Corrosion induced cracking modelled by a coupled transport-structural approach

Fahy, C., Wheeler, S. J. , Gallipoli, D. and Grassl, P. (2017) Corrosion induced cracking modelled by a coupled transport-structural approach. Cement and Concrete Research, 94, pp. 24-35. (doi: 10.1016/j.cemconres.2017.01.007)

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Transport of corrosion products into pores and cracks in concrete must be considered when predicting corrosion induced cracking in reinforced concrete structures, since this transport significantly delays the onset of cracking and spalling by reducing the amount of radial displacement imposed on the concrete at the steel/concrete interface. We aim to model this process by means of a coupled transport-structural approach, whereby the transport of corrosion products is determined by a pressure gradient generated by the confined volumetric expansion due to the transformation of steel into corrosion products. This pressure driven transport was studied by using both an axisymmetric thick-walled cylinder model and a network approach. The network approach was then applied to corrosion induced cracking experiments reported in the literature.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Grassl, Dr Peter and Wheeler, Professor Simon and Gallipoli, Dr Domenico
Authors: Fahy, C., Wheeler, S. J., Gallipoli, D., and Grassl, P.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Cement and Concrete Research
ISSN (Online):1873-3948
Published Online:24 January 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Cement and Concrete Research 94:24-35
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
566601SAFE - a Systems Approach For Engineered BarriersPeter GrasslEngineering & Physical Sciences Research Council (EPSRC)EP/I036427/1ENG - ENGINEERING INFRASTRUCTURE & ENVIR