| 基于高温性能的沥青混合料级配设计方法 |
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| 引用本文： | 李平,王秉纲,张争奇.基于高温性能的沥青混合料级配设计方法[J].交通运输工程学报,2010(6). |
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| 作者姓名： | 李平 王秉纲 张争奇 |
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| 作者单位： | 长沙理工大学交通运输工程学院;长安大学特殊地区公路工程教育部重点实验室; |
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| 基金项目： | 湖南省自然科学基金项目(10JJ6082); 湖南省高等学校优秀青年项目(09B002); 长沙理工大学道路结构与材料交通重点实验室开放基金项目(KFJ090206) |
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| 摘 要： | 为设计嵌挤、密实、稳定的矿料级配,利用粗集料堆积密度试验分析了容器容积和撒铺方式对集料密度测试结果的影响,建立了基于MTS的粗集料贯入试验方法,对不同混合料进行了汉堡车辙试验,并提出利用贯入试验确定粗集料级配,利用贝雷法合成粗细集料的混合料级配。试验结果表明:受到容器容积、集料洒落方式等的影响,国内外粗集料松装密度测试数据间存在6%的差距;按贝雷法设计的混合料无法保证其高温稳定性能;贯入试验可有效区分粗集料稳定性,同时与混合料车辙深度的线性相关系数达到0.71。可见,混合料级配设计方法可有效确保混合料高温性能。
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| 关 键 词： | 道路材料 沥青混合料 级配设计 贯入试验 贝雷法 汉堡车辙试验 |
Design method of asphalt mixture aggregate gradation based on high-temperature performance |
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| LI Ping,WANG Bing-gang,ZHANG Zheng-qi.Design method of asphalt mixture aggregate gradation based on high-temperature performance[J].Journal of Traffic and Transportation Engineering,2010(6). |
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| Authors: | LI Ping WANG Bing-gang ZHANG Zheng-qi |
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| Institution: | LI Ping1,WANG Bing-gang2,ZHANG Zheng-qi2(1.School of Transportation Engineering,Changsha University of Science and Technology,Changsha 410076,Hunan,China,2.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang'an University,Xi'an 710064,Shaanxi,China) |
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| Abstract: | In order to gain the aggregate gradation with extrusion,density and stabilization,the density test of coarse aggregate was used to research the influences of vessel volume and spreading mode on aggregate density,penetration test was established based on MTS,and Hamburg wheel rutting test was taken for different mixtures.The gradation of coarse aggregate was confirmed by penetration test,and the aggregate gradations of asphalt mixtures were combined by Bailey method.Test result shows that because of the diff... |
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| Keywords: | road material asphalt mixture gradation design penetration test Bailey method Hamburg wheel rutting test |
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