Assessment of concrete damage and strength degradation caused by reinforcement corrosion

Article


Nepal, J. and Chen, Hua-Peng 2015. Assessment of concrete damage and strength degradation caused by reinforcement corrosion. Journal of Physics: Conference Series. 628, p. Art. 012050.
AuthorsNepal, J. and Chen, Hua-Peng
Abstract

Structural performance deterioration of reinforced concrete structures has been extensively investigated, but very limited studies have been carried out to investigate the effect of reinforcement corrosion on time-dependent reliability with consideration of the influence of mechanical characteristics of the bond interface due to corrosion. This paper deals with how corrosion in reinforcement creates different types of defects in concrete structure and how they are responsible for the structural capacity deterioration of corrosion affected reinforced concrete structures during their service life. Cracking in cover concrete due to reinforcement corrosion is investigated by using rebar-concrete model and realistic concrete properties. The flexural strength deterioration is analytically predicted on the basis of bond strength evolution due to reinforcement corrosion, which is examined by the experimental data available. The time-dependent reliability analysis is undertaken to calculate the life time structural reliability of corrosion damaged concrete structures by stochastic deterioration modelling of reinforced concrete. The results from the numerical example show that the proposed approach is capable of evaluating the damage caused by reinforcement corrosion and also predicting the structural reliability of concrete structures during their lifecycle.

JournalJournal of Physics: Conference Series
Journal citation628, p. Art. 012050
ISSN1742-6588
Year2015
PublisherIOP Publishing: Conference Series
Publisher's version
License
CC BY
Digital Object Identifier (DOI)doi:10.1088/1742-6596/628/1/012050
Web address (URL)https://doi.org/10.1088/1742-6596/628/1/012050
Publication dates
Online09 Jul 2015
Publication process dates
Deposited08 Oct 2018
Copyright information© 2015 IOP Publishing
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https://repository.uel.ac.uk/item/85571

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