Study On Adaptability Proportion And Pavement Performance Of Asphalt Mixture In Seasonal And Frozen Region

Asphalt as a pavement material has more than100years of history, road workers made alot of scientific research to has a good working performance, put forward a variety of gradedtype,such as:AC、SMA and so on. From the used effect of currenty,These grade type have theadvantages and disadvantages.The range of AC、SMA grade type is specific stipulated in thepresent existing country norms, These given grade is suitable for all regions of the countryand the variety of materials,but did not fully relect the regional climate characteristics andmaterial characteristics. Therefore,the use of the limits prescribed by the asphalt mixture justmeet norm requirements,not optimal mixing ratio,affect the pavement life.Therefore it isnecessary from the perspective of optimization on the characteristics of the mixture and therelevant materials or climatic, and then put forward for the method of mixture adaptabilityproportion which is suitable for regional characteristics.This article research optimation which is based on the climatic characteristics and thecharacteristics of materials,as the difference of the materials nature and the variouscomponents in the asphalt mixture, which has different affection on the road performance ofasphalt mixture. By researching on the variety composed of different asphalt mixture,the roadperformance of mixture is played fully. The service life of asphalt pavement is effectivelyextend to reduce the purose of engineering maintenance and repairing cost.