Composite Analysis And Evaluation Of Road Asphalt Performance

Along with the rapid development of economy, China’s highway career also developedrapidly, especially the development of the highway made remarkable achievements. As themain pavement of expressway asphalt pavement forms, there are a lot of pavement diseases,such as rutting, cracks and water damage, etc. Road asphalt, therefore, as an important roadasphalt roadbed construction materials, the good is directly related to the performance of theasphalt surface quality, so the research on its performance is very important. This papermainly analyses the road performance of asphalt and evaluation.This article mainly through to the five kinds of matrix asphalt and five kinds of SBSmodified asphalt performance of high temperature and low temperature performance, thermalperformance and aging performance of four aspects to do the analysis of asphalt performanceindicators. Asphalt material multiple indicators, first starting from the merits of eachperformance of matrix asphalt and SBS modified asphalt has carried on the superiority andinferiority ranking, and then summarizes the four performance of asphalt, puts forward arough comprehensive evaluation criteria of asphalt performance, mainly for a variety ofasphalt indoor test, through the analysis of the experimental data for the asphalt road useperformance, the evaluation method of asphalt. First is for the same label (70#)5kinds ofmatrix asphalt and5kinds of SBS modified asphalt in the high temperature, low temperature,aging performance analysis and evaluation, analyzes the aging law of asphalt, including thechanging rule of the asphalt after aging, the three indexes and the changing rule of the asphaltafter aging components, and analyzes the composition of asphalt and asphalt performancerelationship. Followed by the evaluation index of the asphalt combined analysis of the meritsof the asphalt performance, put forward a kind of comprehensive performance evaluation ofasphalt simple criteria, in order to distinguish the pros and cons of asphalt. Finally through tothe road performance of asphalt mixture, it is concluded that the scoring method in evaluatingthe feasibility of road asphalt performance, for our country on the evaluation of theperformance of asphalt to provide a feasible method for reference.