[1]栗培龙,饶文字,冯振刚,等.沥青混合料动态响应的试验条件影响及其主曲线研究[J].郑州大学学报(工学版),2016,37(05):1-5,11.[doi:10.13705/j.issn.1671-6833.2016.05.001]
　Li Peilong,Rao Wenyu,Feng Zhengang,et al.Analysis of Dynamic Response Master Curve of Carbon Black Modified Asphalt Mixture[J].Journal of Zhengzhou University (Engineering Science),2016,37(05):1-5,11.[doi:10.13705/j.issn.1671-6833.2016.05.001]
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沥青混合料动态响应的试验条件影响及其主曲线研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年05期
页码:
1-5,11
栏目:
出版日期:
2016-11-25

文章信息/Info

Title:
Analysis of Dynamic Response Master Curve of Carbon Black Modified Asphalt Mixture
作者:
栗培龙; 饶文字; 冯振刚; 李建阁
长安大学道路结构与材料交通行业重点实验室,陕西西安,710064
Author(s):
Li Peilong;  Rao Wenyu;  Feng Zhengang;  Li Jiange
Key Laboratory of Road Structure and Material Transportation Industry of Chang’an University, Xi’an, Shaanxi 710064
关键词:
Keywords:
asphalt mixture;  Asphalt Mixture Performance Test (AMPT);  visco-elastic dynamic response;  dynamic modulus;  master curve
DOI:
10.13705/j.issn.1671-6833.2016.05.001
文献标志码:
A
摘要:
动态模量是沥青混合料黏弹性动态响应的重要表征参数之一.选择3种级配的沥青混合料进行不同试验条件的沥青混合料性能试验,分析了沥青混合料动态模量随加载频率及试验温度的变化规律,得到了不同加载频率下动态模量随试验温度的衰减模型;分析了加载频率对动态模量衰减率的影响,并讨论了动态模量移位因子,绘制了沥青混合料动态摸量主曲线.结果表明,随着加载频率的升高,沥青混合料的动态模量逐渐增大,但温度越高,增加幅度越小;动态模量随着温度的升高呈指数关系衰减,加载频率越高,衰减速率越大,其中改性沥青混合料AC-13的动态模量随温度衰减速率最小;在较高的温度下(如55℃),不同加载频率的动态模量差异很小.动态模量主曲线和移位因子可以较好的描述加载频率和试验温度对沥青混合科黏弹性响应的影响.
Abstract:
The dynamic modulus is one of the important characterization parameters of the viscoelastic dynamic response of asphalt mixture. Three graded asphalt mixtures were selected to carry out performance tests of asphalt mixture under different test conditions. According to the change law of test temperature, the attenuation model of dynamic modulus with test temperature under different loading frequencies was obtained; the influence of loading frequency on the attenuation rate of dynamic modulus was analyzed, and the shift factor of dynamic modulus was discussed, and the The main curve of dynamic modulus. The results show that as the loading frequency increases, the dynamic modulus of asphalt mixture increases gradually, but the higher the temperature, the smaller the increase; the dynamic modulus has an exponential relationship with the increase of temperature Attenuation, the higher the loading frequency, the greater the attenuation rate, and the dynamic modulus of modified asphalt mixture AC-13 has the smallest decay rate with temperature; at higher temperatures (such as 55°C), the dynamic modulus of different loading frequencies The difference is very small. The dynamic modulus master curve and displacement factor can better describe the influence of loading frequency and test temperature on the viscoelastic response of asphalt mixture.
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