Impact of building stone type on selection of materials for the construction machinery parts

Abstract

Results of experimental investigations of four types of rock aggregates are presented in this paper. Those aggregates were analyzed from the aspect of their influence on wear of the working parts of different machines used for their preparation and deposition on roads. The four most important types of building stones, limestone, dolomite marble, calcite-dolomite marble and andesite, exploited from deposits in Republic of Serbia, were considered, since those aggregates are convenient for certain layers of the driveway constructions on roads, streets, airports and as the base layer on railways. In selection of rocks for depositing on roads, it is necessary to know both their general and specific properties. For that purpose, it was necessary to conduct the mineralogical-petrographic and physical-mechanical investigations. In addition, the wear resistance was checked both on samples taken directly from the rock material as well as from the stone aggregates.