Rheological characterisation of bituminous binder blends for the design of asphalt mixes containing high recycled asphalt content

Reclaimed asphalt pavement (RAP) is gained from road reconstructions; however, its usage less optimised in Hungary and neighbouring regions, since on the project level proportion of RAP mixes only 10-15%. This than recommended other EU countries. The higher provides economic environmental advantages, decreasing need for new materials, transport cost, carbon footprint. composition resultant bituminous binder blend a critical element mix design with high RA content. paper discusses to provide performance compliance characterisation. also presents complex rheological analysis base bitumen, bitumen extracted blend, applying dynamic shear rheometer (DSR) device. It was shown that paving grade (B), polymer modified (PmB) rubber (GmB), addition proportions content possible without compromising blend. With carefully chosen it utilise up 40% For limit 20%. various contents showed no or negligible changes characteristics can reach 30% this case.