THE EFFECT OF REINFORCING STEEL CORROSION ON THE ADHESIVE STRENGTH OF REINFORCED CONCRETE (CASE STUDY OF THE FACULTY OF VETENARY MEDICINE BUILDING, MUHAMMADIYAH UNIVERSITY OF WEST SUMATRA)

Abstract

The construction of the UM west Sumatera Faculty of Veterinary Medicine Building hasstopped until the column work which has left 1,5 meters of overstep reinforcement on each columnsince 2021. During the period, the reinforcement has experienced uniform corrosion along the length of the reinforcement which causes a reduction in the cross-sectional area of the steel reinforcement so that the bearing capacity of the steek will decrease. This study was conducted to compare the bond strength of concrete with corroded and uncorroded reinforcement before construction continued the building. Concrete specimens of K-250 size 15X15X15 equipped with D19 reinforcement were made for bond strength test at the age of 28 days. The result shows that the bond strength of the concrete with corroded reinforcing steel was quite low. So that beforethe construction is continued, the corrosion on the entire surface of the reinforcement must be peeled off first.