In order to explore the performance of bright color asphalt pavement,different amounts of sili-cone-polypropionate(SMP)were selected to modify the bright color asphalt,and carries out three indexes and Brookfield viscosity test.The performance of different graded asphalt mixture is analyzed by rutting test wheel tracking test,low temperature beam bending test,immersion Marshall test and freeze-thaw split-ting test.The results show that SMP modifier can improve the viscosity of the modified bright colored as-phalt with the increase of the SMP content.In addition in AC(SK70),AC(SBS),CSMA,COGFC four graded types of asphalt mixture,COGFC bright color asphalt mixture has the best rut resistance,and SMP modifier has a certain improvement on the low temperature performance of colored asphalt mixture,but SMP modifier will have adverse effects on the water stability of colored asphalt mixture.
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