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A numerical model to assess mechanical properties of corroded reinforcement



Author(s): Y. Du, Y. Xu, C. Tang
Paper category: Workshop
Book title: International RILEM Workshop on Integral Service Life Modelling of Concrete Structures
Editor(s): R.M. Ferreira, J. Gulikers, C. Andrade
Print ISBN: 978-2-35158-058-5
e-ISBN: 978-2-35158-090-5
Publisher: RILEM Publications SARL
Pages: 315 - 322
Total Pages: 8
Language: English


Abstract: 
This paper reports a numerical model for the purpose of evaluating the strength and elongation of corroded reinforcement analytically. The irregular removals of iron ions from the reinforcement surface caused by its corrosion were modelled using both maximum and average attack penetration over the cross section and along the length of the reinforcement. It is assumed that corroded reinforcement reaches its yield force and ultimate elongation when its maximum stress under an axial tension force at its minimum residual section is equal to the yield and ultimate strengths of its corresponding non-corroded reinforcement, respectively. As a result, series of equations were developed to determine the strength and elongation of corroded reinforcement, which have been validated against the experimental results of simulated corroded reinforcements and compared with the results of accelerated corroded reinforcements reported by Andrade C et al1.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00