盐冻融循环条件下沥青高温流变性能及微观结构
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摘要
利用动态剪切流变仪(DSR)和原子力显微镜(AFM)对冻融循环前后的基质沥青和胶粉改性沥青进行测试,比较分析了不同盐浓度和冻融循环次数下两种沥青的动态黏弹参数及微观结构,并测试了冻融前后两种沥青的基本指标。结果表明:经历冻融循环后,基质沥青储存模量和车辙因子均增加,疲劳因子减小,而胶粉改性沥青没有明显变化,冻融循环增加了基质沥青的高温弹性性能,但显著降低了抗疲劳性能,而冻融循环对胶粉改性沥青的高温性能影响不大;AFM观测表明基质沥青出现"蜂形"结构,冻融循环后"蜂形"变大、变长,而胶粉改性沥青的结构几乎没有变化,因此北方寒冷地区使用胶粉改性沥青作为路面材料更具优势。
The Dynamic Shear Rheometer(DSR)and Atomic Force Microscope(AFM)were utilized to test matrix asphalt and rubber-modified asphalt before and after freeze-thaw cycles.The dynamic viscoelastic parameters and its microstructure had been compared and analyzed under different salt concentrations and cycle times,and three major indexes of two kinds of asphalt had also been tested before and after freeze-thaw cycles.The results show that storage modulus and rutting factor of matrix asphalt increase,and fatigue factor decreases,but rubber-modified asphalt has no significant change after freeze-thaw cycles,while freeze-thaw cycle increases the high temperature elastic property,but it decreases anti-fatigue ability of matrix asphalt greatly,and makes little influence on high temperature rheological properties of rubber-modified asphalt.AFM observations show that matrix asphalt appears "bee structures",which becomes bigger and longer after freeze-thaw cycles,but rubber-modified asphalt has no significant change,so rubber-modified asphalt used as pavement material has more advantage in north cold region.
The Dynamic Shear Rheometer(DSR)and Atomic Force Microscope(AFM)were utilized to test matrix asphalt and rubber-modified asphalt before and after freeze-thaw cycles.The dynamic viscoelastic parameters and its microstructure had been compared and analyzed under different salt concentrations and cycle times,and three major indexes of two kinds of asphalt had also been tested before and after freeze-thaw cycles.The results show that storage modulus and rutting factor of matrix asphalt increase,and fatigue factor decreases,but rubber-modified asphalt has no significant change after freeze-thaw cycles,while freeze-thaw cycle increases the high temperature elastic property,but it decreases anti-fatigue ability of matrix asphalt greatly,and makes little influence on high temperature rheological properties of rubber-modified asphalt.AFM observations show that matrix asphalt appears "bee structures",which becomes bigger and longer after freeze-thaw cycles,but rubber-modified asphalt has no significant change,so rubber-modified asphalt used as pavement material has more advantage in north cold region.
引文
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[2]李兆生.冻融循环对沥青混合料力学性能的影响[J].哈尔滨工程大学学报,2014,35(3):378-381.LI Zhaosheng.The effects of the freeze-thaw cycle on the mechanical properties of the asphalt mixture[J].Journal of Harbin Engineering University,2014,35(3):378-381(in Chinese).
[3]FENG D C,YI J Y.Impact of salt and freeze-thaw cycles on performance of asphalt mixtures in coastal frozen region of China[J].Cold Regions Science and Technology,2010(62):34-41(in Chinese).
[4]CHENG Yuan.Prospect for application of water rubber power[J].China Synthetic Rubber Industry,2001,24(2):65-66.
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[8]姜睆.沥青胶浆自愈合能力研究[D].武汉:武汉理工大学,2011.JIANG Wan.Research on the self-healing capacity of bitumen mastics[D].Wuhan:Wuhan University of Science and Technology,2011(in Chinese).
