SAMPAVE应力吸收层混合料沥青用量预估模型研究
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摘要
为防止或延缓旧水泥路面加铺沥青面层、新建路面半刚性基层或刚性基层因后期产生温缩、干缩裂缝而引发的路面早期反射裂缝问题,课题组研发了SAMPAVE应力吸收层。该功能层采用特种改性沥青和特定矿料级配制成,沥青含量高达9%,形成富沥青砂粒式沥青混合料。SAMPAVE应力吸收层混合料设计方法有别于其它类型混合料,采用常用的马歇尔法和Superpave法进行混合料设计都存在一定的缺陷,因此,对于SAMPAVE应力吸收层混合料设计方法的研究须摆脱传统思维,另辟蹊径,合理确定沥青用量对其大面积推广应用具有重要的意义。
论文对比了分形理论、比表面积因子法、表面积指数法、隔离膜方法等四种比表面积理论计算方法的特点,建立了基于分形理论的SAMPAVE应力吸收层混合料比表面积计算模型。并对比了三种实测比表面积的方法(氮吸附法、粒度分析法、勃氏透气法),发现氮吸附法测试矿料比表面积较为合适,且分形理论模型计算值与实测值较为相近。然后分析了沥青膜厚对混合料性能的影响,综合应力吸收层混合料各项性能指标,确定应力吸收层混合料的合理三维膜厚为12-13μm。通过确定矿质混合料总比表面积,考虑最佳沥青膜厚时有效沥青含量及矿料所吸收的沥青量,得出SAMPAVE应力吸收层混合料沥青用量预估值。采用本文模型对青兰高速和武黄高速铺筑应力吸收层路段工程资料的验算,发现预估模型具有较好的可靠性和适用性。
In order to prevent and reduce early reflected crack produced by semi-rigid base or rigid base's temperature shrinkage or dry crack in the overlay of old cement concrete pavement, the new construction, the SAMPAVE Stress Absorbing Layer is developed. This function layer adopts the special modifying asphalt and the specific mineral aggregate gradation, the asphalt content reaches as high as 9%, forms the rich asphalt sand grains type bituminous mixture. The SAMPAVE stress absorbing layer mixture design method is different from other type mixture, and the commonly used Marshall method and the Superpave method for this type mixture design have some shortcomings. Therefore, the research of mixture design method for the SAMPAVE stress absorbing layer should get rid of traditional thought and tries another path. Reasonably determing the asphalt content for the SAMPAVE stress absorbing layer's mixture design has the vital significance for its wide application.
This paper has contrasted four theoretical calculation method for specific surface area (including fractal theory method, specific surface area factor method, surface area index method, isolating membrane method), and established the surface area calculation model based on the fractal theory for the SAMPAVE stress absorption layer mixture. Then three measurement methods of specific surface area (BET method, grain size analysis, blaine method) is compared, found that the BET method to test mineral aggregate's specific surface area is more appropriate than others, and the fractal theoretical model predicted value and the actual value are closer. After that, the asphalt film thickness of asphalt mixture influence on the mixture performance is analyzed, considering all of mixture performance index of SAMPAVE stress absorbing layer comprehensively, the reasonable three dimensional film thickness is recommend about 12～13μm. According to determination of mineral mixture's total specific surface area, considering the effective asphalt content and the absorbing the asphalt content by mineral aggregate at the best asphalt film thickness, the asphalt amount estimation velue of SAMPAVE stress absorbing layer mixture is obtained. Through checking calculation on engineering datas of the stress absorbing layer section in Qing-Lan highway and Wu-Huang highway with this model, it is discovered that the prediction model has a good reliability and the applicability.
