离析对密级配沥青混合料渗透性能的影响
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摘要
为研究路面离析对密级配沥青混合料渗透性能的影响,通过自制变水头渗透仪对AC-13、AC-20和ATB-25这3种密级配沥青混合料在不同级配离析状态下的渗透参数进行测定,并将试验结果结合现行规范沥青混合料临界渗透系数进行分析。研究结果表明:密级配沥青混合料随着离析程度的增大,渗透性能增大,且增大速率越来越快;空隙率和最大粒径相同时,发生级配离析较温度离析渗透性能更好;空隙率相同时,对于最大粒径不同的密级配混合料,发生级配离析较温度离析所造成的渗透性能差异更大;建议将7%现场空隙率与0.001 cm/s渗透系数组成双重标准用于路面设计与施工质量控制;密级配沥青混合料压实温度应不低于130℃,温度变化应控制在10℃以内,施工时应控制在轻度离析范围以内。
In order to study the influence of pavement segregation on the osmotic performance of asphalt mixture with dense gradation,the permeation parameters of AC-13,AC-20 and ATB-25 with asphalt mixture in different gradation were tested by self-made variablehead permeameter.The test results and the phenomena were analyzed combining with the existing norms of critical coefficient of permeability of asphalt mixture. The results show that the permeability of the graded asphalt mixture increases with the increase of segregation degree,and the rate of increase is faster and faster. When the void ratio and the maximum particle size are the same,the gradation separation is more; when the void ratio is the same,the osmotic performance caused by the gradation separation is greater than that of the dense gradation mix with the largest particle size.It is suggested that the 7% field void ratio and the permeability coefficient of 0. 001 cm/s should become a standard for pavement design and construction quality control; dense graded asphalt mixture compaction temperature should be no less than 130℃,the temperature change should be controlled within 10 ℃,and the construction should be controlled within the range of mild segregation.
In order to study the influence of pavement segregation on the osmotic performance of asphalt mixture with dense gradation,the permeation parameters of AC-13,AC-20 and ATB-25 with asphalt mixture in different gradation were tested by self-made variablehead permeameter.The test results and the phenomena were analyzed combining with the existing norms of critical coefficient of permeability of asphalt mixture. The results show that the permeability of the graded asphalt mixture increases with the increase of segregation degree,and the rate of increase is faster and faster. When the void ratio and the maximum particle size are the same,the gradation separation is more; when the void ratio is the same,the osmotic performance caused by the gradation separation is greater than that of the dense gradation mix with the largest particle size.It is suggested that the 7% field void ratio and the permeability coefficient of 0. 001 cm/s should become a standard for pavement design and construction quality control; dense graded asphalt mixture compaction temperature should be no less than 130℃,the temperature change should be controlled within 10 ℃,and the construction should be controlled within the range of mild segregation.
引文
[1]彭余华,沙爱民,罗志华,等.沥青混合料温度离析特性[J].长安大学学报(自然科学版),2008,28(6):5-10.PENG Yuhua,SHA Aimin,LUO Zhihua,et al. Characteristics of temperature segregation in asphalt mixture[J]. Journal of Chang'an University(Natural Science Edition),2008,28(6):5-10.
[2]陈长锡.沥青混合料装料、卸料过程中的离析研究[D].西安:长安大学,2015.CHEN Changxi.Study on Asphalt Mixture Segregation Under Loading and Unloading Process[D]. Xi'an:Chang'an University,2015.
[3]梁乃兴,杜镇宇,徐建平,等.基于数字图像处理技术和熵权法分析沥青路面均匀度的方法[J].重庆交通大学学报(自然科学版),2017,36(9):28-31.LIANG Naixing,DU Zhenyu,XU Jianping,et al. Analysis method on uniformity of asphalt pavement based on digital image processing technology and entropy weight[J]. Journal of Chongqing Jiaotong University(Natural Science),2017,36(9):28-31.
[4]李朋伟,魏亚,钟黎.超薄层沥青路面摊铺工艺中的抗离析研究[J].重庆交通大学学报(自然科学版),2013,32(3):407-409.LI Pengwei,WEI Ya,ZHONG Li. Resisting segregation analysis in the construction of ultra-thin layer asphalt pavement[J]. Journal of Chongqing Jiaotong University(Natural Science),2013,32(3):407-409.
[5]交通部公路科学研究所.公路沥青路面施工技术规范:JTG F40—2004[S].北京:人民交通出版社,2004.Research Institute of Highway Ministry of Transport. Technical Specification for Construction of Highway Asphalt Pavements:JTG F40—2004[S]. Beijing:China Communications Press,2004.
[6]郑晓光,丛林,郭忠印.沥青混合料温度离析对路面性能的影响[J].重庆交通大学学报(自然科学版),2007,26(6):100-104.ZHENG Xiaoguang, CONG Lin, GUO Zhongyin. Effects of temperature segregation on asphalt pavement performance[J].Journal of Chongqing Jiaotong University(Natural Science),2007,26(6):100-104.
