Evaluation of size reduction process for rock aggregates …
10%Following that, the crushed particles were sieved through an 11.2-mm sieve, and the S20 brittleness index was determined by the following equation: {S}_ {20}=left ( {m}_1/ {m}_0right)times 100 (2) where m0 is the initial sample mass (g), and m1 is the mass of crushed particles passing through the 11.2-mm sieve (g).