改性沥青中SBS含量电化学检测法抗干扰指标
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摘要
为了辨别SBS改性沥青中是否掺加SBS类似物或沥青类似物,排除其对改性沥青中SBS含量电化学检测方法的干扰。以橡胶粉、糠醛抽出油和芳烃油为干扰剂加入改性沥青中,模拟不良沥青生产商为降低SBS掺量而使用其生产改性沥青的情况。对不同SBS掺量的改性沥青标准样品进行SBS含量电化学分析试验,建立标准样品滴定体积与SBS掺量标准曲线。同时,对不同SBS掺量的改性沥青标准样品分别进行针入度、延度、软化点、弹性恢复和135℃运动黏度试验,拟合出各技术指标与SBS掺量标准曲线。然后,对不同干扰剂掺量的改性沥青分别进行SBS含量电化学检测和上述性能试验,并建立相应的关系曲线。将掺干扰剂的改性沥青试验关系曲线与改性沥青标准样品试验标准曲线进行对比分析,得到能够识别改性沥青中是否添加上述干扰剂的指标,并对提出的改性沥青中SBS含量电化学检测方法的抗干扰指标进行了可靠性分析。结果表明:延度可用于识别改性沥青中是否掺加了橡胶粉,延度和软化点2个指标可用于识别改性沥青中是否添加了糠醛抽出油和芳烃油,且延度和软化点与SBS含量的相关系数均达0.937以上,通过了显著性检验。
In order to identify whether SBS modified asphalt was mixed with SBS analogs or asphalt analogs,and eliminate the interference of that in the modified asphalt to SBS content electrochemical detection technology.Rubber powder,furfural extract oil,and aromatic oil were added to modified asphalt to simulate the production of modified asphalt with them,in order to reduce the SBS content.Electrochemical tests for the SBS content of the modified asphalt standard sample with different SBS contents were carried out,and the standard curve of the titrationvolume to the SBS content of the standard sample was established.At the same time,the penetration,ductility,softening point,elastic recovery,and 135 ℃ kinematic viscosity of the modified asphalt samples with different SBS contents were tested,the curves of the technical indexes to the standard SBS content were fitted.Then,the modified asphalt samples with different contents of interferences agents were tested by electrochemical detection of the SBS content and the above mentioned performance tests,and the corresponding relationship curves were established.By comparing and analyzing the relation curves obtained from the tests on the modified asphalt samples,with the interference agents and the standard curves obtained from the tests on the modified asphalt standard samples,the indexes that can identify whether or not interference agents were added to modified asphalt could be obtained.The reliability of the proposed index of the electrochemical detection technology for the SBS content of modified asphalt was studied.The results show that ductility can be used to identify whether rubber powder is added to modified asphalt,and the ductility and softening point can be used to identify whether furfural extract oil and aromatic oil are added to modified asphalt.The correlation coefficients of ductility and softening point with SBS content are all above 0.937,which has passed the significance test.6 tabs,14 figs,21 refs.
In order to identify whether SBS modified asphalt was mixed with SBS analogs or asphalt analogs,and eliminate the interference of that in the modified asphalt to SBS content electrochemical detection technology.Rubber powder,furfural extract oil,and aromatic oil were added to modified asphalt to simulate the production of modified asphalt with them,in order to reduce the SBS content.Electrochemical tests for the SBS content of the modified asphalt standard sample with different SBS contents were carried out,and the standard curve of the titrationvolume to the SBS content of the standard sample was established.At the same time,the penetration,ductility,softening point,elastic recovery,and 135 ℃ kinematic viscosity of the modified asphalt samples with different SBS contents were tested,the curves of the technical indexes to the standard SBS content were fitted.Then,the modified asphalt samples with different contents of interferences agents were tested by electrochemical detection of the SBS content and the above mentioned performance tests,and the corresponding relationship curves were established.By comparing and analyzing the relation curves obtained from the tests on the modified asphalt samples,with the interference agents and the standard curves obtained from the tests on the modified asphalt standard samples,the indexes that can identify whether or not interference agents were added to modified asphalt could be obtained.The reliability of the proposed index of the electrochemical detection technology for the SBS content of modified asphalt was studied.The results show that ductility can be used to identify whether rubber powder is added to modified asphalt,and the ductility and softening point can be used to identify whether furfural extract oil and aromatic oil are added to modified asphalt.The correlation coefficients of ductility and softening point with SBS content are all above 0.937,which has passed the significance test.6 tabs,14 figs,21 refs.
引文
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[10]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.
[11]刘鹏,史福泉,王鹏,等.SBS改性沥青红外光谱快速检测方法研究[J].山东建筑大学学报,2018,33(4):13-18.LIU Peng,SHI Fu-quan,WANG Peng,et al.Research on fast detection method of infrared spectrum of SBS modified asphalt[J].Journal of Shangdong Jianzhu University,2018,33(4):13-18.
