QUESTION
Objective Question
The quantity of cement required for 1 cubic metre of concrete of mix 1:2:4 is:
Answer
( Option A)
6.25 bags
Solution
Dry volume = 1 x 1.52 = 1.52 m³.
Total mix ratio = 1+2+4 = 7.
Cement volume 1.52/7 = 0.2171 m³.
Using a cement bag volume of 0.035 m³, number of bags = 0.2171/0.035 =6.20 bags.
The nearest listed option is 6.25 bags
