空隙率对超薄层橡胶沥青混合料高温稳定性的影响
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摘要
空隙率不仅是沥青混合料配合比设计需要考虑的重要参数,也是施工中控制和检验沥青路面施工质量的关键指标之一。选择改进型SMA-10和OGFC-10、美国TYPE-B超薄层级配和常用型AC-13级配,在最佳油石比下通过控制压实功改变其空隙率制备橡胶沥青混合料,对其进行常规车辙试验,研究空隙率对各级配类型橡胶沥青混合料的高温稳定性能的影响。结果表明,空隙率的变化对车辙深度、相对变形速率及动稳定度均有明显影响,其空隙率与动稳定度呈二次曲线关系并有较高的优度;不同级配类型的橡胶沥青混合料在最佳油石比下存在一个最合理的空隙率能使沥青路面的高温稳定性达到最好。对工程中应用不同级配类型的橡胶沥青混合料的施工质量控制具有指导意义。
As a measure of the compactness of asphalt mixture(pavement), the air void was not only a volume parameter, but also affected the pavement performance of asphalt pavement, such as high temperature rutting resistance and water damage resistance. Therefore, the air void was not only an important parameter to be considered in the design of asphalt mixture, but also one of the key indexes to control and test the construction quality of asphalt pavement. In this paper, the improved SMA-10 and OGFC-10, the TYPE-B and AC-13 had been used to mix the asphalt rubber mixture in the optimum asphalt aggregate ratio. By controlling the compaction power to obtain the specimen plates of the rubber asphalt mixture with the different air voids between the conventional the wheel tracking test to research the effect of different air void on high temperature stability of four kinds rubber asphalt mixture. The results showed that the change of air void had significant effect on the 1h rut depth, relative deformation rate and dynamic stability and the relationship between the air void and the dynamic stability showed a quadratic curve and a high goodness-of-fit. By different gradation types of asphalt rubber mixture in the optimum asphalt aggregate ratio had a most reasonable air void could make asphalt rubber pavement to achieve the best high temperature stability. The result had a guiding significance for construction quality control of rubber asphalt mixture with different gradation types in engineering application.
As a measure of the compactness of asphalt mixture(pavement), the air void was not only a volume parameter, but also affected the pavement performance of asphalt pavement, such as high temperature rutting resistance and water damage resistance. Therefore, the air void was not only an important parameter to be considered in the design of asphalt mixture, but also one of the key indexes to control and test the construction quality of asphalt pavement. In this paper, the improved SMA-10 and OGFC-10, the TYPE-B and AC-13 had been used to mix the asphalt rubber mixture in the optimum asphalt aggregate ratio. By controlling the compaction power to obtain the specimen plates of the rubber asphalt mixture with the different air voids between the conventional the wheel tracking test to research the effect of different air void on high temperature stability of four kinds rubber asphalt mixture. The results showed that the change of air void had significant effect on the 1h rut depth, relative deformation rate and dynamic stability and the relationship between the air void and the dynamic stability showed a quadratic curve and a high goodness-of-fit. By different gradation types of asphalt rubber mixture in the optimum asphalt aggregate ratio had a most reasonable air void could make asphalt rubber pavement to achieve the best high temperature stability. The result had a guiding significance for construction quality control of rubber asphalt mixture with different gradation types in engineering application.
引文
[1]褚付克.级配粒径与沥青路面结构层厚度的匹配性及空隙率对沥青混合料动态蠕变性能的影响研究[D].重庆:重庆交通大学,2011.
[2]朱洪洲,黄晓.沥青混合料高温稳定性影响因素分析[J].公路交通科技,2014,21(4):1-3.
[3]李辉,张久鹏,黄晓明.沥青混合料高温稳定性的单轴静载蠕变试验[J].河南科技大学学报,2006,27(3):48-51.
[4]Farhana Rahman,Ph.D.,EIT1,Mustaque Hossain,,Ph.D.,P.E.,F.ASCE2,Stefan A.Romanoschi,Ph.D.,P.E.,M.ASCE3,and Cliff Hobson,P.E.Optimized Design for 4.75-mm NMAS Superpave Mix Thin Overlay[R],T&DI Congress 2011(?)ASCE2011:428-437.
