28.7 - Pavement Thickness Design Charts
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Practice Questions
Test your understanding with targeted questions
What does CBR stand for?
💡 Hint: Think about what CBR measures.
Which chart do you use for traffic loads of 5 msa?
💡 Hint: Recall the traffic ranges defined earlier.
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Interactive Quizzes
Quick quizzes to reinforce your learning
The CBR is a measure of:
💡 Hint: Think about what the CBR test evaluates.
Using Chart 2 is necessary for traffic loads of:
💡 Hint: Recall which traffic loads correspond to which chart.
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Challenge Problems
Push your limits with advanced challenges
A new highway is expected to carry 100 msa with an average subgrade CBR of 5%. Calculate the required pavement thickness using the appropriate chart and discuss any potential issues with this design.
💡 Hint: Look carefully at the upper limits of traffic loads mentioned in the charts.
If you see a failure in the pavement structure, how would you assess whether the thickness was appropriate? Consider factors like CBR, traffic predictions, and material quality in your response.
💡 Hint: Consider the interplay of design assumptions against actual conditions observed after construction.
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