EN
The paper presents results of investigation carried out on compaction ability of coarse grained burnt colliery spoils from “Wesoła” mine. The work was aimed at determining the infl uence of granulation, compaction energy and diameter of Proctor’s apparatus mould on compactibility parameters of colliery spoils. Compactibility parameters were determined with the use of standard and middle-size Proctor’s apparatus at 2 compaction energies.