春风和塔河减压渣油调合生产优质道路沥青的研究

STUDY ON HIGH QUALITY ROAD ASPHALT FROM CHUNFENG AND TAHE HEAVY OIL

通过对北疆春风环烷基稠油和南疆塔河重质原油减压渣油性质研究,发现两种减压渣油具有显著不同的组成和性质,二者调合具有很好的互补性,四组分匹配更趋合理。调合沥青针入度随塔河减压渣油加入量的增加呈现先增大后减小的趋势,选择适宜针入度的原料及调合比例,可以制备出不同牌号且高低温性能优异的A级道路沥青。工业试验产品性质不仅符合A级沥青技术指标要求,而且产品软化点、动力黏度(60℃)、延伸度(10℃)、薄膜烘箱试验后残留针入度比均明显高于指标要求。通过试验路验证调合沥青路用性能优良,与同类沥青相比表现出更好的使用性能。

By studying the properties of vacuum residues of Chunfeng crude in Southern Xinjiang and Tahe crude in the North of 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.