Abstract：To predict the reclaimed performance of aged SBS modified asphalt, a composite law equation model was established to describe the performance relationship between reclaimed SBS modified asphalt with new and old asphalt. Base asphalt, modified asphalt and recycling agent were used to recovery the performance of aged SBS modified asphalt. Viscosity, penetration, softening point and ductility were tested to calculate the viscosity deviation index by solving the composite rate equation. The properties of aged SBS modified asphalt reclaimed by different ways were compared. The results show that the reclaimed performance of aged SBS modified asphalt can be predicted well by the composite rate equation. Base asphalt and recycling agent have good regeneration effect on viscosity, softening point and penetration of aged SBS modified asphalt, while the modified asphalt has good regeneration effect on ductility.
2014, Vol. 35 
