Laboratory methods for assessing the segregation of additives tested by Tecaliman

A methodology for assessing segregation may consist of a straightforward comparison of coefficients of variation before and after mechanical or pneumatic transfers (Friedrich and Jansen, 1974 – Tecaliman, 1996a – Wild, 1999). However, this must involve CVhomogeneity values as residual variations can, as usual, hide the actual effects of stimulated factors, and in this case, transfers. Other tests, conducted in a laboratory, can be used to stimulate the effects of segregation using the angle of repose or elutriation, in line with the definitions of these phenomena (Tecaliman, 1996b).