29 - Rigid pavement design
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Practice Questions
Test your understanding with targeted questions
What is the main advantage of rigid pavements compared to flexible pavements?
💡 Hint: Think about their material composition and response to loads.
Define the modulus of sub-grade reaction.
💡 Hint: Consider the behavior of the surface supporting the slab.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary material used for rigid pavements?
💡 Hint: Think about materials that provide strength and durability.
True or False: The modulus of sub-grade reaction is calculated from slab displacement and pressure.
💡 Hint: Remember the relationship between pressure and how much the slab sinks.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A cement concrete pavement of thickness 30 cm needs to be designed to withstand a wheel load of 6000 kg. Calculate the required modulus of sub-grade reaction if the slab shows a deflection of 0.15 cm.
💡 Hint: Focus on the ratio of force to the resultant deflection.
Design a dowel bar system for a joint with 50 cm spacing, assuming a wheel load of 4000 kg. What is the load transfer capacity needed?
💡 Hint: Remember the capacity factor principle we discussed.
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