The Los Angeles abrasion test of an aggregate primarily measures its resistance to:
Correct answer: C. Wear and impact in service
- A. Weathering by repeated wetting and drying
- B. Shape deformation during compaction
- C. Wear and impact in service
- D. Absorption of bitumen during mixing
Explanation
The Los Angeles abrasion test evaluates aggregate toughness and resistance to abrasion and impact caused by traffic and handling. It does not directly measure moisture durability, particle shape, or bitumen absorption. Those properties require different tests.
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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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