[7]胡力群,暴英波,王天林,等.基于热成像的沥青混合料摊铺温度均匀性分析[J].江苏大学学报(自然科学版),2016,37(6):735-739.HU Liqun,BAO Yingbo,WANG Tianlin, et al. Temperature uniformity analysis of asphalt mixture paving based on thermal imaging[J]. Journal of Jiangsu University(Natural Science Editions),2016,37(6):735-739.
[8]邓德毅.基于路面渗水系数试验的沥青路面综合离析评价方法[J].公路交通技术,2014(1):37-40.DENG Deyi.Evaluation methods for integrated segregation of asphalt pavement based on test for water permeability coefficient of pavement[J].Technology of Highway and Transport,2014(1):37-40.
[9]李立寒,麻旭荣.级配离析沥青混合料性能的试验研究[J].同济大学学报(自然科学版),2007,35(12):1622-1626.LI Lihan,MA Xurong. Influence research of gradation segregation onperformance of asphalt mixture[J]. Journal of Tongji University(Natural Science),2007,35(12):1622-1626.
[10]交通运输部公路科学研究院.公路工程沥青及沥青混合料试验规程:JTG E20—2011[S].北京:人民交通出版社,2011.Research Institute of Highway Ministry of Transport. Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering:JTG E20—2011[S]. Beijing:China Communications Press,2011.
[11]交通运输部公路科学研究院.公路工程集料试验规程:JTG E42—2015[S].北京:人民交通出版社,2015.Research Institute of Highway Ministry of Transport.Test Methods of Aggregate for Highway Engineering:JTG E42—2015[S]. Beijing:China Communications Press,2015.
[12]彭余华.沥青混合料离析特征判别与控制方法的研究[D].西安:长安大学,2006.PENG Yuhua. Study on Discrimination and Control Method of Segregation Characteristics of Asphalt Mixture[D]. Xi'an:Chang'an University,2006.
[13]LI Chuangmin,LIU An,XIAO Yurong. Evaluation segregation of SMA-13 asphalt pavement by compactness[J]. Applied Mechanics and Materials,2014,587/589(7):1067-1070.
[14]STROUP-GARDINER M,BROWN E R. Segregation in Hot-mixAsphalt Pavements[M]. Washington,D. C.:National Academy Press,2000:66-88.
[15]麻旭荣,李立寒.沥青混合料级配离析判别指标的探讨[J].公路交通科技,2006,23(2):48-51.MA Xurong,LI Lihan. Study of index evaluating gradation segregation of hot mix asphalt[J].Journal of Highway and Transportation Research and Development,2006,23(2):48-51.
[16]LI Xuelian,ZHOU Zhigang,LV Xinchao,et al. Temperature segregation of warm mix asphalt pavement:laboratory and field evaluations[J].Construction and Building Materials,2016,136:436-445.
[17]MOHAMMAD L N,HASSAN M M,KIM M. Effects of paver stoppage on temperature segregation in asphalt pavements[J]. Journal of Materials in Civil Engineering,2016,29(2):1719-1728.
[18]袁传泯.非饱和状态下沥青混凝土雨水入渗模型研究[D].重庆:重庆交通大学,2011.YUAN Chuanmin.Study on Unsaturated Asphalt Concrete Rainwater Infiltration Model[D]. Chongqing:Chongqing Jiaotong University,2011.
[19]曹健.空隙率和渗透性对季冻区沥青路面路用性能的影响研究[D].长春:吉林大学,2008.CAO Jian.Research on the Influence of Voidage and Permeability on Road Performance of Asphalt Pavement in Seasonal Frost Area[D].Changchun:Jilin University,2008.
[20]MAUPIN G W.Final Report Investigation of Test Methods,Pavements,and Laboratory Design Relatedto Asphalt Permeability[R]. Charlottesville,Virginia:Virginia Transportation Research Council,2000.
[21]但汉成,李亮,何要超,等.沥青路面渗水性能测试研究[J].公路交通科技,2009,26(8):16-21.DAN Hancheng, LI Liang, HE Yaochao, et al. Study on permeability test of asphalt pavement[J]. Journal of Highway and Transportation Research and Development,2009,26(8):16-21.
[2]陈长锡.沥青混合料装料、卸料过程中的离析研究[D].西安:长安大学,2015.CHEN Changxi.Study on Asphalt Mixture Segregation Under Loading and Unloading Process[D]. Xi'an:Chang'an University,2015.
[3]梁乃兴,杜镇宇,徐建平,等.基于数字图像处理技术和熵权法分析沥青路面均匀度的方法[J].重庆交通大学学报(自然科学版),2017,36(9):28-31.LIANG Naixing,DU Zhenyu,XU Jianping,et al. Analysis method on uniformity of asphalt pavement based on digital image processing technology and entropy weight[J]. Journal of Chongqing Jiaotong University(Natural Science),2017,36(9):28-31.
[4]李朋伟,魏亚,钟黎.超薄层沥青路面摊铺工艺中的抗离析研究[J].重庆交通大学学报(自然科学版),2013,32(3):407-409.LI Pengwei,WEI Ya,ZHONG Li. Resisting segregation analysis in the construction of ultra-thin layer asphalt pavement[J]. Journal of Chongqing Jiaotong University(Natural Science),2013,32(3):407-409.
