| 沥青混合料四点弯曲动态模量试验研究 |
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| 引用本文： | 宋鑫,钱振东,王江洋. 沥青混合料四点弯曲动态模量试验研究[J]. 石油沥青, 2011, 25(2): 17-21 |
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| 作者姓名： | 宋鑫 钱振东 王江洋 |
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| 作者单位： | 东南大学智能运输系统研究中心,南京,210096 |
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| 摘 要： | 沥青混合料的动态模量主要有压缩动态模量、劈裂动态模量和弯曲动态模量。考虑到四点弯曲更符合沥青路面实际的弯拉受力状态，进行了沥青混合料四点弯曲动态模量试验，采用LDMT-25疲劳试验系统，应用非接触式的位移量测方法，在试验温度、加载频率和应力比不同组合的工况下，对AC-13C型沥青混合料四点弯曲动态模量值进行了测定，分析了试验中四点弯曲动态模量的影响因素。
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| 关 键 词： | 沥青混合料 四点弯曲动态模量 频率 温度 荷载 油石比 |
Research on Four-Point Bending Dynamic Modulus Test of Asphalt Mixtures |
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| Song Xin,Qian Zhendong,Wang Jiangyang. Research on Four-Point Bending Dynamic Modulus Test of Asphalt Mixtures[J]. Petroleum Asphalt, 2011, 25(2): 17-21 |
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| Authors: | Song Xin Qian Zhendong Wang Jiangyang |
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| Affiliation: | Song Xin Qian Zhendong Wang Jiangyang Intelligent Transportation System Research Center,Southeast University(Nanjing 210096,China) |
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| Abstract: | Dynamic modulus of asphalt mixtures is mainly consisted of compression dynamic modulus, indirect tensile dynamic modulus and bending dynamic modulus.Taking into account that the four-point bending stress state is more in line with the actual flexural-tensile stress state of asphalt pavement,this paper did the experiment of four-point bending dynamic modulus of asphalt mixtures.This paper used LDMT-25 fatigue testing system and the contacdess measurement method of displacement to do the experiments of four-p... |
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| Keywords: | asphalt mixtures four-point bending dynamic modulus frequency temperature load asphalt aggregate ratio |
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