基于衰减全反射红外光谱技术的水在沥青中扩散过程研究
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摘要
采用衰减全反射傅里叶红外光谱技术,以羟基伸缩振动峰面积为量化指标,研究了水在沥青中的扩散过程,并探讨了温度、压力和沥青老化等因素对水在沥青中扩散系数的影响.结果表明:扩散入沥青中的水的总量与羟基伸缩振动峰面积之间存在对应关系;水在沥青中的扩散过程可分为2个阶段,第一阶段以吸收自由水为主,扩散系数较高,第二阶段以水分子与沥青分子或极性基团的结合为主,扩散系数较低;温度和压力的提高均会增强水在沥青中的扩散能力;老化会降低沥青对水扩散的抵抗能力,使水在沥青中扩散的第一阶段显著加快.
The peak area of hydroxyl stretching vibration was quantified to study the diffusion process of water in asphalt by Fourier transform infrared-attenuated total reflectance spectroscopy(FTIR-ATR), and the influences of temperature, pressure and asphalt aging were also investigated. The results show that there is a correspondence between the area of the OH stretching and the water content diffusing into asphalt. Moreover, the diffusion process can be divided into two stages, in the first stage the priority is given to absorbing free water with a higher diffusion coefficient, and in the second stage water molecules and asphalt molecules or polar group are combined, the diffusion coefficient decreases correspondingly. The increase of temperature and pressure enhances the diffusion ability of water in asphalt. Meanwhile, aging can reduce the resistance of asphalt to water diffusion and accelerate the diffusion of water, especially in the first diffusion stage.
The peak area of hydroxyl stretching vibration was quantified to study the diffusion process of water in asphalt by Fourier transform infrared-attenuated total reflectance spectroscopy(FTIR-ATR), and the influences of temperature, pressure and asphalt aging were also investigated. The results show that there is a correspondence between the area of the OH stretching and the water content diffusing into asphalt. Moreover, the diffusion process can be divided into two stages, in the first stage the priority is given to absorbing free water with a higher diffusion coefficient, and in the second stage water molecules and asphalt molecules or polar group are combined, the diffusion coefficient decreases correspondingly. The increase of temperature and pressure enhances the diffusion ability of water in asphalt. Meanwhile, aging can reduce the resistance of asphalt to water diffusion and accelerate the diffusion of water, especially in the first diffusion stage.
引文
[1] VASCONCELOS K L,BHASIN A,LITTLE D N.Measurement of water diffusion in asphalt binders using Fourier transform infrared-attenuated total reflectance[J].Transportation Research Record Journal of the Transportation Research Board,2010,2179(1):29-38.
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[3] LITTLE D N,BHASIN A.Using surface energy measurements to select materials for asphalt pavement[M].[S.l.]:NCHRP Web Document,2006:1-4.
[4] 刘亚敏,韩森,李波.基于表面能理论的沥青与矿料黏附性研究[J].建筑材料学报,2010,13(6):769-772.LIU Yamin,HAN Sen,LI Bo.Research on adhesion between asphalt and aggregate based on surface energy theory[J].Journal of Building Materials,2010,13(6):769-772.(in Chinese)
[5] 李波,张智豪,刘祥,等.基于表面理论的温拌SBS改性沥青-集料体系的粘附性[J].材料导报,2017,31(2):115-120.LI Bo,ZHANG Zhihao,LIU Xiang,et al.Adhesion in SBS modified asphalt containing warm mix additive and aggregate system based on surface free theory[J].Materials Review,2017,31(2):115-120.(in Chinese)
[6] 宋艳茹,王成秀,张玉贞.道路沥青水损害组分及其影响因素[J].中国石油大学学报(自然科学版),2011,35(4):172-176.SONG Yanru,WANG Chengxiu,ZHANG Yuzhen.Moisture damage-component of road asphalt and its influence factors[J].Journal of China University of Petroleum(Natural Science),2011,35(4):172-176.(in Chinese)
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[9] VASCONCELOS K L,BHASIN A,LITTLE D N.History dependence of water diffusion in asphalt binders[J].International Journal of Pavement Engineering,2011,12(5):497-506.
