Comparative study between concrete waste and rooftile waste as coarse aggregates replacement on marshall properties of ashpalt concrete-wearing course (AC-WC)

This study aims to compare the Marshall properties of Asphalt asphalt Concrete-Wearing Course (AC-WC) by replacing coarse aggregate with concrete waste and rooftile waste as a substitution. The research was conducted by Marshall test of AC-WC using variations 0%, 20%, and 40% concrete waste and rooftile waste of coarse aggregate. Based on the results of the study, it was found that the comparison of AC-WC Marshall properties with the replacement of concrete waste and rooftile waste is: the addition of concrete waste or rooftile waste tends to increase the value of stability and VMA(Void in Mineral Aggregate), Stability and VMA of the AC-WC tend to be higher in the addition of rooftile waste than concrete waste; the addition of concrete waste tends to increase flow and VIM (Void In the Mix), while the addition of rooftile waste tends to decrease flow and VIM, Flow and VIM of AC-WC tend to be higher in addition of concrete waste than rooftile waste; then the addition of concrete waste tends to decrease VFWA (Void Filled With Asphalt) and MQ (Marshall Quotient), while the addition of rooftile waste tends to increase VFWA and MQ, VFWA and MQ AC-WC tends to be higher in the addition of rooftile waste than concrete waste. Research on the utilization of concrete waste and rooftile waste as a partial replacement for coarse aggregate in the AC-WC asphalt mixture will reduce waste that pollutes the environment.