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2 cards from this section. Quick, good the night before a test.
What does the Flakiness Index measure?
Think about the shape of the particles.
What is the ideal Flakiness Index for surface courses?
Recall the standard guidelines for road aggregates.
What does the Flakiness Index measure?
Think about what contributes to the shape of the aggregate.
True or False: A high Elongation Index indicates better aggregate performance.
Recall how shapes fit together in pavement.
You have two aggregate samples: Sample A with an FI of 10% and EI of 12%, and Sample B with an FI of 20% and EI of 30%. Which sample would you recommend for high-load pavement, and why?
Think about how shapes affect pavement stability.
Calculate the potential impact on pavement performance if the aggregate’s Flakiness and Elongation Index exceed recommended limits. Discuss possible long-term consequences.
Reflect on the roles of shape in loading situations.
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