基于动态剪切流变试验的硅粉/SBS复合改性沥青性能分析
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摘要
为研究硅粉与SBS复合改性沥青的流变性能,对不同Si O2含量的硅粉进行沥青3大指标试验,通过动态剪切流变实验(DSR)对基质沥青、硅粉改性沥青、SBS改性沥青和硅粉/SBS复合改性沥青进行流变性能指标测定,并对硅粉掺量为2%、4%、6%、8%的硅粉/SBS复合改性沥青进行系统研究。试验研究表明:硅粉的加入可有效提高复合改性沥青性能,并且Si O2含量越高改性沥青的性能越好。在DSR流变试验中,相同温度下,硅粉的加入使得复数剪切模量G*以及抗车辙因子G*/sinδ均有所上升;硅粉掺量的增加使得复数剪切模量G*以及抗车辙因子呈先增大后减小的趋势,加入掺量为6%硅粉的得到的复合改性沥青性能最优。
In order to investigate the rheological property of silicon powder/SBS composite modified asphalt,a study on three asphalt indexes of different SiO2 content of silicon powder were conducted.Dynamic shear rheometer( DSR) was used to measure the rheological properties of matrix asphalt,silicon modified asphalt,SBS modified asphalt and silicon/SBS compound modified asphalt,then doing a systematic study on silicon powder/SBS compound modified asphalt with 2 %,4 %,6 %and 8 % silicon powder contents. The results show that the pavement performance of compound modified asphalt can be improved effectively by adding silicon powder.Under the same temperature,both plural shear modulus G*and rutting resistance factor G*/sinδ are improved with the addition of silicon powder,and shows a tendency to increasing and then decrease with the increase of silicon powder contents,the composite modified asphalt with 6 % contents presents optimal performance.
In order to investigate the rheological property of silicon powder/SBS composite modified asphalt,a study on three asphalt indexes of different SiO2 content of silicon powder were conducted.Dynamic shear rheometer( DSR) was used to measure the rheological properties of matrix asphalt,silicon modified asphalt,SBS modified asphalt and silicon/SBS compound modified asphalt,then doing a systematic study on silicon powder/SBS compound modified asphalt with 2 %,4 %,6 %and 8 % silicon powder contents. The results show that the pavement performance of compound modified asphalt can be improved effectively by adding silicon powder.Under the same temperature,both plural shear modulus G*and rutting resistance factor G*/sinδ are improved with the addition of silicon powder,and shows a tendency to increasing and then decrease with the increase of silicon powder contents,the composite modified asphalt with 6 % contents presents optimal performance.
引文
[1]周庆华,贾渝.沥青胶结料高温性能试验方法的评价[J].长安大学学报(自然科学版),2008,28(2):9-12.
[2]陈华鑫,刚增军,王应龙,等. SBS改性沥青温度敏感性指标研究[J].建筑材料学报,2010,13(5):691-696.
[3]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.
[4]尹艳平,陈华鑫,宋丽芳,等. SBS/HON复合改性沥青流变性能[J].北京工业大学学报,2017,43(9):1405-1409.
[5]熊伟,王宏. TB(Terminal Blend)胶粉与SBS复合改性沥青混合料性能及改性机理[J].公路,2017,(2):192-200.
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[8] CONG P L,ZHOU B,CHEN S F,et al. Low temperature rheological and mechanistic characteristics of three different types of asphalt binders[J]. International Journal of Pavement Research and Technology,2011,4(5):307-312.
[9] STIMILLI A. Chemical and rheolodical analysis of modified bitumens blended with“artifical reclaimed bitumen”[J]. Construcrion and Building Materials,2014,3(47):1-10.
[10]王宏斌,张洪涛,赵晓亮.硅藻土改性沥青性能研究[J].公路交通科技(应用技术版),2015(7):67-70.
[11]房军,谭忆秋,李智慧,等.硅藻土改性沥青低温性能的研究[J].石油沥青,2005,19(5):26-29.
