ACI Concrete- Section 4 with
complete verified solutions
2025(already passed)
The diameter of the tamping rod used in this test method is ________.
- answer 16 mm (5/8") + or - 2 mm (1/16")
What is the required shape of the tamping end of the rod - answer
Rounded to Hemispherical tip
What is the required minimum frequency of the vibrator used in this
test method? - answer 9000 vibrations per minute (150Hz)
The outside diameter or side dimension of the vibrating element
must be at least ______ but not greater than _______. - answer 19 mm
(3/4"), 38 mm (1-1/2")
A plastic container can be used for the measure in this test method.
- answer False, measure must be steel or other suitable metal
What is the minimum thickness of a metal strike-off plate? - answer
6 mm (1/4")
What is the minimum thickness for a glass or acrylic strike-off plate?
- answer 12 mm (1/2")
What is the specified weight of the mallet used on measures that
are 14 L (0.5 cubic feet) or smaller? - answer 600 + or - 200 g (1.25
+ or - 0.5 lbs)
complete verified solutions
2025(already passed)
The diameter of the tamping rod used in this test method is ________.
- answer 16 mm (5/8") + or - 2 mm (1/16")
What is the required shape of the tamping end of the rod - answer
Rounded to Hemispherical tip
What is the required minimum frequency of the vibrator used in this
test method? - answer 9000 vibrations per minute (150Hz)
The outside diameter or side dimension of the vibrating element
must be at least ______ but not greater than _______. - answer 19 mm
(3/4"), 38 mm (1-1/2")
A plastic container can be used for the measure in this test method.
- answer False, measure must be steel or other suitable metal
What is the minimum thickness of a metal strike-off plate? - answer
6 mm (1/4")
What is the minimum thickness for a glass or acrylic strike-off plate?
- answer 12 mm (1/2")
What is the specified weight of the mallet used on measures that
are 14 L (0.5 cubic feet) or smaller? - answer 600 + or - 200 g (1.25
+ or - 0.5 lbs)
