Practice Acceptance Criteria (3.6.4) - Soil Compaction Techniques - Pavement Materials

Practice: Acceptance Criteria

Lesson 3.6.4Soil Compaction Techniques

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10 questions

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4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the minimum percent of MDD for subgrade compaction?
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Think about how compaction standards are set for layers.
Question 2.
What is MDD short for in soil compaction?
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Consider what MDD measures.
3Question 3.
What is the required percentage of MDD for subbase layers?
- 90-95%
- 95-100%
- 80-85%
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Think about load-bearing requirements.
4Question 4.
True or False: The acceptance criteria for subgrade is lower than that of the base layers.
- True
- False
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Remember their roles in the pavement structure.
Question 5.
You are tasked with designing a highway pavement. Your laboratory tests indicate the Modified Proctor MDD is 140 lbs/ft³. What are the compaction requirements for each layer? Discuss the impact of not meeting these requirements.
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Remember the percentage ranges for each layer.
Question 6.
Given the soil compaction percentage data from a recent construction site, analyze the potential risks to pavement longevity if the subbase was only compacted to 92% of MDD, whereas it should have been 95-100%.
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What are the consequences of inadequate support for additional layers?

6 more questions in this section. Enroll free to practise them all.