基于红外光谱分析的改性沥青SBS含量快速测定技术
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摘要
为研究改性沥青中SBS改性剂含量的快速测定技术,基于红外光谱分析法,采用Bruker Alpha红外光谱设备获得不同改性剂含量的SBS改性沥青红外光谱图,利用OPUS处理软件测定966、1 456、1 602、2 852、2 921 cm~(-1)等特征吸收峰处的峰值面积与峰高值,并建立上述特征参数与SBS改性剂含量关系的回归模型,并对回归模型的准确性进行验证。同时,为了进一步消除溴化钾压片厚度对试验结果的影响,选用基质沥青的2个特征吸收峰813、1 377 cm~(-1),采用吸光度比值的方法(SBS改性剂的特征吸收峰参数与其和基质沥青的特征吸收峰参数之和的比值作为回归变量)进行回归分析。研究结果表明:966 cm~(-1)特征峰为SBS改性剂中碳碳双键上碳氢键的专属弯曲振动峰,与SBS含量之间具有高度的线性相关性;无论是813还是1 377 cm~(-1),采用特征吸收峰值面积均比峰高度值回归的精度更高,而且813 cm~(-1)比1 377 cm~(-1)作为特征吸收峰的相关性更好;最终选用966 cm~(-1)的峰值面积与其和813 cm~(-1)峰值面积之和的比值作为回归参数,与SBS改性剂含量之间的回归精度高达0.992 5,检测结果误差仅为0.1%。此外,通过改变SBS改性沥青种类、改性剂类型和稳定剂类型,验证该检测方法的适用性,其相对误差同样可以控制在5%以内。研究结果可为实际工程中SBS改性沥青中SBS的含量快速、准确测定提供参考。
In order to study the rapid detection method of styrene-butadiene-styrene(SBS) modifier content in modified asphalt, infrared spectrograms of SBS modified asphalt with different modifier contents were obtained based on infrared spectrum analysis, using a Bruker Alpha infrared spectrometer. The peak areas and peak heights at 966, 1 456, 1 602, 2 852, 2 921 cm~(-1) were measured by OPUS software, and a regression model of the above characteristic parameters and SBS modifier content was also established, and the accuracy of the regression model was verified. In order to eliminate the influence of potassium bromide tablet thickness, two characteristic absorption peaks of matrix asphalt, i.e., 813 and 1 377 cm~(-1), were selected using the absorbance ratio(the ratio of the characteristic absorption peak parameters of the SBS modifier to the sum of the characteristic absorption peak parameters of matrix bitumen and SBS modifier) as regression variables. The results show that the characteristic peak of 966 cm~(-1) is the specific flexural vibration peak of the SBS modifier, and has a highly linear correlation with SBS content. For both 1 377 or 813 cm~(-1), the regression precision of the peak area is higher than that of the peak height. The characteristic absorption peak of 813 cm~(-1) as the matrix bitumen is better than that of the 1 377 cm~(-1) characteristic peak. Therefore, the ratio of the peak area of 966 cm~(-1) to the sum of peak area between 813 and 966 cm~(-1) is chosen as a regression parameter. The regression accuracy between the peak area and SBS modifier content is up to 0.992 5, and the error of the test results is approximately 0.1%. The applicability of this detection method is also verified by changing the types of SBS-modified asphalt, modifier, and stabilizer. The resulting relative error can also be controlled below 5%. The research results can provide a reference for the rapid and accurate determination of SBS content in SBS-modified asphalt in actual engineering practice. 12 tabs,12 figs,24 refs.