[10] 李波,陈占权,刘祥,等.温拌SBS改性沥青浸水前后的纳观粘附特性[J].建筑材料学报,2018,21(1):60-66.LI Bo,CHEN Zhanquan,LIU Xiang,et al.Nano-adhesive characteristics of SBS modified asphalt containing warm mix additive before and after immersion in water[J].Journal of Building Materials,2018,21(1):60-66.(in Chinese)
[11] 李炜光,段炎红,颜录科,等.利用石油沥青红外谱图谱特征测定沥青的方法研究[J].石油沥青,2012,26(4):9-14.LI Weiguang,DUAN Yanhong,YAN Luke,et al.Study on measure method of asphalt using infrared spectrum characteristic of petroleum pitch[J].Petroleum Asphalt,2012,26(4):9-14.(in Chinese)
[12] 孙大权,张立文.SBS改性沥青中SBS含量测试方法研究[J].建筑材料学报,2013,16(1):180-184.SUN Daquan,ZHANG Liwen.Quantitative determination of SBS content in SBS modified asphalt[J].Journal of Building Materials,2013,16(1):180-184.(in Chinese)
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[14] 肖鹏,康爱红,李雪峰.基于红外光谱法的SBS改性沥青共混机理[J].江苏大学学报(自然科学版),2005,26(6):78-81.XIAO Peng,KANG Aihong,LI Xuefeng.Cross blend mechanism of SBS modified asphalt based on infrared spectra[J].Journal of Jiangsu University(Natural Science),2005,26(6):78-81.(in Chinese)
[15] 李立寒,张明杰,祁文洋.老化SBS改性沥青再生与机理分析[J].长安大学学报(自然科学版),2017,37(3):1-8.LI Lihan,ZHANG Mingjie,QI Wenyang.Regeneration of aged SBS modified asphalt and its mechanism analysis[J].Journal of Chang'an University(Natural Science),2017,37(3):1-8.(in Chinese)
[16] KARLSSON R,ISACSSON U.Application of FTIR-ATR to characterization of bitumen rejuvenator diffusion[J].Journal of Materials in Civil Engineering,2003,15(2):157-165.
[17] BAGAMPADDE U,KARLSSON R.Laboratory studies on stripping at bitumen/substrate interfaces using FTIR-ATR[J].Journal of Materials Science,2007,42(9):3197-3206.
[18] LIU M,WU P,DING Y,et al.Two-dimensional(2D) ATR-FTIR spectroscopic study on water diffusion in cured epoxy resins[J].Acta Chimica Sinica,2004,62(17):1641-1644.
[19] JIN Y,WANG W,SU Z.Spectroscopic study on water diffusion in aromatic polyamide thin film[J].Journal of Membrane Science,2011,379(1-2):121-130.
[20] FIELDSON G T,BARBARI T A.The use of FTIR-ATR spectroscopy to characterize penetrant diffusion in polymers[J].Polymer,1993,34(93):1146-1153.
[21] BARRIE J A.Diffusion in polymers[J].Polymer Engineering & Science,1994,302(20):252-258.
[2] HEFER A W.Adhesion in bitumen-aggregate systems and quantification of the effect of water on the adhesive bond[M].Texas:Texas Transportation Institute,2005.
[3] LITTLE D N,BHASIN A.Using surface energy measurements to select materials for asphalt pavement[M].[S.l.]:NCHRP Web Document,2006:1-4.
[4] 刘亚敏,韩森,李波.基于表面能理论的沥青与矿料黏附性研究[J].建筑材料学报,2010,13(6):769-772.LIU Yamin,HAN Sen,LI Bo.Research on adhesion between asphalt and aggregate based on surface energy theory[J].Journal of Building Materials,2010,13(6):769-772.(in Chinese)
[5] 李波,张智豪,刘祥,等.基于表面理论的温拌SBS改性沥青-集料体系的粘附性[J].材料导报,2017,31(2):115-120.LI Bo,ZHANG Zhihao,LIU Xiang,et al.Adhesion in SBS modified asphalt containing warm mix additive and aggregate system based on surface free theory[J].Materials Review,2017,31(2):115-120.(in Chinese)
[6] 宋艳茹,王成秀,张玉贞.道路沥青水损害组分及其影响因素[J].中国石油大学学报(自然科学版),2011,35(4):172-176.SONG Yanru,WANG Chengxiu,ZHANG Yuzhen.Moisture damage-component of road asphalt and its influence factors[J].Journal of China University of Petroleum(Natural Science),2011,35(4):172-176.(in Chinese)
[7] 魏建明.沥青、集料的表面自由能及水分在沥青中的扩散研究[D].东营:中国石油大学(华东),2008.WEI Jianming.Study on surface free energy of asphalt,aggregate and moisture diffusion in asphalt[D].Dongying:China University of Petroleum(East China),2008.(in Chinese)
[8] AHMAD M,MANNAN U A,ISLAM M R,et al.Chemical and mechanical changes in asphalt binder due to moisture conditioning[J].Road Materials and Pavement Design,2018,19(5):1216-1229.
