Integration of Geological, Petrographic and Abrasion Resistance Data of the Gneisses from Santa Catarina Granulithic Complex: An Application in the Road Paving Sector

Among the factors that contribute to adequate performance of aggregates, abrasion resistance these materials stands out, a parameter strongly related mineral composition rock. Therefore, this work aims analyze and integrate data from Los Angeles tests petrographic analysis gneisses Santa Catarina Granulithic Complex in order understand characteristics can interfere or control results, such as: composition, texture, mineralogical alterations, granulometry microfractures. The was developed four stages: (1) field activities, where descriptions outcrops quarries studied were performed, focusing on characterization compositional, textural structural aspects rocks, addition sample collection photographic survey; (2) petrography via conventional optical microscope BSE images semi quantitative by electron microscope; (3) test samples (4) their integration with data. Two main lithologies, enderbitic tonalitic gneiss identified. results showed crushed aggregates (gneiss) Gaspar Quarry presented lowest values, followed Vale Selke, Rio Branco 1001 quarries. Regarding an average loss 17.2%, while 17.7%. (high content mafic minerals), texture presence localized microfractures contributed higher values found quarry 1001. However, both lithologies present acceptable view specifications regulatory services, DNIT (031/2006) (141/2010). study shows good correlation between result data, showing is determining factor results.