| 基于渗水特性的沥青混合料空隙率标准 |
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| 引用本文： | 易军艳,冯德成,杨振丹.基于渗水特性的沥青混合料空隙率标准[J].公路交通科技,2009,26(9). |
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| 作者姓名： | 易军艳 冯德成 杨振丹 |
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| 作者单位： | 哈尔滨工业大学,交通科学与工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 首先基于合理的渗水理论选用了适宜的新型渗水仪器,并与现规范仪器进行了性能对比,验证了新型渗水仪试验结果的适用性;然后使用该渗水仪对不同级配类型沥青混合料的渗水特性进行了综合分析,同时对各种沥青混合料的渗水数据做了统计处理,以此为基础并参考国内外技术标准提出了沥青混合料的统一临界渗水系数;最后通过临界渗水系数与渗水曲线确定了不同沥青混合料满足渗水要求的临界空隙率,并以此为基础提出了AC类沥青混合料的空隙率标准.研究结果表明:通过渗水系数和空隙率的双重指标控制可以减少路面结构内部的水分蓄积,降低水损坏的发生概率,改善沥青路面的使用性能.
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| 关 键 词： | 道路工程 沥青混合料 渗水系数 空隙率 |
Criterion of Air Voids Based on Permeability Characteristic of Asphalt Mixture |
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| YI Junyan,FENG Decheng,YANG Zhendan.Criterion of Air Voids Based on Permeability Characteristic of Asphalt Mixture[J].Journal of Highway and Transportation Research and Development,2009,26(9). |
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| Authors: | YI Junyan FENG Decheng YANG Zhendan |
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| Institution: | School of Transportation Science and Engineering;Harbin Institute of Technology;Harbin Heilongjiang 150090;China |
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| Abstract: | First,the feasible new permeability device based on reasonable permeability theory was chosen and it was validated through the performance contrast with the device requested in the related specification.Then,the permeability characteristics of asphalt mixtures with different gradations were analyzed with the new device and the permeability data were analyzed statistically,on this basis and with reference to the related specification at home and abroad,the critical permeability coefficients of asphalt mixtur... |
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| Keywords: | road engineering asphalt mixture permeability coefficient air voids |
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