Study on the Influencing Factors of Rutting Resistance of Asphalt Mixture at Fiber Micro-surface
In this study,the influencing factors of rutting resistance of asphalt mixture at fiber micro-surface were deeply discussed,aiming to provide a scientific basis for the design and construction of asphalt mixture at micro-surface.Through the comprehensive analysis of the effects of fiber type,fiber content and grade pairing on the rutting resistance of asphalt mixture at the micro-surface,it was found that polypropylene fiber significantly improved the rutting resistance compared with basalt fiber,especially when the fiber content reached 0.2%,the mixture showed the best performance.The study also pointed out that appropriate grading and needle flake content are very important to optimize the rutting resistance of the mixture,and the coarser gradation and lower needle flake content can enhance the rutting resistance of the mixture to a certain extent.
road engineeringmixing materialsmicro-surfaceresistance to ruttingrate of change in wheel width