[9]邹桂莲,张肖宁,韩传代.应用DSR评价沥青胶浆路用性能的研究[J].哈尔滨建筑大学学报,2001,34(3):112-115.ZOU Guilian,ZHANG Xiaoning,HAN Chuandai.Utilization of DSR for evaluation of pavement performance[J].Journal of Harbin University of C.E and Architecture,2001,34(3):112-115(in Chinese).
[10]CAMARO S,SIMONDI-TEISSEIRE B,VISTOLI P P.Long-term behaviour of bituminized waste[C]∥Proceedings of the International Workshop on the Safety and Performance Evaluation of Bituminization Processes for Radioactive Waste.Czech Republic:Nuclear Research Institute Rez,1999:157.
[11]GWINNER B.Comportement sous eau des de’chets radioactifs bitume’s:Validation experimentale du modele de degradation COLONBO[D].Nancy,France:Institut National Polytechnique de Lorraine,2004.
[12]HARVEY R G.Polycyclic aromatic hydrocarbons[M].NewYork,USA:Wiley-VCH,1991:31-37.
[13]李海军,黄晓明,王宏畅.道路沥青在使用过程中的水老化[J].石油学报(石油加工),2005,21(4):74-78.LI Haijun,HUANG Xiaoming,WANG Hongchang.Water Aging of asphalt during its service life of pavements[J].Acta Petrolei Sinica(Petroleum Processing Section),2005,21(4):74-78(in Chinese).
[14]YEH P H,NIEN Y H,CHEN J H,et al.Thermal and Rheological properties of maleated polypropylene modified asphalt[J].Polymer Engineering and Science,2005,45(8):1152-1158.
[15]BIAN F L.Expermiental study of water aging on asphalt during service life of pavements[J].Journal of Southeast University(English Edition),2010,26(4):618-621.
[16]张淑艳.废胶粉改性沥青的微观结构及粘弹性性能研究[D].呼和浩特:内蒙古工业大学,2008.ZHANG Shuyan.Research on waster rubber powder modified asphalt microstructure and rheological properties[D].Hohhot:Inner Mongolia University of Technology,2008(in Chinese).
[17]赵海.氯化钠对沥青性能影响研究[J].中外公路,2014,34(3):316-320.ZHAO Hai.Study on effect of sodium chloride on the performance of asphalt[J].Journal of China&Foreign Highway,2014,34(3):316-320(in Chinese).
[18]龚明辉.基于原子力显微镜的沥青微观自愈机理研究和定量分析[D].南京:东南大学,2014.GONG Minghui.Research on the micro-healing mechanism of asphalt with atomic force microscopy and quantitative analysis[D].Nanjing:Southeast University,2014(in Chinese).
[19]杨军,龚明辉,PAULI Troy,等.基于原子力显微镜的沥青微观结构研究[J].石油学报(石油加工),2015,31(4):959-964.YANG Jun,GONG Minghui,PAULI Troy,et al.Study on micro-structures of asphalt by using atomic force microscopy.Acta Petrolei Sinica(Petroleum Processing Section),2015,31(4):959-964(in Chinese).
[2]李兆生.冻融循环对沥青混合料力学性能的影响[J].哈尔滨工程大学学报,2014,35(3):378-381.LI Zhaosheng.The effects of the freeze-thaw cycle on the mechanical properties of the asphalt mixture[J].Journal of Harbin Engineering University,2014,35(3):378-381(in Chinese).
[3]FENG D C,YI J Y.Impact of salt and freeze-thaw cycles on performance of asphalt mixtures in coastal frozen region of China[J].Cold Regions Science and Technology,2010(62):34-41(in Chinese).
[4]CHENG Yuan.Prospect for application of water rubber power[J].China Synthetic Rubber Industry,2001,24(2):65-66.
[5]BAEK S H,KIM H H,DOH Y S,et al.Estimation of hightemperature properties of rubberized asphalt using chromatograph[J].KSCE Journal of Civil Engineering,2009,13(3):161-167.
