彩色道路沥青老化动力学研究  

AGING KINETICS OF COLORED PAVING ASPHALT

作　　者：高明[1] 肖斌[2] 廖克俭[1] 丛玉凤[1] 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001 [2]湖北江汉油田江钻股份基建办,湖北潜江433123

出　　处：《石油化工高等学校学报》2005年第1期24-27,共4页Journal of Petrochemical Universities

摘　　要：　考察了所配制的70#和90#两种彩色道路沥青在老化过程中正戊烷沥青质的变化;并依据老化过程中正戊烷沥青质的变化,进行了彩色沥青老化动力学研究,得出了有关动力学参数,得到了两种彩色沥青老化动力学方程,其理论计算值与实际试验数据基本吻合,表明彩色道路沥青老化属于一级动力学反应。结果表明,70#彩色沥青反应活化能(Ea=4.483×104J·mol-1)比90#彩色沥青反应活化能(Ea=4.322×104J·mol-1)高,反应速度常数较小,具有较低的老化速率和较好的抗老化性能。The changes of n-pentane asphaltene content of two colored paving asphalt (70#, 90#) that made by ourselves were investigated during aging process. Aging kinetics of colored asphalt based on the change of n-pentane asphaltene content was studied as well. Some correlative kinetic parameters and the aging kinetics equation of colored paving asphalt were obtained. The calculated value by the equation accords with the experimental data, which shows that the aging of colored paving asphalt is a first-order reaction. The result indicates that colored paving asphalt of 70# (Ea = 4.483 × 104 J·mol-1) has higher reaction active energy than 90# (Ea= 4.322 × 104 J·mol-1), smaller constant of reaction velocity, lower aging velocity and better aging resistance performance than those of colored paving asphalt of 90.

关 键 词：彩色道路沥青 正戊烷沥青质 动力学 老化 

分 类 号：TE626.86[石油与天然气工程—油气加工工程]