[5]Standard Specification for Performance—Graded Asphalt Binder[S].AASHTO Designation:2010.
[6]Practical Approaches to Hot—Mix Asphalt Mix Design and Production Quality Control Testing[M].US:Transportation Research Board,2007.
[7]朱梦良,王民,邱鑫贵.空隙率对沥青混合料性能的影响分析[J].长沙交通学院学报,2005,21(3):25-31.
[8]胡荣,蔚红,汪比超.橡胶沥青应力吸收层级配对混合料空隙率影响规律研究[J].公路交通技术,2010,6(3):31-37.
[9]黄卫东,黄明,郑茂,等.橡胶沥青混合料SAC—13级配空隙率变化分析[J].同济大学学报,2012,41(5):685-691.
[10]谢昭彬,薛明,易文,等.空隙率与橡胶沥青混合料水稳定性的关系[J].中南林业科技大学学报,2011,31(8):152-156.
[11]Jeff S.Uhlmeyer,PE,Linda M.Pierce,PE,Jim T.Weston,NOVACHIP[J].Washington State Department of Transportation and in cooperation with US Department of Transportation Federal Highway Administration,2003,6(1):571-571.
[12]交通部公路科学研究所.JTG F40-2004公路沥青路面施工技术规范[S].北京:人民交通出版社,2005.
[13]哈尔滨工业大学.GB/T 30516—2014高粘高弹道路沥青[S].北京:中国标准出版社,2014.
[14]交通运输部公路科学研究院.JTG E20-2011公路工程沥青及沥青混合料试验规程[S].北京:人民交通出版社,2011.
[2]朱洪洲,黄晓.沥青混合料高温稳定性影响因素分析[J].公路交通科技,2014,21(4):1-3.
[3]李辉,张久鹏,黄晓明.沥青混合料高温稳定性的单轴静载蠕变试验[J].河南科技大学学报,2006,27(3):48-51.
[4]Farhana Rahman,Ph.D.,EIT1,Mustaque Hossain,,Ph.D.,P.E.,F.ASCE2,Stefan A.Romanoschi,Ph.D.,P.E.,M.ASCE3,and Cliff Hobson,P.E.Optimized Design for 4.75-mm NMAS Superpave Mix Thin Overlay[R],T&DI Congress 2011(?)ASCE2011:428-437.
[5]Standard Specification for Performance—Graded Asphalt Binder[S].AASHTO Designation:2010.
[6]Practical Approaches to Hot—Mix Asphalt Mix Design and Production Quality Control Testing[M].US:Transportation Research Board,2007.
[7]朱梦良,王民,邱鑫贵.空隙率对沥青混合料性能的影响分析[J].长沙交通学院学报,2005,21(3):25-31.
[8]胡荣,蔚红,汪比超.橡胶沥青应力吸收层级配对混合料空隙率影响规律研究[J].公路交通技术,2010,6(3):31-37.
[9]黄卫东,黄明,郑茂,等.橡胶沥青混合料SAC—13级配空隙率变化分析[J].同济大学学报,2012,41(5):685-691.
[10]谢昭彬,薛明,易文,等.空隙率与橡胶沥青混合料水稳定性的关系[J].中南林业科技大学学报,2011,31(8):152-156.
[11]Jeff S.Uhlmeyer,PE,Linda M.Pierce,PE,Jim T.Weston,NOVACHIP[J].Washington State Department of Transportation and in cooperation with US Department of Transportation Federal Highway Administration,2003,6(1):571-571.
[12]交通部公路科学研究所.JTG F40-2004公路沥青路面施工技术规范[S].北京:人民交通出版社,2005.
[13]哈尔滨工业大学.GB/T 30516—2014高粘高弹道路沥青[S].北京:中国标准出版社,2014.
[14]交通运输部公路科学研究院.JTG E20-2011公路工程沥青及沥青混合料试验规程[S].北京:人民交通出版社,2011.