Research progress on the application of colored asphalt pavement materials
The colored asphalt pavement has become a research hotspot in recent years due to its advantages of guiding traffic flow,re-lieving fatigue,visual warning,coordinating environment and alleviating urban heat effects.In this paper,the characteristics of several binders used in colored asphalt pavement,including decolorized asphalt,light colored synthetic binders,epoxy resin,polyurethane,and acrylic resin were compared and analyzed and the research progress in their modification were reviewed.In addition,the types and characteristics of pigments and aggregates used in colored asphalt pavement were also introduced.Based on factors such as material per-formance,environmental benefits and construction controllability,the two-component epoxy resin binder was recommended to use,and suggestions were made for improving its toughening and UV aging resistance.
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