Answer / mukhram singh

curing is to be required for cement concrete prevent heating  for cement's chemical lime (CaCO3), silica (SiO2), alumina (Al2O3) and ferrous oxide (Fe2O3 etc. because concret is not creak. 

Answer / adil aziz

When we pour concrete after intial setting time chemical process is started which is known as hydration, certain amount of heat is evolved by which water gets evaporated, (if this water gets evaporated cracks get develop) so keep this concrete cool we sprinkle water on it.

i m searching for steel or rebar weight/meter (d)2/162 this is correct but why used here 162

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how many rod are needed in 99sqft room .

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the volume of 50kg bag is 27 lit 24.7 lit 44.7 lit 42.9 lit

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what is the difference between np2 and np3 concrete mix

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How much wastage we considered for cement

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