Civil Engineering > GATE 2014 SET-2 > Concrete Technology
The target mean strength fcm for concrete mix design obtained from the characteristic strength fck and standard deviation σ, as defined in IS:456-2000, is
A
fck + 1.35σ
B
fck + 1.45σ
C
fck + 1.55σ
D
fck + 1.65σ

Correct : d

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