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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 b 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 b 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 b 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%.