5.2.2.2 - Impact Strength (Aggregate Impact Value - AIV)
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Practice Questions
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What does AIV stand for?
💡 Hint: Think about how it describes what the aggregate can withstand.
Why is a lower AIV considered better?
💡 Hint: Remember, we want aggregates that won't break easily!
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a lower Aggregate Impact Value indicate?
💡 Hint: Think about what it means for how long something lasts.
True or False: An Aggregate Impact Value of 25% is ideal for concrete used in pavements.
💡 Hint: Recall our discussion about preferred values for AIV.
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Challenge Problems
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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?
💡 Hint: Consider options for replacement aggregates or adjustments to the mix.
Evaluate how environmental conditions might influence the selection of aggregates with respect to their AIV.
💡 Hint: Think about how time and weather can impact materials.
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