Modelling of Corrosion Induced Cover Cracking in Concrete with Exposed Reinforcement

Amila Jayasinghe1, Chinthaka Mallikarachchi1, Anura Nanayakkara1, Priyan Dias1

  • 1University of Moratuwa, Sri Lanka

Details

Category

Technical Sessions

Theme

Civil and Environmental Engineering

Sessions

08:30 - 10:00 | Wed 30 May | CCLR3 | W.1.1

Civil and Environmental Engineering I

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Abstract

Although reinforced concrete is the mostly widely used construction material, it presents some inherent durability problems. Corrosion of reinforcement is one such issues that researchers across several generations have tried to assess and address. Though different forms of corrosion have been studied, there is not much reported research on the corrosion (and its propagation) of reinforcement embedded in concrete with one end directly exposed to aggressive agents. This phenomenon is explored in this paper through numerical and experimental approaches. The experimental procedure was designed so that accelerated corrosion was induced while the resulting strain values were monitored. Simultaneously a conceptual numerical model was developed to capture the incremental corrosion propagation. A reasonable comparison between the experiment and numerical model is demonstrated, although the observed differences are also discussed.

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