不同温拌剂对沥青混合料路用性能的影响  

Effects of different warm mix agents on road performance of asphalt mixture

作　　者：马峰[1] 袁康博 傅珍[2] 代佳胜 郭兴隆 MA Feng;YUAN Kangbo;FU Zhen;DAI Jiasheng;GUO Xinglong(School of Highway,Chang’an University,Xi’an 710064,China;School of Materials Science and Engineering,Chang’an University,Xi’an 710064,China)

机构地区：[1]长安大学公路学院,陕西西安710064 [2]长安大学材料科学与工程学院,陕西西安710064

出　　处：《合肥工业大学学报（自然科学版）》2021年第11期1500-1505,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51108038)。

摘　　要：为探究温拌剂对沥青混合料性能的影响,并推动温拌沥青混合料的应用,文章选用Aspha-min和Sasobit 2种温拌剂,分别对基质沥青及SBS改性沥青进行温拌改性,制备不同类型温拌沥青混合料,通过车辙试验、低温小梁试验以及疲劳试验等,对不同温拌剂改性的沥青混合料路用性能进行综合评价。结果表明:Sasobit温拌剂可将基质沥青混合料的动稳定度提升70%以上,在300×10^(-6)应变水平下仍可将基质沥青混合料的疲劳寿命提升38.5%;Aspha-min对沥青混合料高温及抗疲劳性能的改善效果明显低于Sasobit,但其对低温性能的不利影响小于Sasobit;2种温拌剂均可提升混合料的高温稳定性,但对低温性能略有不利,在SBS改性沥青混合料中加入此2种温拌剂,其性能满足路面使用要求。In order to explore the effect of warm mix agents on the performance of asphalt mixture and promote the use of warm mix asphalt mixture,two kinds of warm mix agents Aspha-min and Sasobit were selected to modify matrix asphalt and SBS modified asphalt respectively to prepare different types of warm mix asphalt mixture.Through rut test,low temperature trabecular test and fatigue test,the road performance of asphalt mixture modified by different warm mix agents was evaluated.The results showed that Sasobit could increase the dynamic stability of the matrix asphalt mixture by more than 70%and the fatigue life of the matrix asphalt mixture by 38.5%at 300×10^(-6) strain level.The improvement effect of Aspha-min on high temperature and anti-fatigue performance of asphalt mixture was significantly lower than that of Sasobit,but its adverse effect on low temperature performance was smaller than that of Sasobit.The two kinds of warm mix agents could improve the stability of the mixture at high temperature,but had a slight disadvantage to the performance at low temperature.They were added to SBS modified asphalt mixture,and their road performance met the specification requirements.

关 键 词：Sasobit温拌剂 Aspha-min温拌剂 沥青混合料 路用性能 抗疲劳性能 

分 类 号：U414[交通运输工程—道路与铁道工程]