论文对比了分形理论、比表面积因子法、表面积指数法、隔离膜方法等四种比表面积理论计算方法的特点,建立了基于分形理论的SAMPAVE应力吸收层混合料比表面积计算模型。并对比了三种实测比表面积的方法(氮吸附法、粒度分析法、勃氏透气法),发现氮吸附法测试矿料比表面积较为合适,且分形理论模型计算值与实测值较为相近。然后分析了沥青膜厚对混合料性能的影响,综合应力吸收层混合料各项性能指标,确定应力吸收层混合料的合理三维膜厚为12-13μm。通过确定矿质混合料总比表面积,考虑最佳沥青膜厚时有效沥青含量及矿料所吸收的沥青量,得出SAMPAVE应力吸收层混合料沥青用量预估值。采用本文模型对青兰高速和武黄高速铺筑应力吸收层路段工程资料的验算,发现预估模型具有较好的可靠性和适用性。
In order to prevent and reduce early reflected crack produced by semi-rigid base or rigid base's temperature shrinkage or dry crack in the overlay of old cement concrete pavement, the new construction, the SAMPAVE Stress Absorbing Layer is developed. This function layer adopts the special modifying asphalt and the specific mineral aggregate gradation, the asphalt content reaches as high as 9%, forms the rich asphalt sand grains type bituminous mixture. The SAMPAVE stress absorbing layer mixture design method is different from other type mixture, and the commonly used Marshall method and the Superpave method for this type mixture design have some shortcomings. Therefore, the research of mixture design method for the SAMPAVE stress absorbing layer should get rid of traditional thought and tries another path. Reasonably determing the asphalt content for the SAMPAVE stress absorbing layer's mixture design has the vital significance for its wide application.
This paper has contrasted four theoretical calculation method for specific surface area (including fractal theory method, specific surface area factor method, surface area index method, isolating membrane method), and established the surface area calculation model based on the fractal theory for the SAMPAVE stress absorption layer mixture. Then three measurement methods of specific surface area (BET method, grain size analysis, blaine method) is compared, found that the BET method to test mineral aggregate's specific surface area is more appropriate than others, and the fractal theoretical model predicted value and the actual value are closer. After that, the asphalt film thickness of asphalt mixture influence on the mixture performance is analyzed, considering all of mixture performance index of SAMPAVE stress absorbing layer comprehensively, the reasonable three dimensional film thickness is recommend about 12～13μm. According to determination of mineral mixture's total specific surface area, considering the effective asphalt content and the absorbing the asphalt content by mineral aggregate at the best asphalt film thickness, the asphalt amount estimation velue of SAMPAVE stress absorbing layer mixture is obtained. Through checking calculation on engineering datas of the stress absorbing layer section in Qing-Lan highway and Wu-Huang highway with this model, it is discovered that the prediction model has a good reliability and the applicability.
引文
[1]廖卫东.基于应力吸收层的旧水泥混凝土路面沥青加铺层结构与材料研究[D].武汉：武汉理工大学,2007
[2]廖卫东,陈拴发,刘云全.STRATA应力吸收层抗疲劳特性研究[J].武汉理工大学学报,2003,25(12)：1-4
[3]杨斌,陈拴发,廖卫东等.STRATA应力吸收层对加铺层荷载及温度应力的影响分析[J].公路交通科技,2005,22(9)：27-30
[4]陈骁,朱春阳.不同沥青混合料设计方法对比评价分析[J].中外公路,2007年第4期
[5]汪海年.沥青混合料微细观结构及其数值模拟[D].西安：长安大学博士论文,2008：3-8
