3D simulation of localized steel corrosion in chloride contaminated reinforced concrete

Cao, Chong

doi:10.1016/j.conbuildmat.2014.09.030

Cited by 75 publications

(18 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The corrosion degree (average cross-sectional loss) of new beams after about 3 years of exposure was nearly the same as that of old beams after more than 23 years of exposure. Cao [30] built a 3-D computational model of corrosion in a chloride environment and he also found that the pitting factor decreased in the dynamic corrosion process. It can be concluded that pitting factor is affected not only by corrosion time, but also by many other factors which lead to different corrosion rates.…”

Section: The Ratio Between Maximum Cross-sectional Loss and Average Cmentioning

confidence: 98%

Distribution of corrosion and pitting factor of steel in corroded RC beams

François

Dang

et al. 2015

Construction and Building Materials

View full text Add to dashboard Cite

Section: The Ratio Between Maximum Cross-sectional Loss and Average Cmentioning

confidence: 98%

Distribution of corrosion and pitting factor of steel in corroded RC beams

François

Dang

et al. 2015

Construction and Building Materials

View full text Add to dashboard Cite

“…Indeed corrosion and the distribution of corrosion products in corroded rebar do not occur uniformly in practice and non-uniform corrosion around the rebar is commonly found in real situations [18]. The non-uniform corrosion problem has been studied by finite element methods [27][28][29][30][31] or experimental method [32]. However, for the sake of simplicity, the porous zone around the steel bar and the expansive pressure exerted on the surrounding concrete are both assumed to be uniformly distributed in the tangential direction [1,21] in this paper.…”

Section: Stress Initiation Stagementioning

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

View full text Add to dashboard Cite

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.

show abstract

“…In fact, unlike the middle bar, the corner bar may have different corrosion expansion since chlorides might penetrate through both the top and side concrete covers. In recent years, two dimensional diffusion analysis following the Fick' law were carried out (Cao 2014, Cao and Cheung 2014, Jin, Zhang, Du and Li 2015, Muthulingam and Rao 2015.…”

Section: Superposition Of Corrosion Expansionmentioning

confidence: 99%

Accurate cover crack modelling of reinforced concrete structures subjected to non-uniform corrosion

Yang

2018

Structure and Infrastructure Engineering

View full text Add to dashboard Cite

Concrete cover cracking caused by reinforcement corrosion is a significant durability problem of reinforced concrete structures. Extensive research has been carried out in the last few decades while most were focused on corrosion of a single reinforcing bar. Very little research has examined the whole cover cracking of reinforced concrete structures due to multiple reinforcement corrosion. This paper develops a numerical model to predict the structural failure of the whole cover of concrete induced by corrosion of multiple reinforcing bars. Moreover, a non-uniform corrosion model is established based on experimental results, in contrast to conventional uniform assumption. Two typical cover failure modes under the non-uniform corrosion of multiple reinforcing bars are identified and discussed. The effects of cover thickness, reinforcement spacing, fracture energy of concrete, etc., on cover cracking patterns and crack width are also investigated. The derived numerical model is verified by comparing the results with those from experiments in literature. Accurate prediction of concrete cover cracking can allow timely maintenance of existing structures and rational design for new buildings which prolongs the service life of the reinforced concrete structures.

show abstract

3D simulation of localized steel corrosion in chloride contaminated reinforced concrete

Cited by 75 publications

References 28 publications

Distribution of corrosion and pitting factor of steel in corroded RC beams

Distribution of corrosion and pitting factor of steel in corroded RC beams

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

Accurate cover crack modelling of reinforced concrete structures subjected to non-uniform corrosion

Contact Info

Product

Resources

About