The Research Of The Asphalt Pavement Evaluation Index Of Xinjiang Between The Handing Over And Completion Of Test Datas And The PCI Grade

Highway transportation is the basis for national economy development and a very important symbol of a country's level of modernization. On the basis of the Xinjiang handing over and completion of test datas of the asphalt pavement is the basis of pavement quality. So,it is very senseably to link them together.This paper,according to the geographical location, climate, traffic, road construction materials and other factors of the region in Xinjiang, in-depth studied the causes of the diseases of asphalt pavement systematically based on the asphalt pavement evaluation index. On the basis of the Xinjiang handing over and completion of test datas of the asphalt pavement, links between the them were established with Markov transition probability matrix,and the relationship was analyzed. Meanwhile, according to the test datas--PCI of the asphalt pavement over the years in Xinjiang, the PCI decay curves of age-related changes were drew with the decay equation of the road,which was a basic indicator for the Xinjiang region by which the asphalt pavement were graded.On the basis of the Xinjiang handing over and completion of test datas of the asphalt pavement, links between the them were established with Markov transition probability matrix. The new PCI grade of asphalt pavement standards were established accordingly.