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NDT Tests on Hardened Concrete

Rebound hamme...

Question

Rebound hammer test is useful for determination of ________ of hardened concrete.

A

Permeability

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B

Compressive strength

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C

Tensile strength

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D

Shear strength

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Solution

The correct option is B Compressive strength
Schmidt hammer, also known as swiss hammer or concrete hammer, is a device to measure the elastic properties or strength of concrete, mainly surface hardness and penetration resistance.

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Similar questions

Q. Consider the following statements related to 'non-destructive testing' of concrete:
1. Indentation test is used to assess the quality of concrete.
2. The Resonant Frequency Method is based on a laboratory test.
3. Compressive strength of concrete is estimated through Pulse Velocity Measurement.
4. Dynamic Modulus of Elasticity is determined by a Sonometer Test.
5. Thickness of concrete can be estimated by in-situ Rebound Hammer Test.
Which of the above statements are correct?

Q. Which one of the following is employed to determine the strength of hardened concrete of an existing concrete structure ?

Q. Which of the following tests is not a test for evaluating workability of concrete ?

Q. On which of the following is the working principle of concrete hammer for non-destructive test based?

Q. Consider the following statements:
Ultrasonic pulse velocity test is to measure the strength of concrete is
1. used to measure the strength of wet concrete.
2. used to obtain estimate of concrete strength of finished concrete elements.
3. a destructive test.
4. a non-destructive test.
Which of these statement is/are correct?

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