[9] VASCONCELOS K L,BHASIN A,LITTLE D N.History dependence of water diffusion in asphalt binders[J].International Journal of Pavement Engineering,2011,12(5):497-506.
[10] 李波,陈占权,刘祥,等.温拌SBS改性沥青浸水前后的纳观粘附特性[J].建筑材料学报,2018,21(1):60-66.LI Bo,CHEN Zhanquan,LIU Xiang,et al.Nano-adhesive characteristics of SBS modified asphalt containing warm mix additive before and after immersion in water[J].Journal of Building Materials,2018,21(1):60-66.(in Chinese)
[11] 李炜光,段炎红,颜录科,等.利用石油沥青红外谱图谱特征测定沥青的方法研究[J].石油沥青,2012,26(4):9-14.LI Weiguang,DUAN Yanhong,YAN Luke,et al.Study on measure method of asphalt using infrared spectrum characteristic of petroleum pitch[J].Petroleum Asphalt,2012,26(4):9-14.(in Chinese)
[12] 孙大权,张立文.SBS改性沥青中SBS含量测试方法研究[J].建筑材料学报,2013,16(1):180-184.SUN Daquan,ZHANG Liwen.Quantitative determination of SBS content in SBS modified asphalt[J].Journal of Building Materials,2013,16(1):180-184.(in Chinese)
[13] BOWERS B F,HUANG B,SHU X,et al.Investigation of reclaimed asphalt pavement blending efficiency through GPC and FTIR[J].Construction & Building Materials,2014,50:517-523.
[14] 肖鹏,康爱红,李雪峰.基于红外光谱法的SBS改性沥青共混机理[J].江苏大学学报(自然科学版),2005,26(6):78-81.XIAO Peng,KANG Aihong,LI Xuefeng.Cross blend mechanism of SBS modified asphalt based on infrared spectra[J].Journal of Jiangsu University(Natural Science),2005,26(6):78-81.(in Chinese)
[15] 李立寒,张明杰,祁文洋.老化SBS改性沥青再生与机理分析[J].长安大学学报(自然科学版),2017,37(3):1-8.LI Lihan,ZHANG Mingjie,QI Wenyang.Regeneration of aged SBS modified asphalt and its mechanism analysis[J].Journal of Chang'an University(Natural Science),2017,37(3):1-8.(in Chinese)
[16] KARLSSON R,ISACSSON U.Application of FTIR-ATR to characterization of bitumen rejuvenator diffusion[J].Journal of Materials in Civil Engineering,2003,15(2):157-165.
[17] BAGAMPADDE U,KARLSSON R.Laboratory studies on stripping at bitumen/substrate interfaces using FTIR-ATR[J].Journal of Materials Science,2007,42(9):3197-3206.
[18] LIU M,WU P,DING Y,et al.Two-dimensional(2D) ATR-FTIR spectroscopic study on water diffusion in cured epoxy resins[J].Acta Chimica Sinica,2004,62(17):1641-1644.
[19] JIN Y,WANG W,SU Z.Spectroscopic study on water diffusion in aromatic polyamide thin film[J].Journal of Membrane Science,2011,379(1-2):121-130.
[20] FIELDSON G T,BARBARI T A.The use of FTIR-ATR spectroscopy to characterize penetrant diffusion in polymers[J].Polymer,1993,34(93):1146-1153.
[21] BARRIE J A.Diffusion in polymers[J].Polymer Engineering & Science,1994,302(20):252-258.