| 不同工艺对浇筑式沥青混合料疲劳性能的影响 |
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| 作者姓名： | 聂文 张肖宁 吴志勇 |
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| 作者单位： | 华南理工大学土木与交通学院,广东广州510640 |
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| 基金项目： | 国家自然科学基金项目（51038004） |
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| 摘 要： | 通过使用GMA和MA两种成型工艺的浇筑式沥青混合料，并对其进行室内冲击韧性试验，获取了不同成型时间和不同温度下的冲击韧性．基于能量法，分析了不同施工工艺下浇筑式沥青混合料疲劳性能．研究结果表明：使用GMA工艺，在温度为220℃、拌和时间为1h情况下，沥青混合料具有最大的冲击韧性，抵抗变形和断裂能力更强，具有良好的疲劳性能．
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| 关 键 词： | 浇筑式沥青 施工工艺 冲击韧性 荷载位移 |
The effect of different construction technologies on fatigue performances of guss asphalt mixtures |
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| Authors: | NIE Wen ZHANG Xiao-ning WU Zhi-yong |
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| Institution: | (School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China) |
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| Abstract: | By using GMA and MA, two molding technologies of the guss asphalt mix- tures, indoor impact toughness is tested, and the different time and different tempera- ture impact toughness values are obtained. The guss asphalt mixture fatigue perform- ance is analyzed based on the energy method under different construction technologies. The results show that using of GMA process, under the condition of 220 ~C and mixing time of 1 h, asphalt mixture has the greatest impact toughness values, with stronger a- bility to resist deformation and fracture, and has better fatigue performance. |
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| Keywords: | guss asphalt construction technology impact toughness the load displacement |
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