Research on the Performance and Mechanism of Nanometer ZnO/SBS Modified Asphalt

Abstract

Three manufacturing technology was performed to add nanometer ZnO into SBS modified asphalt and got nanometer ZnO/SBS modified asphalt.Then we use Electron microscope to analyze the microstructure of the modified asphalt.And we also analyze the mechanism of the modified asphalt by viscosity and IR.The result indicates that if we make nanometer ZnO/SBS modified asphalts by solvent methods,it is possible to make full use of ZnO's benefits,can also make SBS on a micro -meter scale in the modified asphalts,so it can improve the modified asphalts performance in terms of high-temperature stability,low temperature,anti-cracking performance and etc.It is a complex physical and chemical process in making the nanometer ZnO/SBS modified asphalts,the major character of SBS and asphalt is physical reaction,while the major character of nanometer ZnO and SBS is chemical reaction.