[6]胡霞光.沥青混合料微观力学分析综述[J].长安大学学报：自然科学版,2005,25(2)：6-10
[7]黄碧霞,陆阳,张华.基于图像识别的沥青混合料有限元建模.路基工程.2007年第6期：5-6
[8]田莉,刘玉,王秉刚.沥青混合料三维离散元模型及其重构技术.长安大学学报,2007年7月：25-26
[9]Wang, L. B., Frost, J. D., and Shashidhar, N.,2001,"Microstructure Study of Westrack Mixes from X-ray Tomography Images," TRR,1767, pp.85-94
[10]裴建中著.沥青路面细观结构特性与衰变行为[M].北京：科学出版社,2010
[11]林志栋著.沥青混凝土配合设计及其原理[M].台北：科技图书公司,1986：366-367
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[13]郑玉.集料比表面积计算方法探讨[J].公路工程与运输,2008(11)
[14]刘丹.应力吸收层材料组成及其特性研究[D].西安：长安大学硕士论文,2005：29-30
[15]许福,曹政,董荟青等.体积法计算中沥青膜厚度与最佳沥青用量关系新解[J].华东公路,2006,162(6)：84
[16]徐定华等编.混凝土材料学概论[M].北京,中国标准出版社,2002：266-267,279-283
[17]黄继成,黄彭.沥青混合料集料分形和性状相关性研究[J].同济大学学报(自然科学版),2006(12)：1633-1636
[18]黄继成,黄彭.沥青混合料集料分维数值和矿料间隙率的关系[J].同济大学学报(自 然科学版),2007(11)：1482-1483
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[21]S. Ersahin, H. Gunal, T. Kutlu, B. Yetgin, S. Coban.Estimating specific surface area and cation exchange capacity in soils using fractal dimension of particle-size distribution[J]. ScienceDirect. Geoderma 136 (2006):588-589
[22]赵战利.基于分形方法的沥青路面抗滑技术研究[D].西安：长安大学硕士论文,2005：30-32
[23]赵战利,张争奇,薛建设,王秉纲.基于分形方法的沥青路面抗滑级配评价[J].长安大学学报.2008,28(3)：7
[24]Xinjun Li; R. Christopher Williams; Mihai O. Marasteanu; Timothy R. Clyne; Eddie Johnson. Investigation of In-Place Asphalt Film Thickness and Performance of Hot-Mix Asphalt Mixtures[J]. JOURNAL OF MATERIALS IN CIVIL ENGINEERING.2009, pp.264-266
[25]刑明亮.排水路面沥青混合料的胶浆特性及矿料组成研究[D].西安：长安大学博士论文,2006： 80-82
[26]Boris Radovs KIY. Analytical Formulas for Film Thickness in Compacted Asphalt Mixture[C]. Transportation Research Board 82nd Annual Meeting, TRB, National Research Council, Washington D.C.,2003:1-7
[27]Yen, T. F. Asphaltic Material [M]. In Encyclopedia of Polymer Science and Engineering, Supplementary Volume,2nd edition, John Wiley & Sons, New York,1989
[28]侯芸,魏道新,田波等.沥青混合料油膜厚度计算方法[J].交通运输工程学报.2007(4)
[29]Nukunya, B., R. Roque, M. Tia, B. Birgisson. Evaluation of VMA and Other Volumetric Properties as Criteria for the Design and Acceptance of Superpave Mixtures[J]. Journal of the Association of Asphalt Paving Technologists,2002, Vol.79, pp.38-69
[30]韩秋萍.对多孔物质或固体粉末比表面积测定方法探讨[J].河南冶金.2002(4)：10
[31]《金属粉末比表面积的测定氮吸附法》(GB/T 13390-2008)[S].北京.中国标准出版社.2008
[32]《公路工程水泥及水泥混凝土试验规程》(JTG E30-2005)[S].北京.人民交通出版社.2005：T0504-2005
[33]Kandhal, P.S., and Chakraborty, S. Effect of Asphalt binder film Thickness on Short and Long Term Aging of Asphalt Paving Mixtures [R]. NCAT Report 96-01, National Center for Asphalt Technology, Auburn, AL,1996
[34]Hinrichsen, J.A., and Heggen, J. Minimum Voids in Mineral Aggregate in Hot-Mix Asphalt Based on Gradation and Volumetric Properties. In Transportation Research Record, No.1545, Washington, D.C.,1996, pp.75-79
[35]Kandhal, P.S., Foo, K.Y., and Mallick, R.B. A Critical Review of VMA Requirements in SuperPave. NCAT Report 98-01, National Center for Asphalt Technology, Auburn, AL,1998
[36]美国国家沥青研究中心、美国阿拉巴马州奥本大学著(王嬿译).热拌沥青材料、混合料设计与施工[M].北京：人民交通出版社,2008
