DOI: -

Keywords: Recycled asphalt binder, Bioasphalt, Rejuvenator, Penetration Index, Temperature Susceptibility

ABSTRACT

The effect of using bioasphalt of coconut shell (BTK) and bitutechRAP as recycled asphalt (RA-binder) rejuvenators based on temperature susceptibility (penetration index, PI) is the aims of this study. This RA- binder has a penetration of 10 with the PI value of 0.98, which indicates that the RA-binder has experienced aging with sensitivity to average temperatures. With the bio-asphalt content of 0% to 30%, resulting in an increased penetration value and decreasing softening point, the highest PI value was 1.02 at 20% BTK content (penetration 54), and 0.57 at 16% bitutechRAP content (penetration 58). The content of bioasphalt which produces penetration of 60 – 80, has a smaller PI value, it shows that the increase in the performance of RAbinder using bio-asphalt based on the penetration parameters and the softening point is not in line with the rise in the performance of the RA binder based on PI. However, when compared with pen 60/70 with a PI of -0.31, the PI value of the RAbinder modified by bio-asphalt was better.