期刊文献+

基于动态力学分析的改性沥青黏弹性能研究 被引量:10

Analysis of Viscoelastic Properties of Modified Asphalt via Dynamic Mechanical Method
下载PDF
导出
摘要 鉴于目前的沥青黏弹性能评价指标对改性沥青的适用性较差,采用动态力学分析方法对基质沥青和改性沥青进行研究,测定了不同温度和频率下沥青的黏弹性能参数,通过Han曲线和动态黏弹参数的变化规律分析其黏弹性能.结果表明:改性沥青的Han曲线在不同温度下具有不同的温度依赖性,由于其相态结构比较复杂,导致其黏弹性能不同于基质沥青;采用动态力学方法能很好地揭示改性沥青的宏观力学性能与微观结构的相关性. As the existing evaluation index of viscoelastic properties of asphalt is inapplicable to modified asphalt, the viscoelastic properties of both base asphah and modified asphalt are analyzed by using the dynamic mechanical method. In the investigation, the parameters describing the viscoelastic properties at different temperatures and fre- quencies are measured, and the variation laws of both Han curves and dynamic viscoelastic parameters are analyzed. The results indicate that the temperature dependence of Han curves of modified asphalt varies at different temperatures, that there exists a great difference in viscoelasitc properties between base asphalt and modified as- phalt due to the complex morphological structure of modified asphalt, and that the dynamic mechanical analysis is effective in revealing the relativity between the macroscopic mechanical properties and the microstructure of modified asphalt.
出处 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2010年第3期37-40,52,共5页 Journal of South China University of Technology(Natural Science Edition)
基金 国家自然科学基金资助项目(50808087)
关键词 道路工程 改性沥青 黏弹性能 动态力学分析 Han曲线 road engineering modified asphalt viscoelastic property dynamic mechanical analysis Han curve
  • 相关文献

参考文献8

  • 1Bahia H U,Hanson D L,Zeng M,et al.Characterization of modified asphalt binders in superpave mix design[R].Washington D C:National Cooperative Highway Research Program,National Academy Press,2001:46-49.
  • 2Dongre,Angelo D,Reinke Gerry.A new criterion for superpave high temperature binder specification[R].Washington D C:TRB,Transportation Research Board of the National Academies,2004:25-41.
  • 3Anderson D A,Planche J,Martin D.Zero shear viscosity of asphalt binders[R].Washington D C:TRB,Transportation Research Board of the National Academies,2002:2-19.
  • 4袁燕,肖云,张肖宁.SBS改性沥青剪切发育过程的动态力学热分析[J].中国公路学报,2006,19(3):29-33. 被引量:23
  • 5Wegan V,Brule B.The structure of polymer modified binders and corresponding asphalt mixture[J].AAPT,1999,68:64-88.
  • 6詹小丽,张肖宁,王端宜,卢亮.基于动态蠕变性能的沥青延迟时间谱研究[J].中国公路学报,2008,21(2):34-38. 被引量:3
  • 7Han C D,Baek D H,Kim J K.Effect of volume fraction on the order-disorder transition in low molecular weight polystyrene-block-polyisoprene copolymers[J].Macromolecules,1995,28(14):5043-5062.
  • 8Khonakdar H A,Wagenknecht U,Jafari S H.Dynamic mechanical properties and morphology of polyethylene/ethylene vinyl acetate copolymer blends[J].Advances in Polymer Technology,2004,23(4):307-315.

二级参考文献21

共引文献24

同被引文献94

引证文献10

二级引证文献54

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部