Physical-mechanical and mineralogical-petrographical characteristics of the diabases at the locality “Udovo” (Vardar Zone, Republic Macedonia)

The diabases from the Udovo locality (Vardar area, Republic of Macedonia) have been analyzed in order to determine the possibility of their utilization as construction stone. The analyses and the laboratory tests have been performed on samples of diabases and quartz keratophyre. The samples were taken from the surface layers. The results from their physical and mechanical analyses showed that these rocks meet the requirements for their utilization as construction stone suitable for all fractions of asphalt – concrete, concrete aggregate, material for compaction of roads, stone dust and other application in the civil engineering related to the traffic infrastructure. Additionally, the quality of the stone is higher in the deeper parts of the terrain, where the external influences have little effect