STRUCTURAL AND MORPHOLOGICAL EVOLUTIONS OF PURE AND ITS SBS-MODIFIED ASPHALT BINDERS IN THE ROCESS OF AGING

摘要：

In this paper,the chemical and morphological evolutions of pure asphalt AH70 and its styrene-butadiene-styrene (SBS) modified asphalt PG70 during the laboratory aging were investigated by the Corbett method,Fourier transform infrared (FTIR) and atomic force microscopy (AFM),respectively.It was found that with the increase of the component of asphaltenes and degradation of SBS segments,obvious agglomerates of asphaltenes appeared in both asphalt surfaces after aging,but network structures appeared only in PG70 before aging.In addition,relatively smaller agglomerates displayed in PG70 than in AH70 after aging.

关键词： evolution of aging SBS-modified asphalt FTIR AFM

作者: L.Pang S.P.Wu Y.C.Chen G.J.Zhu

作者单位: Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education,Wuhan Universi Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education,Wuhan Universi

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 403-406

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）