The modulus of subgrade reaction used in rigid pavement analysis is commonly represented by the ratio of:
Correct answer: A. Contact pressure to the corresponding slab deflection
- A. Contact pressure to the corresponding slab deflection
- B. Traffic volume to the available road width
- C. Bitumen content to aggregate gradation
- D. Concrete strength to its curing period
Explanation
The modulus of subgrade reaction, commonly denoted by k, is the pressure applied to the subgrade divided by the resulting deflection. It represents the supporting response of the foundation beneath a concrete slab.
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About Transportation Engineering
Transportation engineering covers highway planning and alignment, traffic studies, road geometric design, pavement materials and flexible or rigid pavement construction. It also includes railway, airport and traffic engineering concepts such as sight distance, superelevation, signals, capacity and level of service, distinguishing pavement failure from poor geometric design.
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