Question

The flakiness index (in percent) of coarse aggregate is normally

• A. above 75
• B. between 50 and 75
• C. upto 25
• D. between 25 and 50

Answer 1

The correct option is C upto 25

Limit of flaky particles in the mixes is 25 %. If the flaky particles are greater than 25 % then the aggregate is considered undesirable for the intended use.

Limit of elongated particles in the mixes is 45 %. Thus, if the elongated particles are greater than 45 %, then the aggregate is considered undesirable for the intended use.