In order to study the rapid detection method of styrene-butadiene-styrene(SBS) modifier content in modified asphalt, infrared spectrograms of SBS modified asphalt with different modifier contents were obtained based on infrared spectrum analysis, using a Bruker Alpha infrared spectrometer. The peak areas and peak heights at 966, 1 456, 1 602, 2 852, 2 921 cm~(-1) were measured by OPUS software, and a regression model of the above characteristic parameters and SBS modifier content was also established, and the accuracy of the regression model was verified. In order to eliminate the influence of potassium bromide tablet thickness, two characteristic absorption peaks of matrix asphalt, i.e., 813 and 1 377 cm~(-1), were selected using the absorbance ratio(the ratio of the characteristic absorption peak parameters of the SBS modifier to the sum of the characteristic absorption peak parameters of matrix bitumen and SBS modifier) as regression variables. The results show that the characteristic peak of 966 cm~(-1) is the specific flexural vibration peak of the SBS modifier, and has a highly linear correlation with SBS content. For both 1 377 or 813 cm~(-1), the regression precision of the peak area is higher than that of the peak height. The characteristic absorption peak of 813 cm~(-1) as the matrix bitumen is better than that of the 1 377 cm~(-1) characteristic peak. Therefore, the ratio of the peak area of 966 cm~(-1) to the sum of peak area between 813 and 966 cm~(-1) is chosen as a regression parameter. The regression accuracy between the peak area and SBS modifier content is up to 0.992 5, and the error of the test results is approximately 0.1%. The applicability of this detection method is also verified by changing the types of SBS-modified asphalt, modifier, and stabilizer. The resulting relative error can also be controlled below 5%. The research results can provide a reference for the rapid and accurate determination of SBS content in SBS-modified asphalt in actual engineering practice. 12 tabs,12 figs,24 refs.
引文
[1] 黄卫东,傅星恺,李彦伟,等.SBS类改性沥青低温性能评价及指标相关性分析[J].建筑材料学报,2017,20(3):456-463.HUANG Wei-dong,FU Xing-kai,LI Yan-wei,et al.Evaluation of low temperature performance and correlation analysis on low temperature indexes of SBS modified asphalts[J].Journal of Building Materials,2017,20(3):456-463.
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[6] LI Y,WU S,PANG L,et al.Investigation of the effect of Mg-Al-LDH on pavement performance and aging resistance of styrene-butadiene-styrene modified asphalt[J].Construction and Building Materials,2018,172:584-596.
[7] LIN P,HUANG W,TAI N,et al.Understanding the low temperature properties of terminal blend hybrid asphalt through chemical and thermal analysis methods[J].Construction and Building Materials,2018,169:543-552.
[8] WEI J B,SHULL J C,LEE Y J,et al.Characterization of asphalt binders based on chemical and physical properties[J].International Journal of Polymer Analysis and Characterization,1996,3(1):33-58.
[9] CURTIS C W,HANSON D I,CHEN S T,et al.Quantitative determination of polymers in asphalt cements and hot-mix asphalt mixes[J].Transportation Research Record,1995(1488):52-61.
[10] DIEFENDERFER S D.Detection of polymer modifiers in asphalt binder[R].Richmond:Virginia Transportation Research Council,2006.
[11] DB 33/T 989—2005,改性沥青中SBS含量的测定红外光谱法[S].DB 33/T 989—2005,Determination of SBS quantity in modified asphalt:FTIR method[S].
[12] GB/T 6040—2002,红外光谱分析方法通则[S].GB/T 6040—2002,General rules for infrared analysis[S].
[13] 张争奇.聚乙烯塑料改性沥青性能研究[J].重庆交通学院学报,2000,21(4):14-18.ZHANG Zheng-qi.Study on properties of polyethylene plastic modified bitumen[J].Journal of Chongqing Jiaotong University,2000,21(4):14-18.
[14] 高光涛,朱玉堂,王立志.LDPE/SBS共混物改性沥青体系的反应共混行为[J].合成橡胶工业,2003,26(2):98-100.GAO Guang-tao,ZHU Yu-tang,WANG Li-zhi.Reaction blending behavior of LDPE/SBS blend modified asphalt system[J].China Synthetic Rubber Industry,2003,26(2):98-100.
[15] SHRP.Evaluating applications of field spectroscopy devices to fingerprint commonly used construction materials[M].Washington DC:Transportation Research Board.
[16] DALY W H,NEGULESCU I I,YEH P H.Preparation and characterization of asphalt blends containing synthetic polymers[M]//CUNNINGHAM S D,HUANG J W,CHEN J,et al.Abstracts of Papers of the American Chemical Society.Washington DC:American Chemical Society,1998:862-862.
