1) what is the use of pin and plate vibrators during slab
casting? 2) how much cement bags are required for 1sqm
4inch brick wall? 3) Is it viable to provide overlap at
column , beam & slab junction. if no why? 4) if bar dia is
changing in column reinforcement , which dia bars overlap
is considered? 5) what is isolated and ecentric footing?

Answer Posted / modipraveen

Hi, I am answering a answer for each question.

Pin/ Needle vibrator are to remove air/void in concrete
generally its used for deep thing like Beam, columns and flat
slab and even slab where heavy reinforcement is used.
Plate vibrator are used to have rigid base like grade slab,
RCC/CC roads.

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