Synthesis and characterization of novel bitumen additive based on waste oils for enhanced asphalt performance

This research focuses on the synthesis and evaluation of novel bitumen additives aimed at improving the performance and durability of asphalt materials. The synthesized additives were characterized using spectroscopic and thermal analysis techniques, such as FTIR and TGA, to determine their structural and thermal properties. Modified bitumen samples were prepared by incorporating different concentrations of the synthesized additive, and their physical, mechanical, and rheological properties were investigated through penetration, softening point, ductility, flash point and dynamic shear rheometer (DSR) tests. Experimental results indicated that the additive significantly enhances the high-temperature stability, reduces temperature susceptibility, and improves the rheological performance of bitumen. Specifically, modified bitumen exhibited increased resistance to rutting, aging, and oxidative degradation compared to conventional bitumen. This improvement in bitumen performance can lead to extended pavement life, reduced maintenance costs, and enhanced sustainability in road construction.