Research on Effect of the Preparation Process of SBS Modified Xinjiang Asphalt on Low Temperature Performance
In order to explore the influence of preparation process on the low-temperature properties of SBS-modified asphalt,the basic physical properties of SBS-modified asphalt under different preparation processes were tested by four-factor and three-level orthogonal tests,the low-temperature properties of SBS-modified asphalt under different preparation processes were tested by BBR,and the distribution of SBS in asphalt under different preparation processes was explored by fluorescence microscopy.The results show that the shear temperature is the main factor affecting the SBS modified asphalt,and the low temperature performance of the SBS modified asphalt prepared at 200℃is greatly improved compared with the modified asphalt at 170℃and 185℃,and the higher shear temperature makes the SBS fully swell in the asphalt to form a stable network structure,which is conducive to the low temperature performance of the SBS modified asphalt.
SBSmodified asphaltpreparation processlow temperature performance
万方数据
维普
