Effect of vehicle-induced vibrations on early-age concrete during bridge widening

The purpose of this study was to conduct laboratory experiments that considered the effect of vehicle-induced vibrations on fresh concrete to determine the attainable concrete strength for bridge widening. A laboratory experimental program was carried out, where 120 concrete specimens were used in total to measure the compressive and bond strengths. The experiment results showed that vehicle-induced vibration does not need to be considered a serious risk to the concrete strength if the vibration duration is 6 h or less and the peak particle velocity is 0.3 cm/s or less.