天津市每年修建黑色路面近百万平米,需用大量沥青材料。近几年来,由于石油沥青和煤沥青供应日少,需要另找解决途径。大港油田近在呎尺,生产大量多蜡渣油,研究利用大港渣油修筑城市和郊、县路面,可以暂时解决缺乏规格沥青的问题。由于大港渣油存在着含蜡量高(一般在10％左右,高的达20％),延伸度低(在25℃时仅约几厘米),稠度小(C_(60)~(10)=10～20秒)和粘结力差的缺陷,要在路面中应 Tianjin builds nearly a million square meters of black pavement every year, requiring a large amount of asphalt material. In recent years, due to the low supply of petroleum bitumen and coal tar, we need to find another solution. Dagang Oilfield near the foot, the production of large quantities of multi-wax residue, the study of the use of Dagang residual oil to build the city and suburban counties pavement, can be a temporary solution to the problem of lack of standard asphalt. Due to the high wax content (generally around 10% and up to 20%), Dagang residual oil has low degree of elongation (only a few centimeters at 25 ℃) and low consistency (C 60 ~ 10) 10 ~ 20 seconds) and poor adhesion defects, should be in the pavement