[17] SHRP.Evaluating applications of field spectroscopy devices to fingerprint commonly used construction materials[R].Washington DC:Strategic Highway Research Program,2012.
[18] 陈颖娣,涂娟,章波,等.红外光谱法分析SBS改性沥青的影响因素探讨[J].石油沥青,2014,28(1):67-72.CHEN Ying-di,TU Juan,ZHANG Bo,et al.Discussion on influence factors of SBS modified asphalt by infrared spectroscopy[J].Petroleum Asphalt,2014,28(1):67-72.
[19] ELKASHEF M,WILLIAMS R C,COCHRAN E.Thermal stability and evolved gas analysis of rejuvenated reclaimed asphalt pavement (RAP) bitumen using thermogravimetric analysis-Fourier transform infrared (TG-FTIR) [J].Journal of Thermal Analysis and Calorimetry,2018,131(2):865-871.
[20] FERROTTI G,RAGNI D,LU X,et al.Effect of warm mix asphalt chemical additives on the mechanical performance of asphalt binders[J].Materials and Structures,2017,50(5):1-13.
[21] 杨荣臻,肖鹏.基于红外光谱法的SBS改性沥青共混机理分析[J].华东公路,2006(3):529-532.YANG Rong-zhen,XIAO Peng.Analysis of blending mechanism of SBS modified asphalt based on infrared spectroscopy[J].East China Highway,2006(3):529-532.
[22] 刘薇,张季男.改性沥青中SBS含量检测技术应用研究[J].石油沥青,2017,31(1):68-72.LIU Wei,ZHANG Ji-nan.Research on the application of SBS content detection technology in modified asphalt[J].Petroleum Asphalt,2017,31(1):68-72.
[23] 卢杰,曹东伟,刘俊德,等.改性沥青SBS含量测定技术及其工程应用[J].公路交通科技,2016,12(6):25-26.LU Jie,CAO Dong-wei,LIU Jun-de,et al.Determination technology and engineering application of SBS content in modified asphalt[J].Journal of Highway and Transportation Research and Development,2016,12(6):25-26.
[24] 徐志荣,陈忠达,常艳婷,等.改性沥青SBS含量的红外光谱分析[J].长安大学学报:自然科学版,2015,35(2):7-12.XU Zhi-rong,CHEN Zhong-da,CHANG Yan-ting,et al.Application of infrared spectroscopy to detect the dosage of SBS in modified asphalt[J].Journal of Chang'an University:Natural Science Edition,2015,35(2):7-12.
[2] CONG P,LUO W,XU P,et al.Investigation on recycling of SBS modified asphalt binders containing fresh asphalt and rejuvenating agents[J].Construction and Building Materials,2015,91:225-231.
[3] 徐建波,陈键和,陈京治.SBS改性道路沥青[J].石油沥青,1999,13(4):25-34.XU Jian-bo,CHEN Jian-he,CHEN Jing-zhi.SBS modified road asphalt[J].Petroleum Asphalt,1999,13(4):25-34.
[4] SUN N,WANG D,SUN Y,et al.Improvement of traditional method for determination of SBS content in modified asphalt[J].Modern Chemical Industry,2015 35(10):179-181.
[5] 林杰.SBS改性沥青技术性能评价与质量控制研究[D].西安:长安大学,2011.LIN Jie.Research on technical performance evaluation and quality control of SBS modified asphalt[J].Xi'an:Chang'an University,2011.
[6] LI Y,WU S,PANG L,et al.Investigation of the effect of Mg-Al-LDH on pavement performance and aging resistance of styrene-butadiene-styrene modified asphalt[J].Construction and Building Materials,2018,172:584-596.
[7] LIN P,HUANG W,TAI N,et al.Understanding the low temperature properties of terminal blend hybrid asphalt through chemical and thermal analysis methods[J].Construction and Building Materials,2018,169:543-552.
[8] WEI J B,SHULL J C,LEE Y J,et al.Characterization of asphalt binders based on chemical and physical properties[J].International Journal of Polymer Analysis and Characterization,1996,3(1):33-58.
[9] CURTIS C W,HANSON D I,CHEN S T,et al.Quantitative determination of polymers in asphalt cements and hot-mix asphalt mixes[J].Transportation Research Record,1995(1488):52-61.