[5]交通部公路科学研究所.公路沥青路面施工技术规范:JTG F40—2004[S].北京:人民交通出版社,2004.Research Institute of Highway Ministry of Transport. Technical Specification for Construction of Highway Asphalt Pavements:JTG F40—2004[S]. Beijing:China Communications Press,2004.
[6]郑晓光,丛林,郭忠印.沥青混合料温度离析对路面性能的影响[J].重庆交通大学学报(自然科学版),2007,26(6):100-104.ZHENG Xiaoguang, CONG Lin, GUO Zhongyin. Effects of temperature segregation on asphalt pavement performance[J].Journal of Chongqing Jiaotong University(Natural Science),2007,26(6):100-104.
[7]胡力群,暴英波,王天林,等.基于热成像的沥青混合料摊铺温度均匀性分析[J].江苏大学学报(自然科学版),2016,37(6):735-739.HU Liqun,BAO Yingbo,WANG Tianlin, et al. Temperature uniformity analysis of asphalt mixture paving based on thermal imaging[J]. Journal of Jiangsu University(Natural Science Editions),2016,37(6):735-739.
[8]邓德毅.基于路面渗水系数试验的沥青路面综合离析评价方法[J].公路交通技术,2014(1):37-40.DENG Deyi.Evaluation methods for integrated segregation of asphalt pavement based on test for water permeability coefficient of pavement[J].Technology of Highway and Transport,2014(1):37-40.
[9]李立寒,麻旭荣.级配离析沥青混合料性能的试验研究[J].同济大学学报(自然科学版),2007,35(12):1622-1626.LI Lihan,MA Xurong. Influence research of gradation segregation onperformance of asphalt mixture[J]. Journal of Tongji University(Natural Science),2007,35(12):1622-1626.
[10]交通运输部公路科学研究院.公路工程沥青及沥青混合料试验规程:JTG E20—2011[S].北京:人民交通出版社,2011.Research Institute of Highway Ministry of Transport. Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering:JTG E20—2011[S]. Beijing:China Communications Press,2011.
[11]交通运输部公路科学研究院.公路工程集料试验规程:JTG E42—2015[S].北京:人民交通出版社,2015.Research Institute of Highway Ministry of Transport.Test Methods of Aggregate for Highway Engineering:JTG E42—2015[S]. Beijing:China Communications Press,2015.
[12]彭余华.沥青混合料离析特征判别与控制方法的研究[D].西安:长安大学,2006.PENG Yuhua. Study on Discrimination and Control Method of Segregation Characteristics of Asphalt Mixture[D]. Xi'an:Chang'an University,2006.
[13]LI Chuangmin,LIU An,XIAO Yurong. Evaluation segregation of SMA-13 asphalt pavement by compactness[J]. Applied Mechanics and Materials,2014,587/589(7):1067-1070.
[14]STROUP-GARDINER M,BROWN E R. Segregation in Hot-mixAsphalt Pavements[M]. Washington,D. C.:National Academy Press,2000:66-88.
[15]麻旭荣,李立寒.沥青混合料级配离析判别指标的探讨[J].公路交通科技,2006,23(2):48-51.MA Xurong,LI Lihan. Study of index evaluating gradation segregation of hot mix asphalt[J].Journal of Highway and Transportation Research and Development,2006,23(2):48-51.
[16]LI Xuelian,ZHOU Zhigang,LV Xinchao,et al. Temperature segregation of warm mix asphalt pavement:laboratory and field evaluations[J].Construction and Building Materials,2016,136:436-445.
[17]MOHAMMAD L N,HASSAN M M,KIM M. Effects of paver stoppage on temperature segregation in asphalt pavements[J]. Journal of Materials in Civil Engineering,2016,29(2):1719-1728.
[18]袁传泯.非饱和状态下沥青混凝土雨水入渗模型研究[D].重庆:重庆交通大学,2011.YUAN Chuanmin.Study on Unsaturated Asphalt Concrete Rainwater Infiltration Model[D]. Chongqing:Chongqing Jiaotong University,2011.
[19]曹健.空隙率和渗透性对季冻区沥青路面路用性能的影响研究[D].长春:吉林大学,2008.CAO Jian.Research on the Influence of Voidage and Permeability on Road Performance of Asphalt Pavement in Seasonal Frost Area[D].Changchun:Jilin University,2008.
[20]MAUPIN G W.Final Report Investigation of Test Methods,Pavements,and Laboratory Design Relatedto Asphalt Permeability[R]. Charlottesville,Virginia:Virginia Transportation Research Council,2000.
[21]但汉成,李亮,何要超,等.沥青路面渗水性能测试研究[J].公路交通科技,2009,26(8):16-21.DAN Hancheng, LI Liang, HE Yaochao, et al. Study on permeability test of asphalt pavement[J]. Journal of Highway and Transportation Research and Development,2009,26(8):16-21.