Research on Application of Superflex Modified Asphalt in Thin Overlaying of Concrete Pavement

This paper performs experimental research on property of Superflex modified asphalt and mixture,the result shows that the Superflex modified asphalt has higher viscosity,softening point and needle penetration,and the mixture displays merits of good adhesion,good high-temperature stability and strong rutting resistance,etc.The Superflex modified asphalt and mixture can be used in the fields such as stress absorbed layer and thin layer overlaying,etc.in adding AC overlay on PCC pavement projects to prolong the service life of pavement.