Polyurethane concrete is a new type of paving material. Research on the recycling of reclaimed polyurethane concrete is of great significance to the promotion and application of this material. Firstly, reclaimed polyurethane concrete is prepared by simulating the aging of polyurethane concrete indoors;secondly, seven kinds of reclaimed polyurethane concrete ratios of 0％, 25％, 30％, 35％, 40％, 45％and 50％ are used to formulate the AC-13 SBS modified asphalt recycled reclaimed polyurethane concrete;thirdly, the road performance of SBS modified asphalt recycled reclaimed polyurethane concrete with different reclaimed polyurethane concrete ratios is evaluated; lastly, the adhesive properties of the three kinds of interfaces, SBS asphalt-limestone, SBS asphalt-aging polyurethane and aging polyurethane-limestone, are tested, and the reasons for the impact of reclaimed polyurethane concrete on the road performance are analyzed comparatively. The results show that, in addition to 50％ reclaimed polyurethane concrete ratio of SBS modified asphalt recycled reclaimed polyurethane concrete, the remaining six kinds all meet the relevant technical requirements, and with the increase of reclaimed polyurethane concrete ratio, its high-temperature performance is weakened while the low-temperature performance and water stability enhancement; SBS asphalt-aging polyurethane and aging polyurethane-limestone interfacial adhesion performance is better than that of SBS asphalt-limestone.
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