A Study On The Method Of The Skeleton-cogging Framework Design Of The Asphalt Mixture

The asphalt concrete road was widely applied to the high grade road surface because of its one's own merit such as comfortable driving and easy to repair. However, along with the development of national economy, there were lots of dilapidations forms on the asphalt roads for the volume of traffic increases rapidly, the channeling running, and overloading seriously , etc. But the design methods' limitations of asphalt mixture of the Superpave and the Marshall were unveiled little by little. So in order to satisfying the needs in the highway construction the design methods of the asphalt concrete need to be optimized peremptorily in the existing criterion.Aimed at optimizing the limitations of the existing design methods of the asphalt concrete in the highway in China, This text is around pilesing up the properties and optimize the pitch and mix this thread of design method of match ratio of material according to collecting the material , different pitch in three mixes the design method of match ratio of the material through adopting, and mix at five kinds ore materials than when go on by physics, mechanics performance tests a series of. System but analyzing pitch mix the composition material, form and they influence the characteristics of structure to the intensity of concretes of material all-sidely, and the pitch mixes the structure parameter of material to its way of influence of using performance . To mix ore material grades of theory of mixing material to further investigate, it and set up material grades of mathematics model that mix for less than ore, Determine it is disconnected to appraise ore inlay lock propose and mix the spaces of broken stone lead with one by the foundations of characteristic by material and a bit material for thickness to collect Design method. At last through at traditional Marshall design method and Superpave pitch that method compound mix material carry on way compares with and analyses with performance, The result shows , adopt and mix thick, detailed piling up and inlay lock cooperate withpitch who proportion compound mix material have high temperature stability and impervious swimming skill can a good one relatively by ore material that characteristic choose according to one, its surface is coarse, and it is better to resist slippery performance.At last through comparing with SHRP mix curve compound pitch mix the distances of material use performance by penalty area upper, middle and lower different the ones of positions, have verified the existence of SHRP's penalty area.