A concrete surface that becomes dusty because the cement paste is weak and easily abraded is commonly described as
Correct answer: D. Dusting
- A. Curling
- B. Scaling
- C. Crazing
- D. Dusting
Explanation
Dusting is the formation of a weak, powdery surface layer that can result from excess water, poor finishing or inadequate curing. Scaling is the flaking of surface layers, crazing is fine random cracking, and curling is slab deformation.
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About Concrete Technology
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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