| 基于动态力学分析S／B比对SBS改性沥青的影响 |
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| 引用本文： | 孟勇军,张肖宁.基于动态力学分析S／B比对SBS改性沥青的影响[J].科学技术与工程,2007,7(23):6110-6115. |
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| 作者姓名： | 孟勇军 张肖宁 |
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| 作者单位： | 1. 哈尔滨工业大学交通科学与工程学院,哈尔滨,150090
2. 华南理工大学交通学院,广州,510640 |
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| 摘 要： | 为了检验SBS聚合物改性剂中的嵌段比S/B对改性沥青的影响,在实验室用不同的S/B比的SBS改性剂与基质沥青配伍,对获得的试样进行动态力学性能测试。通过试验发现由于SBS中存在的聚丁二烯(B)和聚苯乙烯(S)的两相分离结构,不同的S/B比对基质沥青的改性有明显的不同。在保证其他条件一致的情况下,为了更好地利用改性沥青,提出了沥青路面可以针对不同的铺筑需要有目的地选用不同S/B制备的改性沥青。
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| 关 键 词： | 道路工程 嵌段比 动态力学试验 SBS改性剂 频率扫描 重复蠕变 |
| 文章编号： | 1671-1819(2007)21-6110-06 |
| 修稿时间： | 2007-08-24 |
Influence of SBS Modified Asphalt by Different Block Proportion Based on Dynamic Mechanical Analysis |
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| MENG Yong-jun,ZHANG Xiao-ning.Influence of SBS Modified Asphalt by Different Block Proportion Based on Dynamic Mechanical Analysis[J].Science Technology and Engineering,2007,7(23):6110-6115. |
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| Authors: | MENG Yong-jun ZHANG Xiao-ning |
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| Institution: | School of Science and Engineering on Communication. Harbin Institute of Technology. Harbin, 150090 P.R. China; College of Traffic and Communications, South China University of Technology. Guangzhou, 510641 P.R. China |
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| Abstract: | In order to verify influence of different block proportion S/B on effect of SBS modified asphalt, the dynamic mechanical performance tests were performed to the samples composed of different kinds of SBS with base asphalt. It is found that different S/B values fix on different modified effect, due to biphasic separate fabric of polybutadiene and polystyrene in SBS. On the conditions that are same, SBS modified asphalt with different S/B values can be used for different pavement construction demands to get an intelligent use. |
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| Keywords: | road engineering block proportion dynamic mechanical test SBS modifier frequency sweep repeat creep |
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