碳纳米管/SBS复合改性沥青路用性能研究  

Study on Pavement Performance of Carbon Nanotubes/SBS Composite Modified Asphalt

作　　者：黄子义 刘攀 HUANG Ziyi;LIU Pan(Usu Tianshan Road & Bridge Co., Ltd., Usu 833000, Xinjiang, China;Chongqing Zhixiang Paving Technology Engineering Co., Ltd., Chongqing 401336, China)

机构地区：[1]乌苏市天山路桥有限责任公司,新疆乌苏833000 [2]重庆市智翔铺道技术工程有限公司,重庆401336

出　　处：《公路交通技术》2019年第1期24-29,共6页Technology of Highway and Transport

基　　金：重庆市社会民生科技创新专项项目(cstc2015shmszx1126)

摘　　要：为了研究碳纳米管/SBS复合改性沥青的路用性能,将碳纳米管和SBS小颗粒混合掺杂后加入沥青中,制备碳纳米管/SBS复合改性沥青,通过改变碳纳米管掺量来研究改性沥青的针入度、软化点、延度、黏度及车辙因子等指标,并测试了混合料的综合性能。试验结果表明,碳纳米管只有与SBS协同使用才能更好地发挥作用;当碳纳米管掺量为0. 15%时,SBS改性沥青的高温性能及低温性能均得到了增强;碳纳米管/SBS复合改性沥青具有优异的抗变形和抗车辙能力,其混合料具有良好的路用性能。In order to study the pavement performance of carbon nanotubes/SBS composite modified asphalt,carbon nanotubes and SBS,small particles were mixed and added into asphalt.The penetration,softening point,ductility,viscosity and rutting factor of modified asphalt with different dosage of carbon nanotubes were tested,and then performance of carbon nanotubes/SBS composite modified asphalt mixture was tested.The results showed that only by combining with SBS,carbon nanotubes could effectively improve asphalt's performance.When carbon nanotubes dosage was 0.15%,high temperature stability and low temperature stability of SBS modified asphalt were enhanced.Carbon nanotubes/SBS composite modified asphalt had excellent anti-deformation or anti-rutting ability,and its mixture had good pavement performance.

关 键 词：道路工程 碳纳米管 复合改性沥青 动态剪切流变仪 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]