Modeling damage in concrete caused by corrosion of reinforcement: coupled 3D FE model

Ožbolt, Joško; Oršanić, Filip; Balabanić, Gojko; Kušter, Marija

doi:10.1007/s10704-012-9774-3

Cited by 93 publications

(48 citation statements)

References 20 publications

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“…the counter electrode) wrapped around the specimen. A modeling approach of Ožbolt et al [11], who simulated the movement of red rust as a diffusion problem, seems promising in that respect. The higher "diffusivity" of large cracks, with respect to rust transport, indeed explains the observations.…”

Section: Discussion Of Ct Scan Resultsmentioning

confidence: 99%

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Cracking of SHCC due to reinforcement corrosion

Šavija¹,

Luković²,

Pacheco³

et al. 2016

Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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Abstract. Reinforcement corrosion is the most important deterioration mechanism affecting reinforced concrete infrastructures. After corrosion starts, expansive pressures are exerted onto the surrounding concrete, causing cracking and spalling of the cover concrete. The amount of cover cracking can possibly be reduced by using strain hardening cementitious composites (SHCCs). In this work, the ability of strain hardening cementitious composite to resist cracking due to corrosion of reinforcement is studied. An accelerated corrosion experiment is performed to speed up the corrosion process. Micro-computed X-ray tomography technique (CT-scanning) was used for monitoring rust formation during accelerated corrosion of reinforcement and subsequent cover cracking. Development of cracks in SHCC specimen was compared to a reference specimen. While the SHCC specimen developed a large number of small cracks, the reference specimen exhibited extensive spalling due to corrosion. The SHCC specimen showed superior performance compared to the reference specimen due to its multiple microcracking ability. SHCC proved to be an excellent alternative to brittle cementitious materials when corrosion induced cracking of the cover is a concern.

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Section: Discussion Of Ct Scan Resultsmentioning

confidence: 99%

“…The quantification of this effect, however, remains an issue. Even so, the importance of taking this relief mechanism into account in numerical models is clear [11,12]. When comparing the two tested specimens, it is clear that the control mixture specimen exhibits more brittle behavior.…”

Section: Discussion Of Ct Scan Resultsmentioning

confidence: 99%

Cracking of SHCC due to reinforcement corrosion

Šavija¹,

Luković²,

Pacheco³

et al. 2016

Proceedings of the 9th International Conference on Fracture Mechanics of Concrete and Concrete Structures

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show abstract

“…Wong et al [39] found that a relatively large amount of rust could be transported through radial cracks. However, Ožbolt et al [40] argued that this transport was very much dependent on the level of water saturation. Zhao et al [25,41] observed that corrosion products did not fill the corrosion-induced cracks and they also found some corrosion products penetrated into the concrete on both sides of cracks.…”

Section: Volume Expansion In the Steel-rust-concrete Interfacementioning

confidence: 99%

A double-cylinder model incorporating confinement effects for the analysis of corrosion-caused cover cracking in reinforced concrete structures

Zhang

2015

Corrosion Science

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A double-cylinder model incorporating confinement effects for the analysis of corrosion-caused cover cracking in reinforced concrete structures, Corros. Sci. (2015), http://dx. a b s t r a c tIn this paper, a double-cylinder model with a consideration of concrete confinement effects is proposed to simulate reinforcement corrosion-caused cover cracking. The analytical model incorporates force equilibrium in both tangential and radial directions as well as volume expansion and deformation compatibility in the steel-rust-concrete interface. Confinement effects outside the cylinders are taken into account by comparing the numerical and available experimental results. Parametric studies are conducted to investigate the variations of the critical volume of consumed steel, critical expansive pressure and time to cover cracking.

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“…After the depassivation of steel reinforcement, a macrocell corrosion with a larger cathode area and smaller anode area is formed [5,6].…”

Section: Introductionmentioning

confidence: 99%

Entire Process Simulation of Corrosion due to the Ingress of Chloride Ions and CO₂ in Concrete

Zhu

Meng

Liu

et al. 2018

Advances in Materials Science and Engineering

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A comprehensive mathematical model which can simulate the entire corrosion process of reinforcement in concrete is proposed in this paper. e combined effect of carbonation and chloride ingress is also discussed in the mass transport module. Nonuniform corrosion distribution is employed for the study of mechanical damage in concrete. e link of ABAQUS with MATLAB is adopted for the numerical implementation of the developed model. e numerical results of an illustrative example indicate that the depassivation time of reinforcement, corrosion rate and expansion displacement, and cracking pattern of concrete all can be accurately predicted.

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Modeling damage in concrete caused by corrosion of reinforcement: coupled 3D FE model

Cited by 93 publications

References 20 publications

Cracking of SHCC due to reinforcement corrosion

Cracking of SHCC due to reinforcement corrosion

A double-cylinder model incorporating confinement effects for the analysis of corrosion-caused cover cracking in reinforced concrete structures

Entire Process Simulation of Corrosion due to the Ingress of Chloride Ions and CO₂ in Concrete

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Modeling damage in concrete caused by corrosion of reinforcement: coupled 3D FE model

Cited by 93 publications

References 20 publications

Cracking of SHCC due to reinforcement corrosion

Cracking of SHCC due to reinforcement corrosion

A double-cylinder model incorporating confinement effects for the analysis of corrosion-caused cover cracking in reinforced concrete structures

Entire Process Simulation of Corrosion due to the Ingress of Chloride Ions and CO2 in Concrete

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Entire Process Simulation of Corrosion due to the Ingress of Chloride Ions and CO₂ in Concrete