[12]SENGOZ B,ISIKYAKAR G.Analysis of styrene-butadiene-styrene polymer modified bitumen using fluorescent microscopy and conventional test methods[J].Journal of Hazardous Materials,2008,150(2):424-432.
[13]娄可可,康爱红,寇长江.SBS改性沥青相态结构的参数化表征方法[J].材料科学与工程学报,2016,34(4):638-642.LOU Ke-ke,KANG Ai-hong,KOU Chang-jiang.Parametric characterization method for morphological structure of SBS modified asphalt[J].Journal of Materials Science and Engineering,2016,34(4):638-642.
[14]胡魁,韩森,石伟,等.聚合物改性沥青中SBS面积比的确定及其对沥青使用性能的影响[J].北京工业大学学报,2015,41(5):749-754.HU Kui,HAN Sen,SHI Wei,et al.Research on SBSarea ratio calculation and impact on SBS modified asphalt performance[J].Journal of Beijing University of Technology,2015,41(5):749-754.
[15]耿九光,张倩,戴经梁.基于凝胶渗透色谱法的改性沥青中SBS降解行为研究[J].新型建筑材料,2011,38(5):87-90.GENG Jiu-guang,ZHANG Qian,DAI Jing-liang.Degradation process of SBS in modified asphalt based on gel permeation chromatography analysis[J].New Building Materials,2011,38(5):87-90.
[16]王瑞林,张坤.基于液相色谱改性沥青剂量黏度和针入度测试法研究[J].公路工程,2016(2):173-177.WANG Rui-lin,ZHANG Kun.Study on measurement of dose viscosity and penetration of modified asphalt based on liquid chromatography[J].Highway Engineering,2016(2):173-177.
[17]刘正春,牛艳芳,朱自强,等.基于电位滴定分析的改性沥青中苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)质量分数检测[J].中南大学学报:自然科学版,2015,46(6):2221-2226.LIU Zheng-chun,NIU Yan-fang,ZHU Zi-qiang,et al.Determination of styrene-butadiene-styrene block copolymer in modified asphalt by potentiometric titration[J].Journal of Central South University:Natural Science Edition,2015,46(6):2221-2226.
[18]唐洁琼.沥青材料的快速识别与分析方法研究[D].北京:北京化工大学,2015.TANG Jie-qiong.Research on rapid recognition and analysis of asphalt materials[D].Beijing:Beijing University of Chemical Technology,2015.
[19]孙培,韩森,高榕,等.适用于SBS改性沥青针入度的测试方法研究[J].铁道科学与工程学报2017,14(10):2130-2137.SUN Pei,HAN Sen,GAO Rong,et al.Research on penetration test method for SBS modified asphalt[J].Journal of Railway Science and Engineering,2017,14(10):2130-2137.
[20]李永振,武世超,高涵,等.添加剂对SBS改性沥青性能的影响[J].中外公路,2016,36(1):235-238.LI Yong-zhen,WU Shi-chao,GAO Han,et al.Effect of additives on performance of SBS modified asphalt[J].Chinese and Foreign Highways,2016,36(1):235-238.
[21]冯新军,折广兵,朱自强.增容剂和稳定剂对SBS改性沥青技术性能的影响研究[J].公路,2015(3):159-163.FENG Xin-jun,SHE Guang-bing,ZHU Zi-qiang.Effect of compatibilizer and stabilizer on technical properties of SBS modified asphalt[J].Highway,2015(3):159-163.
[2]AL-HADIDY A I,TAN Y Q.Effect of styrene-butadiene-styrene on the properties of asphalt and stonematrix-asphalt mixture[J].Journal of Materials in Civil Engineering,2011,23(4):504-510.
[3]董文龙,关维阳,黄卫东.不同老化状态下SBS改性沥青的低温性能分析[J].建筑材料学报,2018,21(2):268-272.DONG Wen-long,GUAN Wei-yang,HUANG Weidong.Low temperature performance analysis of SBSmodified asphalt under different aging process[J].Journal of Building Materials,2018,21(2):268-272.
[4]AWANTI S S,AMARNATH M S,VEERARAGA-VAN A.Laboratory evaluation of SBS modified bituminous paving mix[J].Journal of Materials in Civil Engineering,2008,20(4):327-330.
[5]杨成,刘德仁,王旭,等.永古高速公路SBS改性沥青试验研究[J].硅酸盐通报,2014,33(8):1956-1961.YANG Cheng,LIU De-ren,WANG Xu,et al.Research on SBS modified asphalt of Yongdeng to Gulang Expressway[J].Bulletin of the Chinese Ceramic Society,2014,33(8):1956-1961.
