Rheological Characterization of Reclaimed Asphalt Binder Blended with The Neat And Sbs-pma Binders

Reusing reclaimed asphalt pavement material guarantees a substantial optimization of non-renewable resources, emissions reduction, and decreasing landfill space, along with the economic benefits associated saving costs purchasing transporting new aggregate binder for concrete mixture production. This study aims to investigate influence aged from on virgin binder’s rheological properties. Therefore, different dosages RAP (20%, 30%, 40% by weight total mix) were blended neat (40-50), penetration grade (P40), SBS polymer (SBS-PMA) binder. Using both traditional Superpave performance testing methods, effects blend's consistency, viscosity, softening, elastic recovery, rutting (permanent deformation), fatigue cracking, low temperature cracking evaluated. The results revealed that decreased value SBS-PMA binders. viscosity softening point increased increase in content, whereas they SBS-PMA. decreases recovery. where experienced little improvement recovery when test deteriorates at high, intermediate, temperatures. With addition 20%, RAP, high-temperature PG blends 0.64%, 0.95%, 1.10%, respectively, while low-temperature 23%, 31%, 32%, respectively. In contrast, improves intermediate grades. blends' properties 1.5%, 3.3%, 4.5%, 5%, 11%, 15% summary, depends individual characteristics binders