紫外老化对废食用植物油再生沥青性能的影响
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摘要
目的研究紫外老化对70#和SBS两种废食用植物油再生沥青性能的影响,为沥青路面再生技术的实际工程提供指导性建议.方法利用动态剪切流变仪(Dynamic Shear Rheological test,DSR)的温度扫描和频率扫描以及弯曲梁流变仪(Bending Beam Rheometer,BBR)分别测试了不同紫外老化时间后废食用植物油再生沥青的抗疲劳性能、弹性恢复性能和低温性能.结果随着紫外老化时间的延长,两种再生沥青抗疲劳性能和弹性恢复能力逐渐下降,但对其低温性能的影响不明显.结论相对于SBS再生沥青,紫外老化对70#再生沥青的抗疲劳性能、弹性恢复性能和低温性能的影响更为显著.
In order to study the effect of ultraviolet aging on the properties of 70# and SBS modified waste vegetable oil recycled asphalt for providing advice in practical engineering of pavement regeneration technology.The temperature and frequency sweep of DSR(Dynamic Shear Rheological)test and BBR(Bending Beam Rheometer)test were applied to measure the resistance to fatigue,elastic recovery and low-temperature cracking under doing different UV aging times.The test results show that with the UV aging time increases,the resistance to fatigue and elastic recovery capacity of two kinds of asphalts are declined.However,the effect of UV aging on the low-temperature cracking is very little.Compared with the SBS modified asphalt,the effect of UV aging on the resistance to fatigue,elastic recovery and low-temperature cracking of the 70# asphalt is more significant.
In order to study the effect of ultraviolet aging on the properties of 70# and SBS modified waste vegetable oil recycled asphalt for providing advice in practical engineering of pavement regeneration technology.The temperature and frequency sweep of DSR(Dynamic Shear Rheological)test and BBR(Bending Beam Rheometer)test were applied to measure the resistance to fatigue,elastic recovery and low-temperature cracking under doing different UV aging times.The test results show that with the UV aging time increases,the resistance to fatigue and elastic recovery capacity of two kinds of asphalts are declined.However,the effect of UV aging on the low-temperature cracking is very little.Compared with the SBS modified asphalt,the effect of UV aging on the resistance to fatigue,elastic recovery and low-temperature cracking of the 70# asphalt is more significant.
引文
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[2] 倪小军,陈仕周,凌天清.沥青路面再生利用技术综述[J].重庆交通学院学报,2004(5):39-42.(NI Xiaojun,CHEN Shizhou,LING Tianqing.Technology of asphalt pavement recycling [J].Journal of Chongqing jiaotong university,2004(5):39-42.)
[3] 余国贤,周晓龙,金亚清,等.废旧沥青再生剂的实验研究[J].石油学报,2006(5):96-100.(YU Guoxian,ZHOU Xiaolong,JIN Yaqing,et al.Experimental research on waste asphalt regenerant [J].Acta petrologica sinica,2006(5):96-100.)
[4] 蔡恒吉,程斌,彭大海,等.我国废矿物油再生工艺的现状及未来的发展方向[J].化工管理,2017(24):83-85.(CAI Hengji,CHENG Bin,PENG Dahai,et al.Review and future development of waste mineral oil recycling processes in China [J].Chemical management,2017(24):83-85.)
[5] 张瑜.沥青的老化机理研究及再生剂开发[D].重庆:重庆交通大学,2013.(ZHANG Yu.Aging mechanism of bitumen and development of regenerant [D].Chongqing:Chongqing Jiaotong University,2013.)
[6] 李振海,王国峰,魏建明.再生剂制备技术及再生沥青的评价[J].中国石油大学学报(自然科学版),2011,35(5):152-156.(LI Zhenhai,WANG Guofeng,WEI Jianming.Preparation technology of regenerant and evaluation of recycled asphalt [J].Journal of China university of petroleum(science and technology),2011,35(5):152-156.)
[7] 冷滨滨,陈美祝,吴少鹏.废食用植物油再生沥青的物理性能研究[J].公路,2014,59(2):175-179.(LENG Binbin,CHEN Meizhu,WU Shaopeng.Research on the physical properties of waste edible vegetable oil recycled asphalt [J].Highway,2014,59(2):175-179.)
[8] 索智,季节,满琦,等.植物油再生沥青的性能研究[J].北京工业大学学报,2016,42(7):1062-1065.(SUO Zhi,JI Jie,MAN Qi,et al.Performance evaluation of ergenerated asphalt with vegetable oil [J].Journal of Beijing university of technology,2016,42(7):1062-1065.)
[9] JI Jie,YAO Hui,SUO Zhi,et al.Effectiveness of vegetable oils as rejuvenators for aged asphalt binders[J].Journal of materials in civil engineering,2016.
[10] ZAUMANIS M,MALLICK R B,POULIKAKOS L,et al.Influence of six rejuvenators on the performance properties of reclaimed asphalt pavement(RAP)binder and 100% recycled asphalt mixtures[J].Construction and building materials,2014,71:538-550.
[11] 谭忆秋,王佳妮,冯中良,等.沥青结合料紫外老化机理[J].中国公路学报,2008(1):19-24.(TAN Yiqiu,WANG Jiani,FENG Zhongliang,et al.Ultraviolet aging mechanism of asphalt binder[J].China journal of highway and transportation,2008(1):19-24.)
[12] 祁欣,武光明,尹亮.橡胶硫化改性路用沥青紫外老化过程的研究[J].北京石油化工学院学报,2011,19(3):38-42.(QI Xin,WU Guangming,YIN Liang.A study on the UV aging process of rubber vulcanization modified road asphalt [J].Journal of Beijing institute of petrochemical technology,2011,19(3):38-42.)
[13] 王佳妮,薛忠军,谭忆秋.紫外老化对沥青力学行为及聚集态的影响[J].中国公路学报,2011,24(1):14-19.(WANG Jiani,XUE Zhongjun,TAN Yiqiu.Influence of ultraviolet aging on mechanical behavior and aggregate states of asphalt [J].China journal of highway and transportation,2011,24(1):14-19.)
[14] 中华人民共和国交通运输部.公路工程沥青及沥青混合料试验规程:JTG E20—2011[S].北京:人民交通出版社,2011.(Ministry of Transport of the People's Republic of China.Standard test methods of bitumen and bituminous mixtures for highway engineering:JTG E20—2011[S].Beijing:China Communication Press,2011.)
[15] 王佳妮.模拟紫外环境下沥青流变行为及老化机理的研究[D].哈尔滨:哈尔滨工业大学,2008.(WANG Jiani.Study on aging mechanism and rheologic behavior of asphalt under simulate ultraviolet environment [D].Harbin:Harbin Institute of Technology,2008.)