[6]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 the low-temperature indexes of SBSmodified asphalts[J].Journal of Building Materials,2017,20(3):456-463.
[7]武建民,张雪林,陈忠达,等.改性沥青中SBS剂量检测方法[J].交通运输工程学报,2012,12(3):1-8.WU Jian-min,ZHANG Xue-lin,CHEN Zhong-da,et al.Test method of SBS content in modified asphalt[J].Journal of Traffic and Transportation Engineering,2012,12(3):1-8.
[8]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.Study on technical performance evaluation and quality control of SBS modified asphalt[D].Xi'an:Chang'an University,2011.
[9]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 Da-quan,ZHANG Li-wen.Quantitative determination of SBS content in SBS modified asphalt[J].Journal of Building Materials,2013,16(1):180-184.
[10]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.
[11]刘鹏,史福泉,王鹏,等.SBS改性沥青红外光谱快速检测方法研究[J].山东建筑大学学报,2018,33(4):13-18.LIU Peng,SHI Fu-quan,WANG Peng,et al.Research on fast detection method of infrared spectrum of SBS modified asphalt[J].Journal of Shangdong Jianzhu University,2018,33(4):13-18.
[12]SENGOZ B,ISIKYAKAR G.Analysis of styrene-butadiene-styrene polymer modified bitumen using fluorescent microscopy and conventional test methods[J].Journal of Hazardous Materials,2008,150(2):424-432.
[13]娄可可,康爱红,寇长江.SBS改性沥青相态结构的参数化表征方法[J].材料科学与工程学报,2016,34(4):638-642.LOU Ke-ke,KANG Ai-hong,KOU Chang-jiang.Parametric characterization method for morphological structure of SBS modified asphalt[J].Journal of Materials Science and Engineering,2016,34(4):638-642.
[14]胡魁,韩森,石伟,等.聚合物改性沥青中SBS面积比的确定及其对沥青使用性能的影响[J].北京工业大学学报,2015,41(5):749-754.HU Kui,HAN Sen,SHI Wei,et al.Research on SBSarea ratio calculation and impact on SBS modified asphalt performance[J].Journal of Beijing University of Technology,2015,41(5):749-754.
[15]耿九光,张倩,戴经梁.基于凝胶渗透色谱法的改性沥青中SBS降解行为研究[J].新型建筑材料,2011,38(5):87-90.GENG Jiu-guang,ZHANG Qian,DAI Jing-liang.Degradation process of SBS in modified asphalt based on gel permeation chromatography analysis[J].New Building Materials,2011,38(5):87-90.
[16]王瑞林,张坤.基于液相色谱改性沥青剂量黏度和针入度测试法研究[J].公路工程,2016(2):173-177.WANG Rui-lin,ZHANG Kun.Study on measurement of dose viscosity and penetration of modified asphalt based on liquid chromatography[J].Highway Engineering,2016(2):173-177.
[17]刘正春,牛艳芳,朱自强,等.基于电位滴定分析的改性沥青中苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)质量分数检测[J].中南大学学报:自然科学版,2015,46(6):2221-2226.LIU Zheng-chun,NIU Yan-fang,ZHU Zi-qiang,et al.Determination of styrene-butadiene-styrene block copolymer in modified asphalt by potentiometric titration[J].Journal of Central South University:Natural Science Edition,2015,46(6):2221-2226.
[18]唐洁琼.沥青材料的快速识别与分析方法研究[D].北京:北京化工大学,2015.TANG Jie-qiong.Research on rapid recognition and analysis of asphalt materials[D].Beijing:Beijing University of Chemical Technology,2015.
[19]孙培,韩森,高榕,等.适用于SBS改性沥青针入度的测试方法研究[J].铁道科学与工程学报2017,14(10):2130-2137.SUN Pei,HAN Sen,GAO Rong,et al.Research on penetration test method for SBS modified asphalt[J].Journal of Railway Science and Engineering,2017,14(10):2130-2137.
[20]李永振,武世超,高涵,等.添加剂对SBS改性沥青性能的影响[J].中外公路,2016,36(1):235-238.LI Yong-zhen,WU Shi-chao,GAO Han,et al.Effect of additives on performance of SBS modified asphalt[J].Chinese and Foreign Highways,2016,36(1):235-238.
[21]冯新军,折广兵,朱自强.增容剂和稳定剂对SBS改性沥青技术性能的影响研究[J].公路,2015(3):159-163.FENG Xin-jun,SHE Guang-bing,ZHU Zi-qiang.Effect of compatibilizer and stabilizer on technical properties of SBS modified asphalt[J].Highway,2015(3):159-163.
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