| 基质沥青标号对SBS改性沥青低温性能的影响 |
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| 引用本文： | 曹丽萍,董泽蛟,谭忆秋,孙立军.基质沥青标号对SBS改性沥青低温性能的影响[J].公路交通科技,2005,22(12):13-16. |
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| 作者姓名： | 曹丽萍 董泽蛟 谭忆秋 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试验室,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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| 基金项目： | 国家自然科学基金资助项目(50008005) |
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| 摘 要： | SBS改性沥青的低温性能受到基质沥青标号、油源和改性剂结构、掺量的共同影响。基质沥青的标号是一个重要的影响因素。为此,以动态剪切流变仪(DSR)实测的玻璃化转变温度(Tg)为评价指标,针对线型SBS改性沥青,分析了不同掺量下基质沥青的标号对SBS改性沥青低温性能的影响。结果表明,基质沥青的标号对低温性能有重要影响,这种影响受到改性剂掺量的限制,掺量越大,影响越大。
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| 关 键 词： | 基质沥青标号 玻璃化转变温度Tg SBS改性沥青低温性能 动态剪切流变仪 |
| 文章编号： | 1002-0268(2005)12-0013-04 |
| 收稿时间： | 2004-08-27 |
| 修稿时间： | 2004年8月27日 |
Influence of the Grade of Base Asphalt on Low Temperature Performance of SBS Modified Asphalt |
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| CAO Li-ping,DONG Ze-jiao,TAN Yi-qiu,SUN Li-jun.Influence of the Grade of Base Asphalt on Low Temperature Performance of SBS Modified Asphalt[J].Journal of Highway and Transportation Research and Development,2005,22(12):13-16. |
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| Authors: | CAO Li-ping DONG Ze-jiao TAN Yi-qiu SUN Li-jun |
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| Abstract: | The low temperature performance of SBS(styrene-butadiene-styrene) modified asphalt is influenced by the grade and source of base asphalt and the structure and content of modifier.The grade of base asphalt is an important influence factor,as a result,the influence of base asphalt's base on the low temperature performance of SBS modified asphalt was analyzed for the linear SBS modified asphalt with different contents of modifier,using the glass transition temperature(Tg) that was tested by dynamic shear rheometer as evaluation index.The result indicates that the grade of base asphalt has very important influence on the low temperature performance of SBS modified asphalt and this influence is dependent on the content of modifier and that the more the content is the greater the influence. |
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| Keywords: | Grade of base asphalt Glass-transition temperature Low temperature performance of SBS modified asphalt Dynamic Shear Rheometer |
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