Abstract
Rejuvenator is an oil that can be added during asphalt production to restore Reclaimed Asphalt Pavement (RAP) binder. Ten potential locations for rejuvenator addition in asphalt plant were ranked in terms of pavement performance, plant operation, and environmental safety. A full scale production was performed to compare rejuvenator addition to cold RAP on conveyor belt versus addition to hot RAP in mixer (video https://youtu.be/LYBq93e8BG0). Mixture test results indicated that spraying of rejuvenator onto cold RAP facilitates rejuvenator diffusion in RAP binder resulting in improved asphalt fatigue and crack propagation resistance. Both addition locations generated equal organic carbon emissions from asphalt plant.
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