Practice Voids In Mineral Aggregate Vma (26.3.5)

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9 questions

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6 sample questions

Question 1.
What does VMA stand for?
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Look for the abbreviation commonly used in asphalt design.
Question 2.
What is included in the calculation of VMA?
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Think about what elements in the asphalt mix are 'voids'.
3Question 3.
What does VMA help determine in asphalt mix design?
- Strength of the mix
- Amount of void space
- Color of the asphalt
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Consider what VMA literally stands for.
4Question 4.
True or False: A high VMA contributes to insufficient performance of asphalt.
- True
- False
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Reflect on moderation in performance characteristics.
Question 5.
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.
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Consider what happens to VMA if air voids decrease.
Question 6.
Discuss how the balance of VMA could influence the lifecycle of a newly laid asphalt roadway under heavy traffic conditions.
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Reflect on the performance under stress and the role of VMA.

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