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3 cards from this section. Quick, good the night before a test.
What shape should aggregates ideally be in the surface course?
Think about how they fit together.
For the sub-base course, what is the maximum allowable abrasion value?
Consider the levels below the base course.
What is the maximum abrasion value for surface course aggregates?
Consider how much wear they will experience.
Is angular shape preferred for base course aggregates?
Think about how they fit together.
Design a mix for a new roadway that experiences heavy traffic. Outline the aggregate types and properties you would recommend.
Consider the traffic load and weather conditions.
Discuss potential methods to test aggregates to ensure they meet the specified selection criteria.
Refer back to the section on standard tests covered.
5 more questions in this section. Enroll free to practise them all.
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