[37]Read, J.M. New Method for Measuring Crack Propagation in Asphalts [J]. International Journal of Pavement Engineering, Vol. Ⅰ, No.1,2000, pp.15-34
[38]Xinjun Li; R. Christopher Williams; Mihai O. Marasteanu; Timothy R. Clyne; and Eddie Johnson. Investigation of In-Place Asphalt Film Thickness and Performance of Hot-Mix Asphalt Mixtures[J]. JOURNAL OF MATERIALS IN CIVIL ENGINEERING. ASCE/ JUNE 2009, pp.262-266
[39]Mostafa A Elseifi, Imad L. Al-Qadi, Shih-Hsien Yang, and Samuel Carpenter. Validity of Asphalt Binder Film Thickness Concept in Hot-Mix Asphalt[C]. Transportation Research Board.87th Annual Meeting. TRB, National Research Council, Washington D.C.,2008, pp.2-13
[40]Kose, S., Guler, M., Bahia, H.U., and Masad, E. Distribution of Strains within Asphalt Binders in HMA Using Imaging and Finite Element Techniques. In Transportation Research Record, No.1728, Washington, D.C.,2000, pp.21-27
[41]Wegan, V., Brule, B., and Lefebvre, J. The Structure of Polymer Modified Binders and Corresponding Asphalt Mixtures[R]. Danish Road Institute, Report 92,1999, pp.8-9
[42]Anderson, D.A., Bahia, H.U., and Dongre, R. Rheological Properties of Mineral Filler-Asphalt Mastics and Its Importance to Pavement Performance. Effects of Aggregates and Mineral Fillers on Asphalt Mixture Performance [J], ASTM STP 1147, Richard C. Meininger, Editor, American Society for Testing and Materials, Philadelphia, 1992, pp.131-133
[43]王海峰,国冬花,刘树平.基于颗粒特征的沥青膜厚度计算方法概述[J].交通世界.2009(3/4)：192
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[45]周燕.SAMPAVE材料性能及其关键评价指标研究[D].西安：长安大学博士论文,2010：87-94
[46]李立寒,张南鹭著.道路建筑材料[M].北京：人民交通出版社.2003(12)：90-91
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[48]陈华鑫,徐鹏,童琴.陕西省复合改性沥青路面使用性能研究分报告之四[R]——复合改性沥青混合料路用性能研究,2010
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[50]林楠.基于分形理论的排水沥青混合料最佳沥青用量预估模型研究[D].西安：长安大学博士论文,2010：74-75
[2]廖卫东,陈拴发,刘云全.STRATA应力吸收层抗疲劳特性研究[J].武汉理工大学学报,2003,25(12)：1-4
[3]杨斌,陈拴发,廖卫东等.STRATA应力吸收层对加铺层荷载及温度应力的影响分析[J].公路交通科技,2005,22(9)：27-30
[4]陈骁,朱春阳.不同沥青混合料设计方法对比评价分析[J].中外公路,2007年第4期
[5]汪海年.沥青混合料微细观结构及其数值模拟[D].西安：长安大学博士论文,2008：3-8
[6]胡霞光.沥青混合料微观力学分析综述[J].长安大学学报：自然科学版,2005,25(2)：6-10
[7]黄碧霞,陆阳,张华.基于图像识别的沥青混合料有限元建模.路基工程.2007年第6期：5-6
[8]田莉,刘玉,王秉刚.沥青混合料三维离散元模型及其重构技术.长安大学学报,2007年7月：25-26
[9]Wang, L. B., Frost, J. D., and Shashidhar, N.,2001,"Microstructure Study of Westrack Mixes from X-ray Tomography Images," TRR,1767, pp.85-94
[10]裴建中著.沥青路面细观结构特性与衰变行为[M].北京：科学出版社,2010
[11]林志栋著.沥青混凝土配合设计及其原理[M].台北：科技图书公司,1986：366-367
[12]中华人民共和国行业标准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,2004：88-89
[13]郑玉.集料比表面积计算方法探讨[J].公路工程与运输,2008(11)
[14]刘丹.应力吸收层材料组成及其特性研究[D].西安：长安大学硕士论文,2005：29-30
[15]许福,曹政,董荟青等.体积法计算中沥青膜厚度与最佳沥青用量关系新解[J].华东公路,2006,162(6)：84
[16]徐定华等编.混凝土材料学概论[M].北京,中国标准出版社,2002：266-267,279-283
[17]黄继成,黄彭.沥青混合料集料分形和性状相关性研究[J].同济大学学报(自然科学版),2006(12)：1633-1636
[18]黄继成,黄彭.沥青混合料集料分维数值和矿料间隙率的关系[J].同济大学学报(自 然科学版),2007(11)：1482-1483
[19]唐明.关于混凝土骨料分形级配问题[J].混凝土,1996(1)：3～4,12
[20]李国强,邓学钧著.级配骨料的分形效应.混凝土,1995(1)：3～7
