Which treatment is normally applied between an existing bituminous layer and a new bituminous layer to promote bonding?
Correct answer: D. A tack coat
- A. A fog spray
- B. A prime coat
- C. A seal coat
- D. A tack coat
Explanation
A tack coat is a light application of bituminous material used to bond successive bituminous layers. A prime coat is generally applied to an absorbent granular base before the first bituminous layer.
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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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