| 沥青混合料级配类型与离析程度关系 |
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| 引用本文： | 黄琪,赵昕,雷宇,沙爱民.沥青混合料级配类型与离析程度关系[J].交通运输工程学报,2009,9(2). |
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| 作者姓名： | 黄琪 赵昕 雷宇 沙爱民 |
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| 作者单位： | 黄琪,赵昕,沙爱民,HUANG Qi,ZHAO Xin,SHA Ai-min(长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064);雷宇,LEI Yu(长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064;中交第一公路勘察设计研究院有限公司,陕西,西安,710075)
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| 摘 要： | 调整出具有不同特征的6种级配曲线,施工中在5个不同位置取样,检测不同级配类型混合料的级配组成、构造深度和密度,研究了各种级配混合料在生产及施工过程中发生离析的程度与规律.分析了检测数据的平均组间离差平方和及集料分形维数之间的关系,建立了二者之间的线性回归模型,进行了混合料级配的评估与离析程度的预测.分析结果表明:各种级配混合料离析程度由大到小分别为反S型、间断型、最大密度曲线之上微弓型、S型、最大密度曲线型与最大密度曲线之下微弓型;对回归方程进行F(1,5)显著性检验,其概率值为0.013,小于显著水平0.05,说明该线性模型有效.
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| 关 键 词： | 路面材料 沥青混合料 分形维数 级配类型 离析程度 |
Relationship between gradation type and segregation degree for asphalt mixture |
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| HUANG Qi,ZHAO Xin,LEI Yu,SHA Ai-min.Relationship between gradation type and segregation degree for asphalt mixture[J].Journal of Traffic and Transportation Engineering,2009,9(2). |
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| Authors: | HUANG Qi ZHAO Xin LEI Yu SHA Ai-min |
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| Institution: | 1.Key Laboratory for Special Area Highway Engineering of Ministry of Education;Chang'an University;Xi'an 710064;Shaanxi;China;2.CCCC First Highway Consultants Co.;Ltd.;Xi'an 710075;China |
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| Abstract: | Six curves of gradation types with different properties were designed, the gradation constitutes, texture depthes and densities of asphalt mixtures with different gradations at five different positions were detected, and the segregation degrees and rules of asphalt mixtures in construction process were investigated. By studying the relationship between the mean squares of test data and the fractal dimensions of aggregates, a linear regression model of the relationship were established. Using the model, the ... |
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| Keywords: | pavement material asphalt mixture fractal dimension gradation type segregation degree |
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