Practice Impact Strength (aggregate Impact Value - Aiv) (5.2.2.2) - Aggregates – Properties, Grading, Testing

Practice: Impact Strength (Aggregate Impact Value - AIV)

Lesson 5.2.2.2Aggregates – Properties, Grading, Testing

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8 questions

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2 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does AIV stand for?
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Think about how it describes what the aggregate can withstand.
Question 2.
Why is a lower AIV considered better?
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Remember, we want aggregates that won't break easily!
3Question 3.
What does a lower Aggregate Impact Value indicate?
- Higher durability
- Lower strength
- No impact on quality
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Think about what it means for how long something lasts.
4Question 4.
True or False: An Aggregate Impact Value of 25% is ideal for concrete used in pavements.
- True
- False
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Recall our discussion about preferred values for AIV.
Question 5.
You have been tasked with selecting aggregates for a new concrete road. The project specifications highlight an AIV requirement of below 20%. You discover the aggregates available have an AIV of 22%. How would you handle this situation?
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Consider options for replacement aggregates or adjustments to the mix.
Question 6.
Evaluate how environmental conditions might influence the selection of aggregates with respect to their AIV.
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Think about how time and weather can impact materials.

4 more questions in this section. Enroll free to practise them all.