Advantages and Disadvantages of
hand mixing of concrete.
Machine mixing
All the materials are added into the mechanical
mixer and rotated for certain time(1- 4 mins). The
mixture is then taken out of the drum and
transported.
It is to be noted that if water is added 1st in the
mixer it ensures evenly distribution of water in the
mix.
The speed and time of mixing is crucial(important)
and has to be supervised because it affects the
quality and strength of concrete.
The concrete discharged from mixer should also
be consumed within 30 mins.
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