Research on the performance of SBS/epoxy resin composite modified asphalt
JI Shaoyan
Abstract：The properties of dry process SBS/epoxy resin composite modifier(ER-SBS-T)modified asphalt before and after aging were studied,and compared with dry SBS and fast melting SBS(SBS-T)modified asphalt.The results show that the high temperature performance of SBS and(SBS-T)modified asphalt is better when the content is 6%.High content(12%,15%)ER-SBS-T modified asphalt exhibits the best high-temperature performance before and after aging.The creep recovery rate and unrecoverable creep compliance of ER-SBS-T modified asphalt with a 15%content are optimal both in its original form and after aging.This indicates that the ER-SBS-T modified asphalt pavement can maintain superior resistance to rutting even under pressure aging,high temperature,and heavy load conditions.The low temperature performance of the ER-SBS-T with 15%mixture is poor;ER-SBS-T mainly based on physical miscibility,and the epoxy resin molecules in the modifier were cross-linked and interpenetrating with asphalt molecules to form a spatial network structure that could jointly resist external damage,greatly improving the deformation resistance.
Keywords：asphaltepoxy resinSBSrheological propertyinfrared spectrum
Publication Date：2025-02-24
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 52-58 )