Abstract
This research presents an experimental study on the load capacity of reinforced concrete(RC) compression and flexural members induced by chloride corrosion. The parameters considered in this study are both the increased corrosion ratios of reinforcing bar and the variation of partial corroded length. Some test specimens are corroded by using Accelerated Potentiometeric Corrosion Method and the others which are fabricated by using compressive rubber tubes at the contact surface between concrete and steel bar are tested in order to investigate the load capacity of the structure in the events of the degradation of bonding strength at the interface between concrete and steel bar. It is finally shown that the overall load capacity of compression member with corroded reinforcing bars is decreased because it is mainly influenced by not the bonding strength at the concrete-steel contact surface but the reduction of the effective section area at the corroded reinforcing bar; while for the flexural members, compared to the compression member, the degradation of load capacity is remarkable. It is evident that the flexural member is influenced by both two parameters like the effective area and bonding strength at the contact surface except initial corrosion ratio 2%. The reduction of the load capacity of this member leads to occur severe crack and prematured failure after yielding the member.
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