7.2.3 - Toughness
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Practice Questions
Test your understanding with targeted questions
Define toughness in the context of aggregates.
💡 Hint: Think about how materials withstand sudden forces.
What does a suitable Aggregate Impact Value indicate for surface courses?
💡 Hint: Relate it to the performance of pavements.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is toughness in aggregates?
💡 Hint: Think about what affects pavement performance the most.
True or False: A lower Aggregate Impact Value is better for surface courses.
💡 Hint: Consider the relation of the value to pavement longevity.
1 more question available
Challenge Problems
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You are tasked with selecting aggregates for a new highway. The project demands high durability due to heavy traffic. How would you evaluate the toughness of the aggregates you're considering?
💡 Hint: Consider combining tests to validate your aggregate choice.
Discuss the long-term implications for a pavement built with aggregates that have an unacceptably high Aggregate Impact Value. What kind of maintenance might be required?
💡 Hint: Relate your answer to economic factors in construction.
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