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Prediction of reinforcement corrosion using corrosion induced cracks width in corroded reinforced concrete beams
Abstract This paper studies the evolution of reinforcement corrosion in comparison to corrosion crack width in a highly corroded reinforced concrete beam. Cracking and corrosion maps of the beam were drawn and steel reinforcement was recovered from the beam to observe the corrosion pattern and to measure the loss of mass of steel reinforcement. Maximum steel cross-section loss of the main reinforcement and average steel cross-section loss between stirrups were plotted against the crack width. The experimental results were compared with existing models proposed by Rodriguez et al., Vidal et al. and Zhang et al. Time prediction models for a given opening threshold are also compared to experimental results. Steel cross-section loss for stirrups was also measured and was plotted against the crack width. It was observed that steel cross-section loss in the stirrups had no relationship with the crack width of longitudinal corrosion cracks.
Highlights Relationship between crack and corrosion of reinforcement was investigated. Corrosion results of natural process and then corresponds to in-situ conditions. Comparison with time predicting model is provided. Prediction of load-bearing capacity from crack pattern was studied.
Prediction of reinforcement corrosion using corrosion induced cracks width in corroded reinforced concrete beams
Abstract This paper studies the evolution of reinforcement corrosion in comparison to corrosion crack width in a highly corroded reinforced concrete beam. Cracking and corrosion maps of the beam were drawn and steel reinforcement was recovered from the beam to observe the corrosion pattern and to measure the loss of mass of steel reinforcement. Maximum steel cross-section loss of the main reinforcement and average steel cross-section loss between stirrups were plotted against the crack width. The experimental results were compared with existing models proposed by Rodriguez et al., Vidal et al. and Zhang et al. Time prediction models for a given opening threshold are also compared to experimental results. Steel cross-section loss for stirrups was also measured and was plotted against the crack width. It was observed that steel cross-section loss in the stirrups had no relationship with the crack width of longitudinal corrosion cracks.
Highlights Relationship between crack and corrosion of reinforcement was investigated. Corrosion results of natural process and then corresponds to in-situ conditions. Comparison with time predicting model is provided. Prediction of load-bearing capacity from crack pattern was studied.
Prediction of reinforcement corrosion using corrosion induced cracks width in corroded reinforced concrete beams
Khan, Inamullah (author) / François, Raoul (author) / Castel, Arnaud (author)
Cement and Concrete Research ; 56 ; 84-96
2013-11-08
13 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2014