Abstract:Based on the consolidation of fly ash in whole or in part to replace the ore as asphalt mixture were analyzed, experiments show that when the micro powder replace the mineral powder, the physical properties, water stability and high temperature stability of the mixture were improved, get the best replacement rate to replace the mineral powder. By using the method of multistage extraction process, the existing state of heavy metals in asphalt mixture was analyzed, the experimental results further prove the long-term stability of heavy metals in the asphalt mixture. This paper provides some theoretical guidance for the stabilization and utilization of MSWI fly ash.