26.3.5 - Voids in mineral aggregate VMA
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Practice Questions
Test your understanding with targeted questions
What does VMA stand for?
💡 Hint: Look for the abbreviation commonly used in asphalt design.
What is included in the calculation of VMA?
💡 Hint: Think about what elements in the asphalt mix are 'voids'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does VMA help determine in asphalt mix design?
💡 Hint: Consider what VMA literally stands for.
True or False: A high VMA contributes to insufficient performance of asphalt.
💡 Hint: Reflect on moderation in performance characteristics.
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Challenge Problems
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If an asphalt mix has 5% air voids and 16% bitumen, calculate the VMA and discuss implications if it were reduced to 3% air voids.
💡 Hint: Consider what happens to VMA if air voids decrease.
Discuss how the balance of VMA could influence the lifecycle of a newly laid asphalt roadway under heavy traffic conditions.
💡 Hint: Reflect on the performance under stress and the role of VMA.
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