石墨烯对橡胶粉改性沥青混合料路用性能影响研究  

Research on the Effect of Graphene on Pavement Performance of Rubber Powder Modified Asphalt Mixture

作　　者：孟勇军[1,2,3,4] 张瑞杰 刘直荣 郭贺源 容洪流 MENG Yong-jun;ZHANG Rui-jie;LIU Zhi-rong;GUO He-yuan;RONG Hong-liu(College of Civil Engineering and Architecture,Guangxi University,Nanning 530004,China;Key Laboratory of Disaster Prevention and Engineering Safety of Ministry of Education,Nanning 530004,China;Guangxi Key Laboratory of Disaster Prevention and Engineering Safety,Nanning 530004,China;Special Geological Highway Safety Engineering Technology Research Center of Guangxi,Nanning 530004,China)

机构地区：[1]广西大学土木建筑工程学院,南宁市530004 [2]工程防灾与结构安全教育部重点实验室,南宁市530004 [3]广西防灾减灾与工程安全重点实验室,南宁市530004 [4]广西特殊地质公路安全工程技术研究中心,南宁市530004

出　　处：《公路》2021年第5期7-11,共5页Highway

基　　金：国家自然科学基金项目,项目编号51968006;广西高等教育本科教学改革工程项目,项目编号2019JGB100。

摘　　要：为研究石墨烯对橡胶粉改性沥青混合料路用性能的影响,采用电动荧光显微镜(E-FM)及傅里叶变换红外光谱仪(FT-IR)分析石墨烯复合橡胶改性沥青的微观形态,并结合马歇尔稳定度试验、车辙试验、冻融劈裂试验、浸水马歇尔试验和单轴压缩试验对石墨烯复合橡胶改性沥青混合料的高温稳定性、水稳定性以及抗变形能力进行研究。试验结果表明:荧光图像中,石墨烯复合橡胶改性沥青的荧光图像分散均匀,表明加入石墨烯后橡胶改性沥青更加稳定;红外光谱图中,掺加石墨烯后吸收峰强度有所增强,并出现了新的吸收峰;掺加石墨烯,提高了橡胶改性沥青混合料的高温稳定性、水稳定性以及抗变形能力。In order to study the effect of graphene on the pavement performance of rubber powder modified asphalt mixture,electrodynamic fluorescence microscopy(E-FM)and Fourier transform infrared spectrometer(F TIR)are used to analyze the micro-morphology of graphene composite rubber modified asphalt,and the Marshall stability test,rutting test,freeze-thaw splitting test,immersion Marshall test and uniaxial compression test are carried out to study the high-temperature stability,water stability and deformation resistance of graphene composite rubber modified asphalt mixture.The results show that in the fluorescence image,the fluorescence image of graphene composite rubber modified asphalt is homogeneous dispersion,which shows that the rubber modified asphalt is more stable after adding graphene;in the infrared spectrum,the absorption peak intensity is enhanced after adding graphene,a nd new absorption peak appears;the high temperature stability,water stability and deformation resistance of rubber modified asphalt mixture are improved by adding graphene.

关 键 词：橡胶改性沥青 石墨烯 荧光扫描试验 红外光谱试验 路用性能 

分 类 号：TU535[建筑科学—建筑技术科学]