Which aggregate property most directly indicates resistance to wear in concrete pavement surfaces?
Correct answer: C. Aggregate abrasion resistance
- A. Aggregate surface texture
- B. Aggregate water absorption
- C. Aggregate abrasion resistance
- D. Aggregate particle shape
Explanation
Abrasion resistance shows how well aggregate withstands rubbing and traffic wear. Water absorption, texture and shape also affect concrete performance, but they do not directly measure resistance to surface wear.
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Concrete technology covers cement, aggregates, water and admixtures, including their properties, proportioning and effect on fresh and hardened concrete. It explains workability, water-cement ratio, setting, hydration, strength, durability, curing, mix design and common defects, while distinguishing segregation and bleeding from general loss of workability.
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