux leakage (SMFL) field of V-shaped rebar corrosion damage was analyzed according to the magnetic dipole model, and the parameter K was proposed to characterize the corrosion degree. Using the naive Bayes algorithm, the SMFL method and the rust spot area analysis method were correlated to propose a rebar corrosion detection method. A corrosion detection experiment was conducted on RC specimens. The results showed that the parameter K was linearly correlated with the maximum cross-sectional rust loss rate ƞ. Using the parameter K to evaluate the rust degree, the accuracy of rebar rust classification was 70%. After introducing the rust spot area ratio S as a supplementary parameter, the accuracy of rebar rust classification increased by 12.5% to 82.5%. This indicates that the proposed method could quantitatively detect the corrosion of the rebars within the concrete.

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Experimental and numerical investigation into corrosion-induced mortar/concrete cracking with distributed optical fiber sensors

Zhao

Tang²,

Verstrynge³

et al. 2022

J Civil Struct Health Monit

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Numerical Simulation of Corrosion-Induced Cracking of Concrete Considering Rust Penetration into Cracks

Cited by 6 publications

References 44 publications

Analysis of Circumferential and Longitudinal Non-Uniformity of Steel Corrosion in Concrete Subjected to Mechanical Load

Analysis of Circumferential and Longitudinal Non-Uniformity of Steel Corrosion in Concrete Subjected to Mechanical Load

Quantitative corrosion detection of reinforced concrete based on self-magnetic flux leakage and rust spot area

Experimental and numerical investigation into corrosion-induced mortar/concrete cracking with distributed optical fiber sensors

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