| DMA在沥青流变性能研究中的应用 |
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| 引用本文： | 迟凤霞,张肖宁,王丽健.DMA在沥青流变性能研究中的应用[J].科学技术与工程,2007,7(13):3180-3184. |
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| 作者姓名： | 迟凤霞 张肖宁 王丽健 |
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| 作者单位： | 1. 华南理工大学道路工程研究所,510640
2. 广东省高速公路有限公司,广州,510100 |
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| 基金项目： | 国家自然科学基金项目（50278037）资助 |
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| 摘 要： | 沥青具有显著的流变性，动态力学分析（Dynamic Mechanical Analysis，简称DMA）恰是用流变学指标来评价材料的各种性能。简要阐述了DMA的原理，论述了用DMA方法进行沥青材料性能研究的优越性，结合具体实例阐述该方法在研究沥青及沥青结合料的粘弹性、高温性能、疲劳性能和低温性能等方面的应用，以及DMA方法用于测定沥青零剪切粘度的方法介绍。结果表明，动态力学分析方法可以在相对较短的时间内获得较丰富的粘弹信息，是全面研究沥青性能的有效方法。
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| 关 键 词： | 沥青 动态力学分析 流变性 粘弹性 |
| 修稿时间： | 2007-02-12 |
Application of DMA in Investigating the Rheological Property of Asphalt |
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| CHI Feng-xi,ZHANG Xiao-ning,WANG Li-jian.Application of DMA in Investigating the Rheological Property of Asphalt[J].Science Technology and Engineering,2007,7(13):3180-3184. |
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| Authors: | CHI Feng-xi ZHANG Xiao-ning WANG Li-jian |
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| Institution: | 1. Road Engineer Research Institute of South China University of Technology, Guangzhou 510640 ,P. R. China;2. Gnangdong Provincial Freeway Co,Ltd, Gnangzhnu 510100 ,P. R. China; |
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| Abstract: | Asphalt possesses prominent Rheological Property. Dynamic Mechanical Analysis(DMA)can just estimate various performances of asphalt, using rheological index.Principle of DMA is expounded briefly. Some superiorities using the DMA are discussed. Especially,examples of application are given, which study mechanics performances of asphalt and asphalt binder about viscoelasticity high-temperature performance low-temperature performance and fatigue performance, and how to determine the zero shearing viscosity of asphalt with DMA. The results indicate that Dynamic Mechanical Analysis is an effectual method of studying asphaltp roperty, which can gain abundant information about viscoelasticity in comparatively short time. |
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| Keywords: | asphalt dynamic mechanical analysis(DMA) rheological property viscoelasticity |
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