Particle breakage in Construction Waste (CW) induced by compaction

One parameter of crucial importance is the susceptibility to particle breakage, since it directly influences the behaviour of the material in terms of resistance and permeability. This study evaluated particle breakage in CW, induced by compaction through the application of standard and modified energy. In order to do that, the material was divided into fractions of different particle sizes.

Then, the influence of each of the following factors was analysed: energy, grain size, mineralogy, moisture content and the density of the sample. The results indicated that the occurrence of particle breakage is directly related to the mineralogical composition, and that the largest fraction studied was the one that suffered the smallest particle breakage. Additionally, the results indicated that the density of compaction of the sample also has significant influence on the process of particle breakage.