| 沥青改性剂对沥青混合料疲劳性能影响研究 |
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| 引用本文： | 孙志林,黄晓明,张锐,王艳.沥青改性剂对沥青混合料疲劳性能影响研究[J].公路交通科技,2008,25(4):33-36. |
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| 作者姓名： | 孙志林 黄晓明 张锐 王艳 |
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| 作者单位： | 东南大学,交通学院,江苏,南京,210096 |
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| 基金项目： | 江苏省公路科学研究计划资助项目(04Y022) |
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| 摘 要： | 针对4种沥青改性剂路孚8000、TPS、Sasobit、SBS,利用控制应变的小梁疲劳试验,在一定的应变量下,研究各种改性剂对沥青混合料疲劳性能的影响。研究结果表明,无论何种剂量的路孚8000、TPS和SBS改性剂,对沥青混合料疲劳性能均有较大的改善,TPS和SBS改善效果较显著,尤其是TPS;SBS的疲劳寿命与基质沥青相比也增加了3倍以上。而对于Sasobit,在以一定应变为控制模式的疲劳试验中得出的结果是疲劳寿命减小。对于改性剂路孚8000和TPS,随着改性剂剂量的加大,沥青混和料疲劳寿命逐渐加大。
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| 关 键 词： | 道路工程 沥青改性剂 疲劳试验 疲劳寿命 |
| 文章编号： | 1002-0268(2008)04-0033-04 |
| 修稿时间： | 2006年12月26 |
Study on Effect of Asphalt Modifier on Asphalt Mixtures Fatigue Performance |
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| SUN Zhi-lin,HUANG Xiao-ming,ZHANG Rui,WANG Yan.Study on Effect of Asphalt Modifier on Asphalt Mixtures Fatigue Performance[J].Journal of Highway and Transportation Research and Development,2008,25(4):33-36. |
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| Authors: | SUN Zhi-lin HUANG Xiao-ming ZHANG Rui WANG Yan |
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| Abstract: | The fatigue performance of the asphalt mixtures modified by the four types of additives LF8000,TPS,Sasobit,SBS were studied by the fourpoint bending beam fatigue tests in the same strain.The laboratory research shows that,the three types of additives LF8000,TPS,SBS all can improve the mixtures fatigue performance,and TPS and SBS can improve them more effectively,especially TPS;the fatigue lives of the mixtures modified by SBS are improved three times as well;while the adverse answer is gotten when using Sasobit as modifier;the fatigue lives of the mixtures modified by LF8000 and TPS are gradually improved with the improvement of modifier doses. |
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| Keywords: | road engineering asphalt modifier fatigue test fatigue life |
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