[10] DIEFENDERFER S D.Detection of polymer modifiers in asphalt binder[R].Richmond:Virginia Transportation Research Council,2006.
[11] DB 33/T 989—2005,改性沥青中SBS含量的测定红外光谱法[S].DB 33/T 989—2005,Determination of SBS quantity in modified asphalt:FTIR method[S].
[12] GB/T 6040—2002,红外光谱分析方法通则[S].GB/T 6040—2002,General rules for infrared analysis[S].
[13] 张争奇.聚乙烯塑料改性沥青性能研究[J].重庆交通学院学报,2000,21(4):14-18.ZHANG Zheng-qi.Study on properties of polyethylene plastic modified bitumen[J].Journal of Chongqing Jiaotong University,2000,21(4):14-18.
[14] 高光涛,朱玉堂,王立志.LDPE/SBS共混物改性沥青体系的反应共混行为[J].合成橡胶工业,2003,26(2):98-100.GAO Guang-tao,ZHU Yu-tang,WANG Li-zhi.Reaction blending behavior of LDPE/SBS blend modified asphalt system[J].China Synthetic Rubber Industry,2003,26(2):98-100.
[15] SHRP.Evaluating applications of field spectroscopy devices to fingerprint commonly used construction materials[M].Washington DC:Transportation Research Board.
[16] DALY W H,NEGULESCU I I,YEH P H.Preparation and characterization of asphalt blends containing synthetic polymers[M]//CUNNINGHAM S D,HUANG J W,CHEN J,et al.Abstracts of Papers of the American Chemical Society.Washington DC:American Chemical Society,1998:862-862.
[17] SHRP.Evaluating applications of field spectroscopy devices to fingerprint commonly used construction materials[R].Washington DC:Strategic Highway Research Program,2012.
[18] 陈颖娣,涂娟,章波,等.红外光谱法分析SBS改性沥青的影响因素探讨[J].石油沥青,2014,28(1):67-72.CHEN Ying-di,TU Juan,ZHANG Bo,et al.Discussion on influence factors of SBS modified asphalt by infrared spectroscopy[J].Petroleum Asphalt,2014,28(1):67-72.
[19] ELKASHEF M,WILLIAMS R C,COCHRAN E.Thermal stability and evolved gas analysis of rejuvenated reclaimed asphalt pavement (RAP) bitumen using thermogravimetric analysis-Fourier transform infrared (TG-FTIR) [J].Journal of Thermal Analysis and Calorimetry,2018,131(2):865-871.
[20] FERROTTI G,RAGNI D,LU X,et al.Effect of warm mix asphalt chemical additives on the mechanical performance of asphalt binders[J].Materials and Structures,2017,50(5):1-13.
[21] 杨荣臻,肖鹏.基于红外光谱法的SBS改性沥青共混机理分析[J].华东公路,2006(3):529-532.YANG Rong-zhen,XIAO Peng.Analysis of blending mechanism of SBS modified asphalt based on infrared spectroscopy[J].East China Highway,2006(3):529-532.
[22] 刘薇,张季男.改性沥青中SBS含量检测技术应用研究[J].石油沥青,2017,31(1):68-72.LIU Wei,ZHANG Ji-nan.Research on the application of SBS content detection technology in modified asphalt[J].Petroleum Asphalt,2017,31(1):68-72.
[23] 卢杰,曹东伟,刘俊德,等.改性沥青SBS含量测定技术及其工程应用[J].公路交通科技,2016,12(6):25-26.LU Jie,CAO Dong-wei,LIU Jun-de,et al.Determination technology and engineering application of SBS content in modified asphalt[J].Journal of Highway and Transportation Research and Development,2016,12(6):25-26.
[24] 徐志荣,陈忠达,常艳婷,等.改性沥青SBS含量的红外光谱分析[J].长安大学学报:自然科学版,2015,35(2):7-12.XU Zhi-rong,CHEN Zhong-da,CHANG Yan-ting,et al.Application of infrared spectroscopy to detect the dosage of SBS in modified asphalt[J].Journal of Chang'an University:Natural Science Edition,2015,35(2):7-12.
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