Abstract
The purpose of this study is to obtain appropriate conditions of concrete revibration when placing on the consolidated fresh concrete. In this experimental study, the effect of revibrating conditions on compressive and bond strength were investigated. Parameters included timing from mixing to revibrating, duration of revibrating, distance of revibrating point and duration of contact between deformed bar and internal vibrator. As a result, compressive and bond strength of revibrated specimens showed an increase when timing from mixing to revibrating increased. But bond strength of revibrated specimens with deformed bar in contact with internal vibrator showed a decrease when timing from mixing to revibrating and duration of the contact increased. This paper also proposed an appropriate method of revibrating when placing on the consolidated fresh concrete on the basis of the experimental results.
