松香树脂对SBS改性沥青的性能影响  

Effect of Rosin Resin on Properties of SBS Modified Asphalt

作　　者：晏明 罗蓉[1] 冯光乐 YAN Ming;LUO Rong;FENG Guangle(School of Transportation,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2020年第6期1081-1084,1090,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：交通运输部建设科技计划项目资助(2014318J22120)。

摘　　要：文中基于表面自由能理论计算沥青与集料之间的结合能,分析松香树脂对SBS改性沥青和集料黏附性的影响.采用室内旋转薄膜烘箱试验模拟SBS改性沥青的老化过程,研究不同含量的松香树脂对SBS改性沥青的抗老化性能影响.通过动态剪切流变仪中的多重应力蠕变恢复(MSCR)试验,研究了松香树脂对SBS改性沥青抵抗永久变形能力的影响.结果表明:松香树脂能提高SBS改性沥青的抗老化性能,增大了SBS改性沥青的抵抗永久变形的能力,同时也提高了SBS改性沥青与集料的黏附性.Based on the surface free energy theory,the bonding energy between asphalt and aggregate was calculated,and the influence of rosin resin on the adhesion between SBS modified asphalt and aggregate was analyzed.The aging process of SBS modified asphalt was simulated by indoor rotating film oven test,and the effects of rosin resin content on the aging resistance of SBS modified asphalt were studied.The effect of rosin resin on the resistance to permanent deformation of SBS modified asphalt was studied by multiple stress creep recovery(MSCR)test in dynamic shear rheometer.The results show that rosin resin can improve the anti-aging performance of SBS modified asphalt,increase the permanent deformation resistance of SBS modified asphalt,and improve the adhesion between SBS modified asphalt and aggregate.

关 键 词：松香树脂 SBS改性沥青 黏附性 永久变形能力 

分 类 号：U414[交通运输工程—道路与铁道工程]