Based on orthogonal test method,and by using indoors rutting molding method and coring method,the void rate of both the whole rutting specimens and coring specimens is measured and gradation key sieves and significant test conditions that influence asphalt mixture are comprehensively analyzed.Meanwhile,based on MATLAB 7.0 software,the correlation between void rate of rutting specimens and rate of coring specimens is also determined.It shows that there is a good relationship between them and its correlation ...