| 应用玻璃化转变温度评价SBS改性沥青低温性能 |
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| 引用本文： | 曹丽萍,谭忆秋,董泽蛟,孙立军.应用玻璃化转变温度评价SBS改性沥青低温性能[J].中国公路学报,2006,19(2):1-6. |
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| 作者姓名： | 曹丽萍 谭忆秋 董泽蛟 孙立军 |
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| 作者单位： | 1. 同济大学,道路与交通工程教育部重点实验室,上海,200092
2. 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 在分析现有评价SBS改性沥青低温性能方法的基础上,提出了采用玻璃化转变温度Tg来评价SBS改性沥青的低温性能,并对相应的试验仪器(动态剪切流变仪)和试验方法进行了介绍。应用动态剪切流变仪实测了7种SBS改性沥青的Tg,并且进行了相应的沥青混合料试验验证。结果表明:玻璃化转变温度Tg物理意义明确,测试方法简便,与混合料的测试结果相关性较好,适合于评价SBS改性沥青的低温性能。
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| 关 键 词： | 道路工程 SBS改性沥青 试验研究 玻璃化转变温度 低温性能 动态剪切流变仪 |
| 文章编号： | 1001-7372（2006）02-0001-06 |
| 收稿时间： | 2005-05-21 |
| 修稿时间： | 2005年5月21日 |
Evaluation for Low Temperature Performance of SBS Modified Asphalt Using Glass Transition Temperature |
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| CAO Li-ping,TAN Yi-qiu,DONG Ze-jiao,SUN Li-jun.Evaluation for Low Temperature Performance of SBS Modified Asphalt Using Glass Transition Temperature[J].China Journal of Highway and Transport,2006,19(2):1-6. |
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| Authors: | CAO Li-ping TAN Yi-qiu DONG Ze-jiao SUN Li-jun |
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| Institution: | 1. Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 200092, China ;2. School of Traffic Science and Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China |
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| Abstract: | Based on the method evaluating the low temperature performance of SBS modified asphalt at present,the glass transition temperature T_g was recommended to appraise the low temperature performance of styrene-butadiene-styrene(SBS) modified asphalt.Then,the relevant test equipments-dynamic shear rheometer and test methods were introduced.Furthermore,T_g values of seven SBS modified asphalts were tested by dynamic shear rheometer and the results were validated by the low temperature performance of modified asphalt mixture.The result indicates that T_g has a clear physical meaning,handy test method and good relation to the results of asphalt mixture.So T_g is proper to evaluate the low temperature performance of SBS modified asphalt. |
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| Keywords: | road engineering SBS modified asphalt experimental research glass transition temperature low temperature performance dynamic shear rheometer |
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