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IS 456 of 2000 gives the modulus of elasticity as _______

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IS 456 of 2000 gives the modulus of elasticity as _______

(a) Ec = 5000 fck^.5

(b) Ec = 5000 fck^2

(c) Ec = 5000 fck^3

(d) Ec = 5000 fck^1/3

I had been asked this question during an internship interview.

Asked question is from Elastic Properties of Aggregates topic in division Elasticity, Creep and Shrinkage of Concrete Technology

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Right choice is (a) Ec = 5000 fck^.5

Easy explanation: IS 456 of 2000 gives the modulus of elasticity as Ec = 5000 fck^.5 where Ec is the modulus of elasticity in N/mm^2.

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