<![CDATA[Asphalt concrete waste in the Materials Laboratory of the Civil Engineering Department at Politeknik Negeri Bandung (POLBAN) reaches approximately 326 kg per year, potentially causing environmental impacts if not managed properly. This research aims to recycle asphalt concrete waste at high contents (50% and 75% of the total asphalt mixture weight) using coconut shell bio-asphalt as a rejuvenator in Asphalt Concrete-Wearing Course (AC-WC) mixtures. These recycled mixtures are intended to be reused as patching materials for road damage within the POLBAN campus. The three mixtures were evaluated using the Marshall method, focusing on determining the optimum asphalt content (OAC), stability, flow, Marshall quotient (MQ), voids in the mix (VIM), immersion index (II), voids in mineral aggregate (VMA), and voids filled with asphalt (VFA). The results showed that the mixture containing 50% asphalt concrete waste with 8.0% bio-asphalt (by asphalt weight) produced an OAC of 5.0%, a stability of 1603.3 kg, a flow of 4.0 mm, and an MQ of 396.9 kg/mm. Meanwhile, the mixture with 75% asphalt concrete waste and 8.0% bio-asphalt achieved an OAC of 4.7%, a stability of 973.8 kg, a flow of 3.8 mm, and an MQ of 255.9 kg/mm. Both mixtures met the 2018 Bina Marga Revision 2 specifications for AC-WC layers. Based on these results, it can be concluded that asphalt mixtures in the POLBAN materials laboratory can be reused as hot mix AC-WC mixtures up to a 75% waste content. This researchtuga demonstrates the potential for utilizing asphalt concrete waste as patching material for campus roads at POLBAN.]]>
Copyrights © 2025
