Practice Shape Tests (6.5.5) - Road Aggregates – Requirements and Types
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Shape Tests

Practice - Shape Tests

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the Flakiness Index measure?

💡 Hint: Think about the shape of the particles.

Question 2 Easy

What is the ideal Flakiness Index for surface courses?

💡 Hint: Recall the standard guidelines for road aggregates.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the Flakiness Index measure?

The size of aggregates
The proportion of flaky particles
The overall weight of aggregates

💡 Hint: Think about what contributes to the shape of the aggregate.

Question 2

True or False: A high Elongation Index indicates better aggregate performance.

True
False

💡 Hint: Recall how shapes fit together in pavement.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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?

💡 Hint: Think about how shapes affect pavement stability.

Challenge 2 Hard

Calculate the potential impact on pavement performance if the aggregate’s Flakiness and Elongation Index exceed recommended limits. Discuss possible long-term consequences.

💡 Hint: Reflect on the roles of shape in loading situations.

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