Three indexes to characterise crushing and screening of reclaimed asphalt pavement

The more reclaimed asphalt pavement (RAP) is used in production, the properties of depend on characteristics RAP. Crushing and sieving RAP into different fractions are most means processing that can allow ensuring consistency desired produced mixture. Currently, however, there no method to compare methods. Here we propose three indexes evaluate crushing screening – Chunk index, Breakdown Filler increase index (CBF indexes). These derived from black white grading curves and, therefore, be practical use for producers. Through full-scale validation with four crushers, found a quantitative comparison methods optimise configuration particular crusher. A calculation tool attached paper.