[21]S. Ersahin, H. Gunal, T. Kutlu, B. Yetgin, S. Coban.Estimating specific surface area and cation exchange capacity in soils using fractal dimension of particle-size distribution[J]. ScienceDirect. Geoderma 136 (2006):588-589
[22]赵战利.基于分形方法的沥青路面抗滑技术研究[D].西安：长安大学硕士论文,2005：30-32
[23]赵战利,张争奇,薛建设,王秉纲.基于分形方法的沥青路面抗滑级配评价[J].长安大学学报.2008,28(3)：7
[24]Xinjun Li; R. Christopher Williams; Mihai O. Marasteanu; Timothy R. Clyne; Eddie Johnson. Investigation of In-Place Asphalt Film Thickness and Performance of Hot-Mix Asphalt Mixtures[J]. JOURNAL OF MATERIALS IN CIVIL ENGINEERING.2009, pp.264-266
[25]刑明亮.排水路面沥青混合料的胶浆特性及矿料组成研究[D].西安：长安大学博士论文,2006： 80-82
[26]Boris Radovs KIY. Analytical Formulas for Film Thickness in Compacted Asphalt Mixture[C]. Transportation Research Board 82nd Annual Meeting, TRB, National Research Council, Washington D.C.,2003:1-7
[27]Yen, T. F. Asphaltic Material [M]. In Encyclopedia of Polymer Science and Engineering, Supplementary Volume,2nd edition, John Wiley & Sons, New York,1989
[28]侯芸,魏道新,田波等.沥青混合料油膜厚度计算方法[J].交通运输工程学报.2007(4)
[29]Nukunya, B., R. Roque, M. Tia, B. Birgisson. Evaluation of VMA and Other Volumetric Properties as Criteria for the Design and Acceptance of Superpave Mixtures[J]. Journal of the Association of Asphalt Paving Technologists,2002, Vol.79, pp.38-69
[30]韩秋萍.对多孔物质或固体粉末比表面积测定方法探讨[J].河南冶金.2002(4)：10
[31]《金属粉末比表面积的测定氮吸附法》(GB/T 13390-2008)[S].北京.中国标准出版社.2008
[32]《公路工程水泥及水泥混凝土试验规程》(JTG E30-2005)[S].北京.人民交通出版社.2005：T0504-2005
[33]Kandhal, P.S., and Chakraborty, S. Effect of Asphalt binder film Thickness on Short and Long Term Aging of Asphalt Paving Mixtures [R]. NCAT Report 96-01, National Center for Asphalt Technology, Auburn, AL,1996
[34]Hinrichsen, J.A., and Heggen, J. Minimum Voids in Mineral Aggregate in Hot-Mix Asphalt Based on Gradation and Volumetric Properties. In Transportation Research Record, No.1545, Washington, D.C.,1996, pp.75-79
[35]Kandhal, P.S., Foo, K.Y., and Mallick, R.B. A Critical Review of VMA Requirements in SuperPave. NCAT Report 98-01, National Center for Asphalt Technology, Auburn, AL,1998
[36]美国国家沥青研究中心、美国阿拉巴马州奥本大学著(王嬿译).热拌沥青材料、混合料设计与施工[M].北京：人民交通出版社,2008
[37]Read, J.M. New Method for Measuring Crack Propagation in Asphalts [J]. International Journal of Pavement Engineering, Vol. Ⅰ, No.1,2000, pp.15-34
[38]Xinjun Li; R. Christopher Williams; Mihai O. Marasteanu; Timothy R. Clyne; and Eddie Johnson. Investigation of In-Place Asphalt Film Thickness and Performance of Hot-Mix Asphalt Mixtures[J]. JOURNAL OF MATERIALS IN CIVIL ENGINEERING. ASCE/ JUNE 2009, pp.262-266
[39]Mostafa A Elseifi, Imad L. Al-Qadi, Shih-Hsien Yang, and Samuel Carpenter. Validity of Asphalt Binder Film Thickness Concept in Hot-Mix Asphalt[C]. Transportation Research Board.87th Annual Meeting. TRB, National Research Council, Washington D.C.,2008, pp.2-13
[40]Kose, S., Guler, M., Bahia, H.U., and Masad, E. Distribution of Strains within Asphalt Binders in HMA Using Imaging and Finite Element Techniques. In Transportation Research Record, No.1728, Washington, D.C.,2000, pp.21-27
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