Research On Interlocking-filling Gradation And Shear Performance Of Asphalt Mixture

The rut is one of the highway asphalt pavement failure form. It is first cause that the shear distortion of asphalt mixture result in asphalt pavement appearance rut ,especially semirigid base asphalt pavement is domination Much research about asphalt mixture high temperature stability serve aggressive the function at home or abroad.But the rut problem is compare prevalence and has a strong impact on the regular service of the asphalt pavement. For enhanceing anti-high temperature distortion of asphalt mixture ,the paper study interlocking-filling gradation asphalt mixture optimum design and asphalt mixture shear performance.Mineral aggregate is proceeded vibratory compaction test by vibrostand for researching interlocking-filling effect between differ particle size. Use for referencethe clue of the Multilevel dense built-in grading. and in order to the void volume least,compactness most,form interlocking structure, the paper ascertains filled grain and proportion of differ coarse aggregate;it compiles interlocking-filling software and put foward a sort of grading design method. The pavement performance proven that interlocking-filling gradation asphalt mixture has excellent performance and can applying engineering practice.In this paper ,a kind of rational and practicable shearing test apparatus is developed and put forward shear performance experimentation and evaluating indicator Through the shearing test to study anti-shear performance of asphalt mixture with different peripheral pressure,velocity,temperature,aggregate gradation,asphalt content,particle size and differ pitch. Through comparing to the shearing test and the rutting test, the both has favorable relativity...