Bending performance of reinforced concrete member deteriorated by corrosion

This paper presents the study results concerning the influence of corrosion of reinforcing bars on the bending performance of reinforced concrete (RC) members in order to serve for maintenance of RC structures. In this study, static bending tests were carried out for 13 corroded RC members and a three-dimensional shape scanning method of the corroded reinforcing bar was developed and applied to measurement of the corrosion amount. From the test results, it was proved that the tensile strength of reinforcing bars and the ultimate strength of RC members were decreased not only by the averaged loss of cross section of reinforcing bars but also by the localised corrosion.