Heavy loaded asphalt pavements must withstand formation of permanent deformations and cracking caused by temperature changes and fatigue. Ordinary paving grade bitumen has limited range of service temperatures. To expand range of service temperatures on most cases some costly polymeric materials like SBS are added. With this study we proved that addition of waste materials can be almost equivalent solution to improved asphalt properties. The PMMA/ATH – poly-methyl methacrylate (PMMA) filled with a fine dispersion aluminium trihydrate (ATH) is a composite used as a substitute for many indoor household ceramics. Processing and various polishing stages generate a considerable amount of waste powder. Mechanical properties of PMMA/ATH powder proved suitable for bitumen modification. Results of the study show that PMMA/ATH composite dust improves the performance of asphalt at high temperatures. Despite the advantages of PMMA/ATH composite dust on asphalt performance at high temperatures, it does not show a considerable influence on the low temperature performance of asphalt.

asphalt mixture; composite dust; deformation; cracking; high temperature