| 不同层位格栅加筋的沥青混凝土力学性能 |
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| 引用本文： | 刘建兰,王朝辉,王选仓.不同层位格栅加筋的沥青混凝土力学性能[J].交通运输工程学报,2009,9(2). |
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| 作者姓名： | 刘建兰 王朝辉 王选仓 |
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| 作者单位： | 刘建兰,LIU Jian-lan(长安大学,公路学院,陕西,西安,710064;中交第二公路工程局有限公司,陕西,西安,710065);王朝辉,王选仓,WANG Chao-hui,WANG Xuan-cang(长安大学,公路学院,陕西,西安,710064)
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| 基金项目： | 国家西部交通建设科技项目 |
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| 摘 要： | 为了分析格栅层位对加筋沥青混凝土力学性能影响的内在规律,分别制作不同层位格栅加筋的沥青混凝土轮碾成型试件和马歇尔成型试件,进行了混凝土层间剪切与层间拉拔试验,同时研究了格栅层位对加筋沥青混凝土强度性能的影响,并引入无量纲的韧性指数对劈裂强度试验进行评价.结果表明:设格栅的沥青混凝土试件的力学性能都优于不设格栅的试件;在25℃和60℃的不同层位格栅加筋的沥青混凝土的层间抗剪能力相似;当格栅设于混凝土试件中间时,加筋沥青混凝土层间粘结能力最好,其抗压强度、抗压回弹模量及韧性最大;当格栅远离混凝土中间时,加筋混凝土的劈裂强度最大.
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| 关 键 词： | 路面材料 沥青混凝土 力学性能 格栅层位 |
Mechanical properties of reinforced asphalt concretes with different position grids |
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| LIU Jian-lan,WANG Chao-hui,WANG Xuan-cang.Mechanical properties of reinforced asphalt concretes with different position grids[J].Journal of Traffic and Transportation Engineering,2009,9(2). |
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| Authors: | LIU Jian-lan WANG Chao-hui WANG Xuan-cang |
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| Institution: | 1.School of Highway;Chang'an University;Xi'an 710064;Shaanxi;China;2.CCCC Second Highway Engineering Co.;Ltd.;Xi'an 710065;China |
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| Abstract: | In order to study the internal law of mechanical properties for reinforced asphalt concretes with different position grids, wheel rolling specimens and Marshall formation samples were respectively made. Interlayer shear and pull-out tests were conducted. The influence of grid position on concrete strength property was studied. Dimensionless toughness index was introduced to evaluate splitting strength test. Analysis result shows that the mechanical property of asphalt concrete reinforced with grid is better... |
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| Keywords: | pavement material asphalt concrete mechanical property grid position |
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