基于改进S-VECD模型的沥青胶浆疲劳寿命预估
|
摘要
为了分析沥青结合料和填料体积分数对沥青胶浆疲劳特性的影响,研究沥青胶浆应力-应变、材料完整性系数与强度损伤演化关系,计算沥青胶浆的疲劳作用次数,采用石灰石磨细矿粉、SK90和KL70基质沥青,分别制备4种不同填料体积分数的沥青胶浆。基于黏弹性连续损伤理论和疲劳破坏准则,建立了线性振幅扫描(LAS)试验沥青胶浆疲劳寿命预估模型(S-VECD),利用有限测试结果,预测在给定的加载历史中材料的损伤演化及疲劳寿命。同时,对沥青胶浆进行温度-频率扫描,根据时间-温度叠加原理和CAM模型,建立动态剪切模量主曲线,计算双对数坐标轴下频率-模量主曲线斜率和移位因子,作为疲劳寿命预估模型的输入参数。研究结果表明:填料的加入使沥青胶浆LAS应力-应变曲线峰值宽度减小,胶浆的应变依赖性增加;沥青胶浆的最大允许应变随填料体积分数增大呈现先增加后减小的趋势,且存在最佳体积分数;随着填料体积分数的增加,强度损伤参数S与材料完整性系数C~*曲线斜率的绝对值增大,材料破坏速度加快;在相同的温度和测试频率下,随着填料体积分数的增加,沥青胶浆的疲劳寿命减小;在相同的填料体积分数下,基质沥青的疲劳寿命越大,其对应的沥青胶浆疲劳寿命也越大;沥青与填料之间相互作用系数越大,沥青胶浆疲劳性能越好。
To study the effect of asphalt binder and filler volume fraction on the fatigue properties of asphalt mastics, the relation between shear stress and strain was analyzed and the fatigue loading times were calculated. SK90 and KL70 asphalts and a limestone filler were selected to fabricate asphalt mastics of four different filler volume fractions. The strain sweep test and a simplified viscoelastic continuum damage(S-VECD) model, which can predict the fatigue life of materials in a given loading history using a series of limited tests, were used to predict the fatigue loading times of asphalt mastics. Temperature-frequency sweep tests were conducted and complex modulus master curves were obtained according to the time-temperature equivalence principle. The CAM model was applied to fit the master curve. The slope of the frequency-modulus curve in double logarithmic coordinates and the shift factor were used as the input parameters of the S-VECD model. The results showed that adding fillers to asphalt decreased the peak width of the LAS stress-strain curves of the asphalt mastic and its strain dependence increases with the growth of filler volume fraction. There is an optimal volume fraction at which point the maximum allowable stress occurs. The fatigue life of asphalt mastics decreases with an increase in the filler volume fraction, and the better the fatigue property of the asphalt binder at the same filler volume fraction. The physico-chemical interaction between the asphalt and filler, the better the fatigue property of the corresponding mastics. 5 tabs, 14 figs, 19 refs.
To study the effect of asphalt binder and filler volume fraction on the fatigue properties of asphalt mastics, the relation between shear stress and strain was analyzed and the fatigue loading times were calculated. SK90 and KL70 asphalts and a limestone filler were selected to fabricate asphalt mastics of four different filler volume fractions. The strain sweep test and a simplified viscoelastic continuum damage(S-VECD) model, which can predict the fatigue life of materials in a given loading history using a series of limited tests, were used to predict the fatigue loading times of asphalt mastics. Temperature-frequency sweep tests were conducted and complex modulus master curves were obtained according to the time-temperature equivalence principle. The CAM model was applied to fit the master curve. The slope of the frequency-modulus curve in double logarithmic coordinates and the shift factor were used as the input parameters of the S-VECD model. The results showed that adding fillers to asphalt decreased the peak width of the LAS stress-strain curves of the asphalt mastic and its strain dependence increases with the growth of filler volume fraction. There is an optimal volume fraction at which point the maximum allowable stress occurs. The fatigue life of asphalt mastics decreases with an increase in the filler volume fraction, and the better the fatigue property of the asphalt binder at the same filler volume fraction. The physico-chemical interaction between the asphalt and filler, the better the fatigue property of the corresponding mastics. 5 tabs, 14 figs, 19 refs.
引文
[1] UNDERWOOD B S,KIM Y R.Nonlinear viscoelastic analysis of asphalt cement and asphalt mastics[J].International Journal of Pavement Engineering,2015,16(6):510-529.
