| 废橡胶粉改性沥青的微观结构与流变特性 |
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| 引用本文： | 张淑艳,崔亚楠,董新峰. 废橡胶粉改性沥青的微观结构与流变特性[J]. 新型建筑材料, 2011, 38(2) |
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| 作者姓名： | 张淑艳 崔亚楠 董新峰 |
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| 作者单位： | 内蒙古工业大学土木工程学院,内蒙古,呼和浩特,010051 |
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| 基金项目： | 内蒙古自然科学基金项目 |
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| 摘 要： | 采用扫描电镜(SEM)及动态力学(DSR)的方法研究了废橡胶粉改性沥青的微观结构和流变性能.结果表明,废橡胶粉在基质沥青中分散均匀,能很好地吸附沥青,形成稳定的非均相结构;废胶粉改性沥青的复数模量随频率的增加而增大,随温度的升高而减小,沥青逐步转变为粘流态.采用时间温度换算法则得到的频率主曲线可以涵盖路面整个交通状况;对移位因子拟合,高温时WLF方程拟合效果较好,低温时宜采用二次多项式拟合.了解废橡胶粉改性沥青的微观结构及流变性能,为合理应用废橡胶粉改性沥青提供理论支持和技术保障.
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| 关 键 词： | 废胎胶粉 改性沥青 流变特性 微观结构 |
Microcosmic structures and rheological properties of waste rubber modified asphalt |
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| ZHANG Shuyan,CUI Yanan,DONG Xinfeng. Microcosmic structures and rheological properties of waste rubber modified asphalt[J]. New Building Materials, 2011, 38(2) |
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| Authors: | ZHANG Shuyan CUI Yanan DONG Xinfeng |
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| Affiliation: | ZHANG Shuyan,CUI Yanan,DONG Xinfeng(School of Architecture and Civil Engineering,Inner Mongolia University of Technology,Hohhot 010051,Inner Mongolia,China) |
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| Abstract: | The microcosmic structures and rheological properties of the waste rubber modified asphalt were studied by scanning electron microscope(SEM) and dynamic mechanics method(DSR).The results showed that the waster rubber powder evenly dispersed and well adsorbed in the matrix and even can form stable inhomogeneous structures.Waster rubber modified asphalt's complex modulus were increased with the increasing of the frequency and decreased with the increasing of temperature,and then the asphalt was changed into s... |
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| Keywords: | waste tire rubber powder modified asphalt rheological properties microcosmic structures |
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