As per IS 456 : 2000 Clasue 22.214.171.124 Page No. 16.
Modulus of elasticity of Concrete can be calculated by following formula:
Ec = 5000 √fck N/mm2
Where Ec is short term static modulus of electricity.
Actual measured values may differ by plus minus 20 % from the values obtained from the above expression.
Q. As per IS 456:2000 , which one of the following correctly expresses the modulus of elasticity of Concrete ?
a) Ec = 0.7 √fck N/mm2
b) Ec = 500 √fck N/mm2
c) Ec = 5000 √ fck N/mm2
d) Ec = 5700√fck N/mm2
Correct Answer is c ) Option.
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