SBS掺量对改性沥青性能影响及指标关联研究
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摘要
采用常规和SHRP等检测手段研究SBS掺量对改性沥青性能影响,并对表征改性沥青高温性能、低温性能的评价指标进行相关性研究。研究结果表明:随着SBS掺量增加,改性沥青常规性能、高温性能、低温性能均得以提高;改性沥青软化点、60℃动力黏度和高温临界温度在表征改性沥青高温性能方面具有良好的相关性,且软化点与高温临界温度的相关性优于60℃动力黏度;5℃延度、烘后延度和低温临界温度在表征改性沥青低温性能方面具有良好的相关性,且5℃延度与低温临界温度的相关性优于烘后延度。
The effects of SBS addition amount on the performance of modified asphalt were studied by conventional property evaluation methods and SHRP methods. The correlation between the high temperature performance and low temperature performance of the modified asphalt was studied. The results show that with the increase of SBS addition amount, the conventional performance, high temperature performance and low temperature performance of modified asphalt are improved. The softening point, dynamic viscosity at 60℃ and high critical temperature have good correlation in characterizing the high temperature performance of modified asphalt. The correlation between softening point and high critical temperature is better than dynamic viscosity at 60℃;The ductility at 5℃,post-aging ductility and low critical temperature have a good correlation in characterizing the low temperature performance of modified asphalt, and the correlation between the ductility at 5℃ and low critical temperature is better than post-aging ductility.
The effects of SBS addition amount on the performance of modified asphalt were studied by conventional property evaluation methods and SHRP methods. The correlation between the high temperature performance and low temperature performance of the modified asphalt was studied. The results show that with the increase of SBS addition amount, the conventional performance, high temperature performance and low temperature performance of modified asphalt are improved. The softening point, dynamic viscosity at 60℃ and high critical temperature have good correlation in characterizing the high temperature performance of modified asphalt. The correlation between softening point and high critical temperature is better than dynamic viscosity at 60℃;The ductility at 5℃,post-aging ductility and low critical temperature have a good correlation in characterizing the low temperature performance of modified asphalt, and the correlation between the ductility at 5℃ and low critical temperature is better than post-aging ductility.
引文
[1]祝伟.SBS掺量对改性沥青混合料路用性能的影响[D].长安大学,2012.
[2]康玉芳.SBS改性沥青的流变特性研究[J].黑龙江交通科技,2007,30(12):72-74.
[3]饶枭宇,周进川,张永兴,等.SBS改性沥青常规指标与SHRP性能指标的关系[J].重庆交通学院学报,2006,25(1):48-51.
[4]高建立.沥青指标的分析与评价及新指标的研究[D].东南大学,2005.
[5]栾自胜,雷军旗,屈仆,等.SBS改性沥青低温性能评价方法[J].武汉理工大学学报,2010,32(2):15-18.
[6]朱传荣,高冰梅,姚德宏.石油沥青60℃动力粘度测定影响因素的探讨[J].石油沥青,2006,20(3):63-66.
[7]杨锡武,刘克.硫改性沥青机理分析[J].石家庄铁道大学学报(自然科学版),2008,21(3):43-48.
[8]张玉贞,王翠红.聚合物SBS改性沥青相容性研究[J].石油沥青,2000,14(2):1-5.
[9]Mulder E A,Whiteoak C D.An Objective Assessment of the In-Service Performance of Thermoplastic Rubber Modified Bitumen for Road Applications[M].16th ARRB Conference,Perth,Western Australia,1992,89:252-262.
[10]Lewandowski L H.Polymer Modification of Paving Asphalt Binders[J].Rubber Chemistry&Technology,1994,67(3):447-480.
[11]张争奇,李平,王秉纲.SBS改性沥青性能及老化的影响[J].公路,2005,9(9):150-155.
[12]郭咏梅,倪富健.基于DSR的改性沥青及混合料动态黏弹性能[J].东南大学学报(自然科学版),2014,44(2):386-390.
[2]康玉芳.SBS改性沥青的流变特性研究[J].黑龙江交通科技,2007,30(12):72-74.
[3]饶枭宇,周进川,张永兴,等.SBS改性沥青常规指标与SHRP性能指标的关系[J].重庆交通学院学报,2006,25(1):48-51.
[4]高建立.沥青指标的分析与评价及新指标的研究[D].东南大学,2005.
[5]栾自胜,雷军旗,屈仆,等.SBS改性沥青低温性能评价方法[J].武汉理工大学学报,2010,32(2):15-18.
[6]朱传荣,高冰梅,姚德宏.石油沥青60℃动力粘度测定影响因素的探讨[J].石油沥青,2006,20(3):63-66.
[7]杨锡武,刘克.硫改性沥青机理分析[J].石家庄铁道大学学报(自然科学版),2008,21(3):43-48.
[8]张玉贞,王翠红.聚合物SBS改性沥青相容性研究[J].石油沥青,2000,14(2):1-5.
[9]Mulder E A,Whiteoak C D.An Objective Assessment of the In-Service Performance of Thermoplastic Rubber Modified Bitumen for Road Applications[M].16th ARRB Conference,Perth,Western Australia,1992,89:252-262.
[10]Lewandowski L H.Polymer Modification of Paving Asphalt Binders[J].Rubber Chemistry&Technology,1994,67(3):447-480.
[11]张争奇,李平,王秉纲.SBS改性沥青性能及老化的影响[J].公路,2005,9(9):150-155.
[12]郭咏梅,倪富健.基于DSR的改性沥青及混合料动态黏弹性能[J].东南大学学报(自然科学版),2014,44(2):386-390.