[6]严以莎.盐分对沥青及沥青混合料路用性能影响的分析研究[D].西安:长安大学,2007.YAN Yisha.Research of the influence about the performance of asphalt and asphalt mixture by sulfate.[D].Xi’an:Chang’an University,2007(in Chinese).
[7]刘振正.盐冻循环条件下沥青材料的性能研究[D].呼和浩特:内蒙古工业大学,2013.LIU Zhenzheng.Research on the performance change of asphalt under the salt freezing circulation[D].Hohhot:Inner Mongolia University of Technology,2013(in Chinese).
[8]姜睆.沥青胶浆自愈合能力研究[D].武汉:武汉理工大学,2011.JIANG Wan.Research on the self-healing capacity of bitumen mastics[D].Wuhan:Wuhan University of Science and Technology,2011(in Chinese).
[9]邹桂莲,张肖宁,韩传代.应用DSR评价沥青胶浆路用性能的研究[J].哈尔滨建筑大学学报,2001,34(3):112-115.ZOU Guilian,ZHANG Xiaoning,HAN Chuandai.Utilization of DSR for evaluation of pavement performance[J].Journal of Harbin University of C.E and Architecture,2001,34(3):112-115(in Chinese).
[10]CAMARO S,SIMONDI-TEISSEIRE B,VISTOLI P P.Long-term behaviour of bituminized waste[C]∥Proceedings of the International Workshop on the Safety and Performance Evaluation of Bituminization Processes for Radioactive Waste.Czech Republic:Nuclear Research Institute Rez,1999:157.
[11]GWINNER B.Comportement sous eau des de’chets radioactifs bitume’s:Validation experimentale du modele de degradation COLONBO[D].Nancy,France:Institut National Polytechnique de Lorraine,2004.
[12]HARVEY R G.Polycyclic aromatic hydrocarbons[M].NewYork,USA:Wiley-VCH,1991:31-37.
[13]李海军,黄晓明,王宏畅.道路沥青在使用过程中的水老化[J].石油学报(石油加工),2005,21(4):74-78.LI Haijun,HUANG Xiaoming,WANG Hongchang.Water Aging of asphalt during its service life of pavements[J].Acta Petrolei Sinica(Petroleum Processing Section),2005,21(4):74-78(in Chinese).
[14]YEH P H,NIEN Y H,CHEN J H,et al.Thermal and Rheological properties of maleated polypropylene modified asphalt[J].Polymer Engineering and Science,2005,45(8):1152-1158.
[15]BIAN F L.Expermiental study of water aging on asphalt during service life of pavements[J].Journal of Southeast University(English Edition),2010,26(4):618-621.
[16]张淑艳.废胶粉改性沥青的微观结构及粘弹性性能研究[D].呼和浩特:内蒙古工业大学,2008.ZHANG Shuyan.Research on waster rubber powder modified asphalt microstructure and rheological properties[D].Hohhot:Inner Mongolia University of Technology,2008(in Chinese).
[17]赵海.氯化钠对沥青性能影响研究[J].中外公路,2014,34(3):316-320.ZHAO Hai.Study on effect of sodium chloride on the performance of asphalt[J].Journal of China&Foreign Highway,2014,34(3):316-320(in Chinese).
[18]龚明辉.基于原子力显微镜的沥青微观自愈机理研究和定量分析[D].南京:东南大学,2014.GONG Minghui.Research on the micro-healing mechanism of asphalt with atomic force microscopy and quantitative analysis[D].Nanjing:Southeast University,2014(in Chinese).
[19]杨军,龚明辉,PAULI Troy,等.基于原子力显微镜的沥青微观结构研究[J].石油学报(石油加工),2015,31(4):959-964.YANG Jun,GONG Minghui,PAULI Troy,et al.Study on micro-structures of asphalt by using atomic force microscopy.Acta Petrolei Sinica(Petroleum Processing Section),2015,31(4):959-964(in Chinese).