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Mechanisms of Corrosion-Induced Cracks in Concrete

M. Ohtsu, F. A. K. M. Uddin

Abstract


Corrosion-induced cracks was simulated in expansion tests.   Kinematical mechanisms of micro-cracks were identified by theSiGMA analysis of acoustic emission (AE).   By applying the boundary element method (BEM), extension of the corrosion-induced crack in an arbitrary direction was analyzed.   It is demonstrated that extension of the corrosion-induced crack is governed by the mode-I failure, although all kinds of micro-cracks are observed  in results of AE analysis.

Keywords


corrosion-induced crack; acoustic emission; boundary element method; stress intensity factor; fracture mechanics

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References


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Ohtsu, M. and Uddin, F. A. K. M. Mechanisms of Corrosion-Induced Cracks in Concrete at Meso- and Macro-Scales, 2008, 6(3):419-429.

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