Quantifying segregation in heaps: an experimental study

The phenomena of segregation of nonhomogeneous particulate materials is a troublesome and common occurrence in the process industries. The work presented is a report of an experimental study of segregation in heap formation together with a statistical analysis of the results which compares several methods of quantifying the segregation that occurs. Of the nine quantifiers investigated, one method based on the work of Rollins et al. gave an indication of “structure” in the sample variance.