| 两种道路沥青老化动力学研究的比较 |
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| 引用本文： | 袁德明,康蕾,廖克俭,丛玉凤,闫锋.两种道路沥青老化动力学研究的比较[J].化学工业与工程,2008,25(1):44-47. |
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| 作者姓名： | 袁德明 康蕾 廖克俭 丛玉凤 闫锋 |
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| 作者单位： | 辽宁石油化工大学,石化学院,辽宁,抚顺,113001 |
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| 摘 要： | 为了更加直观地了解废旧橡胶粉改性沥青的老化过程，通过旋转薄膜烘箱试验，比较了基质沥青和改性沥青的老化温度和软化点随着老化时间的变化情况。同时以软化点为参数建立老化动力学模型来反映两种沥青的老化情况，并计算出活化能。试验结果表明胶粉改性沥青的活化能高于基质沥青，表明其抗老化性能得到提高。并对沥青的老化机理进行了探讨。
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| 关 键 词： | 软化点 废橡胶粉 沥青 老化动力学 老化机理 |
| 文章编号： | 1004-9533（2008）01-0044-04 |
| 收稿时间： | 2007-02-06 |
| 修稿时间： | 2007年2月6日 |
Aging Kinetics of Two Kinds of Roading Asphalt |
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| YUAN De-ming,KANG Lei,LIAO Ke-jian,CONG Yu-feng,YAN Feng.Aging Kinetics of Two Kinds of Roading Asphalt[J].Chemical Industry and Engineering,2008,25(1):44-47. |
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| Authors: | YUAN De-ming KANG Lei LIAO Ke-jian CONG Yu-feng YAN Feng |
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| Affiliation: | (School of Petrochemical Technology,Liaoning University of Petroleum ＆ Chemical Technology, Fushun 113001, Liaoning Province,China) |
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| Abstract: | In order to analyze the aging process of crumb tire rubber modified asphalt, the rolling thin film oven test was performed and the changes of softening point and aging temperature along with aging time were compared between base asphalt and modified asphalt. Based on parameter of softening point, aging kinetics model was established to show aging condition of two asphalts and to calculate activation energies. The results indicated that activation energy of crumb tire rubber modified asphalt was higher than that of base asphat. This improved the anti-aging properties were improved. At last, the aging mechanism of two asphalts was discussed. |
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| Keywords: | softening point crumb tire rubber asphalt aging kinetics aging mechanism |
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