The Aging Regeneration of SBS Modified Asphalt and Effectiveness Evaluation after Additives 

Zhiwu LI, Hengshan WU

University of South China, Hengyang, 421000, China

Abstract: SBS modified asphalt used in road materials is characterized by favorable features (including high temperature performance, low temperature performance and fatigue resistance), which can be used in various climate conditions such as hot, cold, moist and warm weather. The wide use of SBS modified asphalt brings about a large number of SBS modified asphalt aging, which will enable it to meet the road requirements and meet the needs of the era and country through regeneration. After simulating the aging of SBS modified asphalt by RTFOT and PAV experiments, adding different doses of regenerate and testing basic performances by experiments, it proves that the creative act of adding SBS modifier provides new ideas for aging regeneration.

Keywords: Aged SBS modified asphalt; Aging regeneration; Characteristic performance; SBS modifier.