3.6.4 - Acceptance Criteria
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Practice Questions
Test your understanding with targeted questions
What is the minimum percent of MDD for subgrade compaction?
💡 Hint: Think about how compaction standards are set for layers.
What is MDD short for in soil compaction?
💡 Hint: Consider what MDD measures.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the required percentage of MDD for subbase layers?
💡 Hint: Think about load-bearing requirements.
True or False: The acceptance criteria for subgrade is lower than that of the base layers.
💡 Hint: Remember their roles in the pavement structure.
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Challenge Problems
Push your limits with advanced challenges
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.
💡 Hint: Remember the percentage ranges for each layer.
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%.
💡 Hint: What are the consequences of inadequate support for additional layers?
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