SEPARATION OF AGGREGATE FROM ASPHALT CONCRETE USING PULSED POWER TECHNOLOGY
Keywords:
Pulsed power technology, Asphalt concrete, Modified asphalt, Recycled aggregateAbstract
In this paper, authors propose a pulsed power application to separate aggregate from asphalt
concrete. This study aims at extracting asphalt binder from asphalt concrete specimens using pulsed power
technology and evaluating the quality of the asphalt concrete recycled aggregate and residues. Pulsed power was
discharged into 5% asphalt content straight and modified asphalt concrete specimens. The results demonstrate
that the extraction of modified asphalt binder from asphalt concrete is more difficult than that of straight asphalt
and also requires more energy to produce approximately 1% asphalt content recycled coarse aggregate.
Furthermore, the results suggest that recycled aggregate quality increases with increasing pulsed power energy.