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Q: As per IS 383:2016, the maximum crushing value of coarse aggregates used for runways and other wearing surfaces shall be______ percentage.
  • A. 10
  • B. 30
  • C. 50
  • D. 12
Correct Answer: Option B - Aggregate crushing value–As per IS 383:2016, the maximum crushing value of coarse aggregates used for runways and other wearing surfaces shall be 30 percentage. For aggregates to be used in concrete other than for wearing course is 45%. 2. Aggregate abrasion value– • For aggregate to be used in concrete for wearing surfaces is 30%. • Other than for wearing surfaces is 50%.
B. Aggregate crushing value–As per IS 383:2016, the maximum crushing value of coarse aggregates used for runways and other wearing surfaces shall be 30 percentage. For aggregates to be used in concrete other than for wearing course is 45%. 2. Aggregate abrasion value– • For aggregate to be used in concrete for wearing surfaces is 30%. • Other than for wearing surfaces is 50%.

Explanations:

Aggregate crushing value–As per IS 383:2016, the maximum crushing value of coarse aggregates used for runways and other wearing surfaces shall be 30 percentage. For aggregates to be used in concrete other than for wearing course is 45%. 2. Aggregate abrasion value– • For aggregate to be used in concrete for wearing surfaces is 30%. • Other than for wearing surfaces is 50%.