Abstract
To study the aging degree, aging rate of recycled SBS modified asphalt at different aging time and the difference between the recycled one and the new one, aging nonlinear differential equations of recycled SBS modified asphalt and new SBS modified asphalt are established, aging parameters have been calculated by determining the technical indexes of the recycled SBS modified asphalt and the new one. In addition, aging properties of recycled SBS modified asphalt have been analyzed according to the aging parameters and aging equation. The results show that: the nolinear equation can depict the aging properties of both the recycled SBS modified asphalt and the new one; moreover, during the early period of aging, Various performance of recycled SBS modified asphalt decay more rapidly than new one except ductility, while after aging for a long time, various performance tends to be the same.
Publisher
Trans Tech Publications, Ltd.
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