Aging mechanism and effective recycling ratio of SBS modified asphalt

With the increase of road service life, SBS (styrene–butadiene–styrene block copolymers) modified asphalt waste materials are being discarded. Taking advantage of these waste pavement surfacing materials will not only reduce the pollution of the environment, but also save resources. This paper analyzes the aging mechanism of SBS modified asphalt through macroscopic examination and microcosmic analysis using conventional performance indicators:...