SSC JE Civil Engineering 23-Mar-2021 Shift 2 Paper

Question : 162 of 200

Marks: +1, -0

In a cement concrete work mixed in proportion 1 : 2 : 4 (cement : fine aggregate : coarse aggregate) by volume, the fine aggregate is observed to have a bulking of 10%. If the correction for bulking is NOT applied, what will be the actual dry fine aggregate in the concrete mix proportion?

$1.1/2$
$2×1.1$
$2/1.1$
$2×1.1^2$

Validate

Solution:

Proportion 1 : 2 : 4 (cement : fine aggregate : coarse aggregate)
Bulking of fine aggregate = 10%
According to proportion, let
The volume of cement = 1
The volume of fine aggregate = 2
The volume of coarse aggregate = 4
In case bucking is not considered the actual dry fine aggregate in the concrete mix

= 2/1.1

per volume of cement

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