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ACI Certification Section 3ACI Certification Section 3.

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ACI Certification Section 3ACI Certification Section 3.ACI Certification Section 3ACI Certification Section 3.

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  • June 22, 2024
  • 2
  • 2023/2024
  • Exam (elaborations)
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ACI Certification Section 3
1 inch - ANS-How deep should the tamping rod penetrate into each layer?

1.5 inches - ANS-The slump test is applicable to plastic concrete with a maximum size
aggregate of ...

1/4 inch - ANS-The slump of the concrete is measured and reported to the nearest ...

12 inches - ANS-The height of the slump mold is ...

2 5/8" and 6 1/8" - ANS-The approximate concrete depth (in vertical distance) after placing the
first layer is _______ , and the second layer is ________.

2.5 minutes - ANS-How much time is allowed to conduct the slump test from beginning to
completion?

25 - ANS-Rod each layer _______ times uniformly over the cross section with the rounded end
of the rod.

3 equal - ANS-The slump mold is filled in _______ layers.

5 plus or minus 2 seconds - ANS-How much time is allowed for lifting the slump mold?

add additional concrete to create an excess - ANS-What must be done if the concrete drops
below the top of the slump mold while the top layer is being rodded?

C172/C172m - ANS-The sample of concrete for use in making the slump test must be obtained
in accordance with practice ...

False - ANS-After the final rodding, the sides of the slump mold should be tapped lightly with the
tamping rod. True or False.

False - ANS-The interior surface of the slump mold is allowed to have minor irregularities. True
or False.

False - ANS-The slump mold should be in a dry condition before beginning the test. True or
False.

flat, moist, non-absorbent and rigid - ANS-The surface on which the slump mold will be placed
must be ...

frustum of a cone - ANS-The mold for making the slump test is in the shape of ...

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