21.3 - Summary
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Practice Questions
Test your understanding with targeted questions
What is subgrade soil?
💡 Hint: Refer to how subgrade contributes to pavement.
What does the CBR test measure?
💡 Hint: Think about how we assess soil strength.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of the CBR test?
💡 Hint: Think about what characteristics of soil are measured.
The Plate Load test is used to determine the:
💡 Hint: Consider what happens to the soil under load.
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Challenge Problems
Push your limits with advanced challenges
Design a pavement structure considering a subgrade soil with a CBR value of 3%. What thickness of pavement would you recommend to ensure durability?
💡 Hint: Refer to engineering guidelines that correlate CBR values with pavement thickness.
Evaluate how seasonal changes might affect the results of the Plate Load Test conducted on clayey soil.
💡 Hint: Consider the physical properties of clay and how moisture impacts them.
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Reference links
Supplementary resources to enhance your learning experience.