Practice Aggregate Gradation And Its Importance (6.3) - Road Aggregates

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6 sample questions

Question 1.
What does 'gradation' refer to in aggregate terms?
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Think about how the sizes of rocks are arranged.
Question 2.
What type of gradation provides maximum density?
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It’s not open or gap graded.
3Question 3.
What is the purpose of aggregate gradation?
- To enhance color
- To ensure proper compaction
- To increase weight
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Think about how tightly packed something needs to be.
4Question 4.
True or False: Open graded aggregates are used to maximize weight.
- True
- False
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Consider what water does in aggregates.
Question 5.
Given a specific traffic load and environmental conditions, design a suitable aggregate gradation strategy for a new pavement project.
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Balance traffic needs with water management.
Question 6.
Evaluate the advantages and disadvantages of selecting open graded aggregates for a major highway compared to dense graded aggregates. Provide your conclusions.
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What compromises exist between drainage and load capacity?

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