Pick up the correct statement from the following
The theory of formation of concrete is based on the phenomena of formation of voids
The bulking of sand is taken into account while volumetric proportioning of the aggregates
The dry sand and the sand completely flooded with water, have practically the same volume
The expansion and contraction joints are provided if concrete structures exceed 12 m in length
All the above
Correct answer is E
No explanation has been provided for this answer.