[2] KIM Y R,SOUZA F V,PARK T.Multiscale modeling of damage evolution in viscoelastic bituminous mixtures subjected to cyclic loading[J].Journal of Engineering Materials and Technology,2013,135:315-324.
[3] SUDO L T,KIM Y R,SOUZA F V,et al.Multiscale model for asphalt mixtures subjected to cracking and viscoelastic deformation[J].Transportation Research Record,2014(2447):136-145.
[4] 柳浩,李晓民,张肖宁,等.消石灰与矿粉沥青胶浆流变性能比较[J].北京工业大学学报,2009,35(11):1506-1511.LIU Hao,LI Xiao-min,ZHANG Xiao-ning,et al.Compared rheology of asphalt mastics performance with hydrated lime and limestone filler[J].Journal of Beijing University of Technology,2009,35(11):1506-1511.
[5] 王树杰,蒋龙松,樊亮,等.沥青胶浆的疲劳性能研究[J].石油沥青,2015,29(6):7-11.WANG Shu-jie,JIANG Long-song,FAN Liang,et al.Study on the fatigue performance of asphalt mortar[J].Petroleum Asphalt,2015,29(6):7-11.
[6] 白琦峰,钱振东,赵延庆.基于流变学的沥青抗疲劳性能评价方法[J],北京工业大学学报,2012,38(10):1536-1542.BAI Qi-feng,QIAN Zhen-dong,ZHAO Yan-qing.Asphalt fatigue resistance evaluation method based on the rheology[J].Journal of Beijing University of Technology,2012,38(10):1536-1542.
[7] AASHTO 2014,Estimating damage tolerance of asphalt binders using the linear amplitude sweep[S].
[8] 单丽岩,谭忆秋,许亚男,等.应力、应变控制模式下沥青疲劳损伤演化规律[J].中国公路学报,2016,29(1):16-21,74.SHAN Li-yan,TAN Yi-qiu,XU Ya-nan,et al.Fatigue damage evaluation rules of asphalt under controlled-stress and controlled strain modes[J].China Journal of Highway and Transport,2016,29(1):16-21,74.
[9] KIM Y R,LEE H J,LITTLE D N.Fatigue characterization of asphalt concrete using viscoelasticity and continuum damage theory[J].Journal of the Association of Asphalt Paving Technologists,1997,66:520-569.
[10] DANIEL J S,KIM Y R.Development of a simplified fatigue test and analysis procedure using a viscoelastic,continuum damage model (with discussion)[J].Journal of the Association of Asphalt Paving Technologists,2002,71:619-650.
[11] WANG C,XIE W,CHEN Y Z.Refining the calculation method for fatigue failure criterion of asphalt binder from linear amplitude sweep test[J].Journal of Material in Civil Engineering,2018,30(2):241-263.
[12] MICAELO R,PEREIRA A,QUARESMA L.Fatigue resistance of asphalt binders:Assessment of the analysis methods in strain-controlled tests[J].Construction and Building Material,2015,98:703-712.
[13] WANG Y,CHAO W,BAHIA H.Comparison of the fatigue failure behaviour for asphalt binder using both cyclic and monotonic loading modes[J].Construction and Building Material,2017,151:767-774.
[14] FARINAZ S,CASSIE C.Material non linearity in asphalt binder fatigue testing and analysis[J].Materials and Design,2017,133:376-389.
[15] WEI X,CASTORENA C,WAND C.A framework to characterize the healing potential of asphalt binder using the linear amplitude sweep test[J].Construction and Building Material,2017,153:771-779.
[16] DHARAMVEER S,SHASHIBHUSHAN G,ASHISH P K.Performance evaluation of polymer-modified binder containing reclaimed asphalt pavement using multiple stress creep recovery and linear amplitude sweep tests[J].Journal of Material in Civil Engineering,2018,30(3):142-155.
[17] DAS A K,SINGH D.Effects of basalt and hydrated lime fillers on rheological and fracture cracking behavior of polymer modified asphalt mastic[J].Journal of Material in Civil Engineering,2018,30(3):102-117.
[18] FAHEEM A,WEN H,STEPHENSON L,et al.Effect of mineral filler on damage resistance characteristics of asphalt binders[J].Journal of the Association of Asphalt Paving Technologists,2008,77:885-908.
[19] CLOPOTEL C,VELASQUEZ R,BAHIA H.Measuring physico-chemical interaction in mastics using glass transition[J].Road Materials and Pavement Design,2012,13:304-320.
