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Question

Consider the following statements concerning 'elasticity of concrete'.
1. Stress-strain behaviour of concrete is a straight line up to 10% of ultimate stress.
2. Strain determination is obtained from tangent modulus.
3. Modulus of elasticity of concrete is also called as secant modulus.
Which of the above statements are correct?

A
1,2 and 3
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B
1 and 3 only
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C
1 and 2 only
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D
2 and 3 only
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Solution

The correct option is B 1 and 3 only
Strain determination is obtained from secant modulus. So, option (b) is correct.

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