酸性集料界面改性及对沥青混合料性能影响的研究  

Study on the Performance of New Type Stone Interface Modifier on Crushed Pebble Asphalt Mixture

作　　者：轩杰 耿九光[2] XUAN Jie;GENG Jiuguang(Henan Provincial Traffic Inspection Technology Research Institute Co.,Ltd.,Zhengzhou,Henan 451450,China;Chang'an University,Xi'an,Shaanxi 710000,China)

机构地区：[1]河南省交通检测技术研究院有限公司,河南郑州451450 [2]长安大学,陕西西安710000

出　　处：《公路工程》2023年第5期131-135,共5页Highway Engineering

基　　金：国家自然科学基金项目(51608045)。

摘　　要：酸性集料与沥青黏附性较差,在沥青路面的应用有局限性。采用界面改性剂对酸性集料表面进行改性,并对沥青混合料路用性能进行研究。通过电子扫描镜进行微观分析,采用集料界面改性剂的破碎卵石表面会形成新的物质,增强了集料与沥青的黏附性。经过界面改性剂改性后的沥青混合料路用性能要优于SBS改性沥青+水泥与SBS改性沥青两种试验方案。The acid aggregate has poor adhesion to asphalt,and its application in asphalt pavement is limited.The surface of the acid aggregate was modified by the interface modifier,and the road performance of the asphalt mixture was studied.The microscopic analysis by scanning electron microscope shows that new substances are formed on the surface of the crushed pebbles using the aggregate interface modifier,which enhances the adhesion between the aggregate and the asphalt.The road performance of the asphalt mixture modified by the interface modifier is better than the two test schemes of SBS modified asphalt+cement and SBS modified asphalt.

关 键 词：沥青路面 破碎卵石 界面改性剂 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]