Consider the following statements:
Modulus of elasticity of concrete is
1. tangent modulus
2. secant modulus
3. proportional to $\sqrt{f_{c k}}$
4. proportional to $1 / \sqrt{f_{c k}}$
Which of these statements are correct?

1 and 3 only

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1 and 4 only

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2 and 3 only

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2 and 4 only

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Solution

The correct option is C 2 and 3 only
The modulus of elasticity most commonly used in practice is secant modulus. It decreases with increase in strength.

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Consider the following statements: Modulus of elasticity of concrete is 1. tangent modulus 2. secant modulus 3. proportional to √fck 4. proportional to 1/√fck Which of these statements are correct?

The correct option is C 2 and 3 onlyThe modulus of elasticity most commonly used in practice is secant modulus. It decreases with increase in strength.

Consider the following statements:
Modulus of elasticity of concrete is
1. tangent modulus
2. secant modulus
3. proportional to $\sqrt{f_{c k}}$
4. proportional to $1 / \sqrt{f_{c k}}$
Which of these statements are correct?

The correct option is C 2 and 3 only
The modulus of elasticity most commonly used in practice is secant modulus. It decreases with increase in strength.