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Q: Which application of fine aggregates requires a high level of fineness modulus?
  • A. Plastering
  • B. Concrete pavements
  • C. Roofing
  • D. Structural concrete
Correct Answer: Option A - Fineness Modulus- It is a numerical index of fineness, giving some idea about the mean size of the particles in the aggregates. The object of finding F.M. is to grade the given aggregate for the required strength and workability of concrete mix with minimum cement higher F.M. aggregate result in harsh concrete mixes and lower F.M result in uneconomical concrete mixes plastering is application of fine aggregate required a high level of fineness modulus
A. Fineness Modulus- It is a numerical index of fineness, giving some idea about the mean size of the particles in the aggregates. The object of finding F.M. is to grade the given aggregate for the required strength and workability of concrete mix with minimum cement higher F.M. aggregate result in harsh concrete mixes and lower F.M result in uneconomical concrete mixes plastering is application of fine aggregate required a high level of fineness modulus

Explanations:

Fineness Modulus- It is a numerical index of fineness, giving some idea about the mean size of the particles in the aggregates. The object of finding F.M. is to grade the given aggregate for the required strength and workability of concrete mix with minimum cement higher F.M. aggregate result in harsh concrete mixes and lower F.M result in uneconomical concrete mixes plastering is application of fine aggregate required a high level of fineness modulus