GATE CE 2016 Set 1 — Question 46
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Structural Engineering → Construction Materials → Creep & Shrinkage
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Question
For M25 concrete with creep coefficient of 1.5, the long-term static modulus of elasticity (expressed in MPa) as per the provisions of IS:456-2000 is ________
Correct answer
9999 to 10001
Solution
The short-term static modulus of elasticity () for concrete is given by the formula from IS 456:2000:For M25 grade concrete, the characteristic compressive strength MPa.The long-term static modulus of elasticity () considering the effect of creep is given by:where is the creep coefficient. Given :Thus, the long-term static modulus of elasticity is 10000 MPa.
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