[12]马桂荣,王富玉,李艳玲.硅藻土改性沥青混合料中硅藻土掺量设计[J].北方交通,2012,(10):1-3.
[13]刘丽,李剑,郝培文,等.硅藻土改性沥青胶浆技术性能的评价方法[J].长安大学学报(自然科学版),2005,25(3):23-27.
[14]张兴友,胡光艳,王柏春,等.硅藻土改性沥青及混合料的路用性能研究[J].吉林建筑工程学院院报,2008,25(2):7-10.
[15]徐文远,陈丹,李文赛,等.活性硅/SBS复合改性沥青性能正交试验研究[J].中外公路,2016,36(3):296-301.
[16]中华人民共和国交通部公路科学研究院.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,2011:21-33.
[17]贾渝,王婕. Superpave沥青胶结料性能等级(PG)选择[J].石油沥青,2003,17(增刊):5-7.
[18]王金山,刘凯,乌云,等.硅藻土对SBS改性沥青技术性能的影响[J].公路工程,2014,39(6):345-348.
[19]杨超,谢君,周小俊.硅藻土改性沥青性能研究[J].武汉理工大学学报(交通科学与工程版),2018,42(1):121-125.
[2]陈华鑫,刚增军,王应龙,等. SBS改性沥青温度敏感性指标研究[J].建筑材料学报,2010,13(5):691-696.
[3]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.
[4]尹艳平,陈华鑫,宋丽芳,等. SBS/HON复合改性沥青流变性能[J].北京工业大学学报,2017,43(9):1405-1409.
[5]熊伟,王宏. TB(Terminal Blend)胶粉与SBS复合改性沥青混合料性能及改性机理[J].公路,2017,(2):192-200.
[6] CESARE O R,ASSUNTA S,BAGDAT T,et al. Polymer modified bitumen:Rheological properties and structural characterization[J]. Collooids and Surface A:Physicochemical and Engineering Aspects,2015,2(48):390-397.
[7] DONG F Q,YU X,LIU S J,et al. Rheological behaviours and microstructure of SBS/CR composite modified hard asphalt[J]. Construction and Building Materials,2016,115:285-293.
[8] CONG P L,ZHOU B,CHEN S F,et al. Low temperature rheological and mechanistic characteristics of three different types of asphalt binders[J]. International Journal of Pavement Research and Technology,2011,4(5):307-312.
[9] STIMILLI A. Chemical and rheolodical analysis of modified bitumens blended with“artifical reclaimed bitumen”[J]. Construcrion and Building Materials,2014,3(47):1-10.
[10]王宏斌,张洪涛,赵晓亮.硅藻土改性沥青性能研究[J].公路交通科技(应用技术版),2015(7):67-70.
[11]房军,谭忆秋,李智慧,等.硅藻土改性沥青低温性能的研究[J].石油沥青,2005,19(5):26-29.
[12]马桂荣,王富玉,李艳玲.硅藻土改性沥青混合料中硅藻土掺量设计[J].北方交通,2012,(10):1-3.
[13]刘丽,李剑,郝培文,等.硅藻土改性沥青胶浆技术性能的评价方法[J].长安大学学报(自然科学版),2005,25(3):23-27.
[14]张兴友,胡光艳,王柏春,等.硅藻土改性沥青及混合料的路用性能研究[J].吉林建筑工程学院院报,2008,25(2):7-10.
[15]徐文远,陈丹,李文赛,等.活性硅/SBS复合改性沥青性能正交试验研究[J].中外公路,2016,36(3):296-301.
[16]中华人民共和国交通部公路科学研究院.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,2011:21-33.
[17]贾渝,王婕. Superpave沥青胶结料性能等级(PG)选择[J].石油沥青,2003,17(增刊):5-7.
[18]王金山,刘凯,乌云,等.硅藻土对SBS改性沥青技术性能的影响[J].公路工程,2014,39(6):345-348.
[19]杨超,谢君,周小俊.硅藻土改性沥青性能研究[J].武汉理工大学学报(交通科学与工程版),2018,42(1):121-125.