Discharging the Mixed Concrete:

Every type of mixer has got its own discharging arrangement. For example, in tilting type mixer the mixed concrete is discharged from the open top of the drum by tilting the drum downward and in pan mixers the mixed concrete is discharged through a central hole at the bottom of the pan. Whatever may be the discharging arrangement in mixer, certain precautions are necessary during the discharging operation. The full batch of mixed concrete should be discharged at the same time and not in parts. The discharged concrete should be collected in an enclosed container or hopper without spreading out. The concrete should be re-mixed if segregation is observed after discharging from the mixer,.

After done the day work the mixers should be cleaned and washed properly. Cleaning might be completed by charging the mixer with dry aggregates and water and then by rotating the drum for 1-2 minutes. The aggregates will induce abrasive action against the stick mortar, which will facilitate the cleaning action.