Abstract: By studying the properties of vacuum residues of Chunfeng crude in Southern Xinjiang and Tahe crude in Northern Xinjiang, it was found that two kinds of vacuum residues had distinct compositions and properties, the blending bitumen had good complementarity, and the matching of four components was more reasonable. According to the study of blending regulation, the penetration degree of blending asphalt increased first and then decreased with the increase of Tahe residual oil content. Selecting raw materials and blending ratio with suitable penetration could produce grade A road asphalts with excellent high and low temperature performance. The properties of the industrial product not only met the requirements of grade A asphalt specifications, and the softening point, dynamic viscosity(60℃), ductility(10℃), penetration ratio were all higher than the requirements. The road test showed that the blending bitumen prepared by two kinds of vacuum residues from Chunfeng and Tahe had a better performance than similar asphalt products.

Key words: chunfeng heavy oil, Tahe heavy oil, complementarity, blending, high quality paving, pavement performance