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| 以表观粘度为参数建立沥青老化动力学模型 | |
| 引用本文： | 郭江庆,马莉骍,韩国俊,朱国军.以表观粘度为参数建立沥青老化动力学模型[J].国外建材科技,2008,29(6). |
| 作者姓名： | 郭江庆 马莉骍 韩国俊 朱国军 |
| 作者单位： | 1. 湖北省随岳中高速公路建设管理处,随州,441300 2. 武汉生物工程学院建筑系,武汉,430000 3. 北京新桥技术发展有限公司,北京,100101 |
| 基金项目： | 湖北省交通科技攻关项目 |
| 摘 要： | 介绍了沥青的老化机理,研究了2种基质沥青老化后表观粘度的变化,以表观粘度为参数建立了沥青一级老化动力学模型,并用该动力学模型对这2种沥青的抗老化性能进行了研究,求得了动力学参数。实验结果表明,这2种沥青老化后表观粘度均升高,AH-70沥青抗老化性能优于AH-90沥青。以表观粘度为参数建立的沥青老化动力学模型较好地表征了沥青老化过程。 |
| 关 键 词： | 老化 动力学 表观粘度 道路沥青 |
Asphalt Aging Kinetic Model Based on Apparent Viscosity |
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| GUO Jiang-qing,MA Li-xin,HAN Guo-jun,ZHU Guo-jun.Asphalt Aging Kinetic Model Based on Apparent Viscosity[J].Science and Technology of Overseas Building Materials,2008,29(6). | |
| Authors: | GUO Jiang-qing MA Li-xin HAN Guo-jun ZHU Guo-jun |
| Abstract: | The aging of asphalt have attracted great attention worldwide from both academic and industrial points of view.The mechanisms of aging of asphalt were described in this paper.The changes of apparent viscosity of two road asphalt samples were studied and a first order aging kinetic model based on apparent viscosity data was set up to investigate the anti-aging performance of two road asphalts,AH-70 and AH-90.The results showed that the apparent viscosity of asphalt increased after aging;the anti-aging performance of AH-70 asphalt was better than that of AH-90 asphalt;the aging process of road asphalt could be expressed by said aging kinetic model,and kinetic parameters were obtained. |
| Keywords: | aging kinetics apparent viscosity road asphalt |
| 本文献已被 维普 万方数据 等数据库收录！ | |