Question
Download Solution PDFDetermine the volume of coarse aggregate (in m3 units), volume of fine aggregate (in m3 units) and cement (in kg units), respectively, for preparing 1 m3 of 1 : 2 : 4 (by volume) of concrete. (Assume 1 m3 of freshly mixed concrete corresponds to 1.54 m3 dry volume of concrete. Take 1 m3 of cement is equal to 1500 kg by weight.)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
This concrete mix is formulated with a ratio of 1:2:4. Which is indicating that, for every 1 cubic meter of concrete, 1 part is cement, 2 parts is sand, and 4 parts is coarse aggregates.
We know, 1 m3 of freshly mixed concrete = 1.54 m3 dry volume of concrete
Volume of cement = 1.54/7=0.22 m3
1 m3 of cement = 1500 kg by weight
0.22 m3 of aggregate = 1500×0.22=330 kg
Volume of sand = 1.54×(2/7)=0.44 m3
Volume of coarse aggregate = 1.54×(4/7)=0.88 m3
So, the answer is option D. Volume of coarse aggregate: 0.88 m3; volume of fine aggregate or sand: 0.44 m3 and cement: 330 kg
Last updated on May 28, 2025
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