| SBS/岩沥青复合改性沥青基本性能研究 |
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| 引用本文： | 潘若妤,孙晓民,陈彦先,陆晓中.SBS/岩沥青复合改性沥青基本性能研究[J].重庆交通学院学报,2009(3). |
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| 作者姓名： | 潘若妤 孙晓民 陈彦先 陆晓中 |
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| 作者单位： | 北京化工大学材料科学与工程学院;北京石油化工学院材料科学与工程系; |
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| 摘 要： | 通过SBS/岩沥青复合改性沥青的三大性能指标研究,分析了岩沥青和SBS的用量比变化对改性沥青性能的影响规律。结果表明:在改性沥青中有效成分用量不变的情况下,随着其中岩沥青用量比例的不断增大,改性沥青针入度的变化不大;改性沥青的软化点呈明显下降的趋势,即岩沥青与SBS复合改性对提高软化点的效果不如单独应用SBS的效果好;改性沥青的延度呈明显下降的趋势,且改性沥青的15℃延度的下降程度更为显著。适量添加岩沥青可在一定程度上提高SBS在基质沥青中的分散性。
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| 关 键 词： | 道路工程 改性沥青 复合改性 岩沥青 SBS 软化点 针入度 延度 |
Fundamental Performance of SBS/Gilsonite Composite Modified Asphalt |
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| PAN Ruo-yu,SUN Xiao-min,CHEN Yan-xian,LU Xiao-zhong.Fundamental Performance of SBS/Gilsonite Composite Modified Asphalt[J].Journal of Chongqing Jiaotong University,2009(3). |
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| Authors: | PAN Ruo-yu SUN Xiao-min CHEN Yan-xian LU Xiao-zhong |
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| Institution: | PAN Ruo-yu1,SUN Xiao-min2,CHEN Yan-xian2,LU Xiao-zhong2(1.School of Material Science & Engineering,Beijing University of Chemical Technology,Beijing 100029,China,2.Department of Material Science & Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China) |
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| Abstract: | The influence rule of the proportion of SBS/gilsonite on performance of modified asphalt is studied,through the research of three major performance indexes of SBS/gilsonite composite modified asphalt.The results show that: with a constant amount of active ingredient in modified asphalt,the penetration of modified asphalt changes little when the proportion of gilsonite increases;the softening point of modified asphalt shows a downward trend,that is to say,the effect of composite of gilsonite and SBS on the i... |
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| Keywords: | road engineering modified asphalt composite modification gilsonite SBS softening point penetration ductility |
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