[2] KIM Y R,SOUZA F V,PARK T.Multiscale modeling of damage evolution in viscoelastic bituminous mixtures subjected to cyclic loading[J].Journal of Engineering Materials and Technology,2013,135:315-324.
[3] SUDO L T,KIM Y R,SOUZA F V,et al.Multiscale model for asphalt mixtures subjected to cracking and viscoelastic deformation[J].Transportation Research Record,2014(2447):136-145.
[4] 柳浩,李晓民,张肖宁,等.消石灰与矿粉沥青胶浆流变性能比较[J].北京工业大学学报,2009,35(11):1506-1511.LIU Hao,LI Xiao-min,ZHANG Xiao-ning,et al.Compared rheology of asphalt mastics performance with hydrated lime and limestone filler[J].Journal of Beijing University of Technology,2009,35(11):1506-1511.
[5] 王树杰,蒋龙松,樊亮,等.沥青胶浆的疲劳性能研究[J].石油沥青,2015,29(6):7-11.WANG Shu-jie,JIANG Long-song,FAN Liang,et al.Study on the fatigue performance of asphalt mortar[J].Petroleum Asphalt,2015,29(6):7-11.
[6] 白琦峰,钱振东,赵延庆.基于流变学的沥青抗疲劳性能评价方法[J],北京工业大学学报,2012,38(10):1536-1542.BAI Qi-feng,QIAN Zhen-dong,ZHAO Yan-qing.Asphalt fatigue resistance evaluation method based on the rheology[J].Journal of Beijing University of Technology,2012,38(10):1536-1542.
[7] AASHTO 2014,Estimating damage tolerance of asphalt binders using the linear amplitude sweep[S].
[8] 单丽岩,谭忆秋,许亚男,等.应力、应变控制模式下沥青疲劳损伤演化规律[J].中国公路学报,2016,29(1):16-21,74.SHAN Li-yan,TAN Yi-qiu,XU Ya-nan,et al.Fatigue damage evaluation rules of asphalt under controlled-stress and controlled strain modes[J].China Journal of Highway and Transport,2016,29(1):16-21,74.
[9] KIM Y R,LEE H J,LITTLE D N.Fatigue characterization of asphalt concrete using viscoelasticity and continuum damage theory[J].Journal of the Association of Asphalt Paving Technologists,1997,66:520-569.
[10] DANIEL J S,KIM Y R.Development of a simplified fatigue test and analysis procedure using a viscoelastic,continuum damage model (with discussion)[J].Journal of the Association of Asphalt Paving Technologists,2002,71:619-650.
[11] WANG C,XIE W,CHEN Y Z.Refining the calculation method for fatigue failure criterion of asphalt binder from linear amplitude sweep test[J].Journal of Material in Civil Engineering,2018,30(2):241-263.
[12] MICAELO R,PEREIRA A,QUARESMA L.Fatigue resistance of asphalt binders:Assessment of the analysis methods in strain-controlled tests[J].Construction and Building Material,2015,98:703-712.
[13] WANG Y,CHAO W,BAHIA H.Comparison of the fatigue failure behaviour for asphalt binder using both cyclic and monotonic loading modes[J].Construction and Building Material,2017,151:767-774.
[14] FARINAZ S,CASSIE C.Material non linearity in asphalt binder fatigue testing and analysis[J].Materials and Design,2017,133:376-389.
[15] WEI X,CASTORENA C,WAND C.A framework to characterize the healing potential of asphalt binder using the linear amplitude sweep test[J].Construction and Building Material,2017,153:771-779.
[16] DHARAMVEER S,SHASHIBHUSHAN G,ASHISH P K.Performance evaluation of polymer-modified binder containing reclaimed asphalt pavement using multiple stress creep recovery and linear amplitude sweep tests[J].Journal of Material in Civil Engineering,2018,30(3):142-155.
[17] DAS A K,SINGH D.Effects of basalt and hydrated lime fillers on rheological and fracture cracking behavior of polymer modified asphalt mastic[J].Journal of Material in Civil Engineering,2018,30(3):102-117.
[18] FAHEEM A,WEN H,STEPHENSON L,et al.Effect of mineral filler on damage resistance characteristics of asphalt binders[J].Journal of the Association of Asphalt Paving Technologists,2008,77:885-908.
[19] CLOPOTEL C,VELASQUEZ R,BAHIA H.Measuring physico-chemical interaction in mastics using glass transition[J].Road Materials and Pavement Design,2012,13:304-320.