In a concrete pavement, dowel bars at a transverse joint are primarily provided to:
Correct answer: A. Transfer wheel loads across the joint
- A. Transfer wheel loads across the joint
- B. Increase surface friction during rain
- C. Prevent all thermal expansion of concrete
- D. Replace the need for longitudinal drainage
Explanation
Dowel bars transfer load from one slab to the adjoining slab while permitting the joint to open and close. They do not prevent thermal movement or serve as drainage elements.
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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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