Influence of engineering properties on Polished Stone Value (PSV): A case study on basic igneous rocks from Serbia

Abstract Polished Stone Value (PSV) is one of the main factors in estimating the quality of aggregates used for wearing courses. It reflects the aggregate micro roughness, which is important for skid resistance and safe driving. In this study the relationship between PSV and other engineering properties of basic igneous rocks from Serbia, and their aggregates is elaborated. The studied rocks are dense and hard with low porosity and water absorption and with high resistance to wear abrasion and fragmentation as well as to frost action, with wide range of PSV (46–77). Regression analysis shows strong correlations between PSV and porosity and water absorption, as well as between PSV and the fragmentation and abrasion resistance. The proposed models could be used in engineering practice for predictions of PSV of basic rocks used for road surface aggregates. Recommended limits for the model application for open porosity, water absorption and Los Angeles are up to 3%, 2% and 25%, respectively.