2.9.1 - Definition
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Practice Questions
Test your understanding with targeted questions
What does the California Bearing Ratio (CBR) test measure?
💡 Hint: Think about how we assess soil strength.
What is the formula for calculating CBR?
💡 Hint: Consider the comparison aspect of the test.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does CBR stand for?
💡 Hint: Focus on what the acronym represents in technical terms.
A higher CBR value indicates stronger soil.
💡 Hint: Consider what CBR measures.
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Challenge Problems
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If a soil sample supports 3000 lbs and the standard crushed stone supports 20000 lbs, calculate the CBR.
💡 Hint: What formula do you use to relate these values?
Discuss the implications of a CBR value of 5% for a highway layer. What construction practices might be required?
💡 Hint: What strategies can enhance subgrade strength?
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