Dynamic effect of re-vibration on compressive strength of concrete.

Abstract

The dynamic effect of re-vibration on the compressive strength of concrete using concrete mix aggregate of 1:2:4 form Ordinary Portland Cement with water to cement ratio of 0.75 is presented. Concrete cubes which were cast with re-vibration time-lag intervals of 5 minutes successions for 60minutes period of re-vibration process at 7, 21 and 28 days of curing were crushed for their compressive strength. Result shows that at successive time-lag intervals, there is an appreciable dynamic rise in compressive strength of concrete with such water to cement ratio.The result obtained suggests the of 5minutes time-lag interval of re-vibration process to depict the dynamic rise of compressive strength of concrete.