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Standard Testing Methods

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Questions and Answers

What is the purpose of the sieve used in the slump test?

To remove large aggregate particles (correct)
To mix the concrete
To compact the concrete
To measure the slump of the concrete

What is the minimum thickness of the metal mold used in the slump test?

0.060 in. (correct)
1.15 mm
1.5 mm
0.045 in.

What is the shape of the mold used in the slump test?

Frustum of a cone (correct)
Rectangular
Cylindrical
Triangular

What is the purpose of rodding in the slump test?

To compact the concrete (D) Signup and view all the answers

What is the range of slumps for which the test method is considered applicable?

Between 1⁄2 in. and 9 in. (B) Signup and view all the answers

What is the purpose of raising the mold in the slump test?

To measure the slump of the concrete (B) Signup and view all the answers

What is the reference document for the practice of sampling freshly mixed concrete?

Practice C 172 (A) Signup and view all the answers

What is the purpose of the caution note in the test method?

To exercise caution in interpreting results for concretes with slumps less than 1⁄2 in. or greater than 9 in. (A) Signup and view all the answers

What is the material requirement for the mold used in the slump test?

Metal not readily attacked by the cement paste (A) Signup and view all the answers

What is the measurement reported as the slump of the concrete?

The vertical distance between the original and displaced position of the center of the top surface of the concrete (C) Signup and view all the answers