Investigation of the effects of multiple and multi-directional reinforcement on corrosion-induced concrete cracking pattern

摘要: Abstract Reinforced concrete (RC) structures are widely used, yet prone to damage induced by reinforcement corrosion which causes susceptibility of spalling and eventually a reduced serviceable life. The visual inspection has been performed usually for structural assessment, but this does not account the local interactions between rebars. Consequently, detailed scrutiny is required consider effects various parameters on initiation propagation corrosion-induced cracking. This experimental study considers effect multiple multidirectional rebars development Additionally, location change in order occurrence investigated research. For purpose, reinforced panels with unidirectional rebar arrangements varying cover depth tested using an accelerated technique. results show significant role confinement controlling widths cracks provided both arrangements. Moreover, boundary conditions along increased confining pressure alters generation arrangement. In absence enough surrounding concrete, non-corroding can also form because expansion adjacent corroding inclusion crack direction cracking Further, previously generated may close considerably from corrosion. facilitates comprehension impact influencing factors affecting real structures.