Practice Over-vibration And Under-vibration (5.2)

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is over-vibration?
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Think about what happens when concrete is vibrated too much.
Question 2.
What is honeycombing?
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What happens if the concrete isn't compacted enough?
3Question 3.
What is the consequence of over-vibration?
- Segregation
- Honeycombing
- Increased strength
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Think about the effects of too much vibration on concrete.
4Question 4.
True or False: Under-vibration can lead to reduced strength in concrete.
- True
- False
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Consider what happens if all the air in concrete isn’t removed.
Question 5.
A construction team consistently over-vibrates during a large concrete pour. Outline a strategy for training the team to avoid this mistake in future projects.
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Think about the balance between education and hands-on practice.
Question 6.
In a cold weather situation, the team rushed the process and under-vibrated. Identify steps that can be taken to address honeycombing in areas already set.
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Consider potential repair methods for existing concrete.

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