低标号沥青在新疆高温抗车辙地区的应用研究
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摘要
为研究低标号沥青在新疆高温抗车辙地区的应用前景,通过DSR、BBR试验测试了50#、70#、90#、SBS沥青的高温、低温性能;通过车辙试验、高温剪切试验、低温弯曲试验、三点弯曲疲劳试验研究了50#、70#、90#、SBS沥青混合料的路用性能;并分析了四种沥青路面在该地区的经济效益。室内试验结果表明:基质沥青的标号越低,其高温性能越好,低温性能越差;低标号沥青混合料具有良好的抗车辙能力; 50#、70#沥青混合料的低温性能和疲劳性能低于90#、SBS沥青混合料。全寿命周期成本分析表明:四种沥青路面的全寿命周期费用为:90#> SBS> 70#> 50#。低标号沥青混合料的路用性能满足高温抗车辙地区的使用要求,能有效减少车辙病害,且全寿命周期成本较低。
In order to study the application prospect of low grade asphalt in high temperature anti-rutting area,this paper test the high temperature performance and low temperature performance of 50#,70#,90#,SBS asphalt by DSR test and BBR test; The pavement performance of the 50#,70#,90#,SBS asphalt were also studied by rutting test,high temperature shear test,low temperature bending test,and three point bending fatigue test; In addition,this paper also analyze the economic benefits of the four kinds of asphalt pavement in xinjiang region. Laboratory test results show that the lower the grade of matrix asphalt is,the higher the high temperature performance is,the lower the low temperature performance is; Low grade asphalt mixture has a good anti-rutting performance,the size of dynamic stability of the four kinds of asphalt mixture is SBS > 50# > 70# > 90#,the size of shear stress is 70# > 50# > SBS > 90 #,but the low temperature performance and fatigue property of the low grade asphalt are smaller than the 90#,SBS asphalt. The analysis of life cycle cost shows that LCC of the four asphalt pavement is 90# > SBS > 70# >50#. The pavement performance of the low grade asphalt meet the requirements of specification in the high temperature anti-rutting area,and it can reduce rutting disease effectively,and have a low life-cycle cost. It is suitable to be applied in the high temperature anti-rutting area.
In order to study the application prospect of low grade asphalt in high temperature anti-rutting area,this paper test the high temperature performance and low temperature performance of 50#,70#,90#,SBS asphalt by DSR test and BBR test; The pavement performance of the 50#,70#,90#,SBS asphalt were also studied by rutting test,high temperature shear test,low temperature bending test,and three point bending fatigue test; In addition,this paper also analyze the economic benefits of the four kinds of asphalt pavement in xinjiang region. Laboratory test results show that the lower the grade of matrix asphalt is,the higher the high temperature performance is,the lower the low temperature performance is; Low grade asphalt mixture has a good anti-rutting performance,the size of dynamic stability of the four kinds of asphalt mixture is SBS > 50# > 70# > 90#,the size of shear stress is 70# > 50# > SBS > 90 #,but the low temperature performance and fatigue property of the low grade asphalt are smaller than the 90#,SBS asphalt. The analysis of life cycle cost shows that LCC of the four asphalt pavement is 90# > SBS > 70# >50#. The pavement performance of the low grade asphalt meet the requirements of specification in the high temperature anti-rutting area,and it can reduce rutting disease effectively,and have a low life-cycle cost. It is suitable to be applied in the high temperature anti-rutting area.
引文
[1]赵学颖,申爱琴,马宝富.南疆高温大温差地区高速公路沥青路面结构适应性[J].江苏大学学报(自然科学版),2017,38(5):608-614.
[2]新疆公路沥青路面设计指导手册[S]. 2013. 01. 01
[3]徐桂阳.新疆高温地区沥青路面车辙病害处治研究[D].乌鲁木齐:新疆农业大学,2014.
[4]潘学峰.抗车辙剂在沥青路面施工中的应用[J].交通标准化,2014,42(10):77-79.
[5]杨丙龙.国内外沥青路面抗车辙研究动态[J].交通标准化,2008,36(4):149-152.
[6]肖鹏,李雪峰. SBS物理和化学改性沥青混合料抗车辙能力分析[J].扬州大学学报(自然科学版),2005(4):79-82.
[7]吴健,钱国平.低标号硬质沥青及其混合料高温性能试验研究[J].中外公路,2009,29(3):232-234.
[8] Corte J F. Development and uses of hard grade asphalt and of high modulus asphalt mixes in France[M]. Transportation Research Circular No. 503Washington(DC):TRB,National Research Council,2003:12-30.
[9]邢保东.中法高模量沥青混凝土关键设计指标与设计方法研究[D].济南:山东建筑大学,2010.
[10] Project Final Pr EN 12591. European standard. Bitumen and bituminous binders specifications for paving grade bitumen final draft[S]. CEN.1998.
[11]李霖,王书杰,陈果.低标号沥青混合料的路用性能[J].交通标准化,2014,42(15):146-150+155.
[12]叶恒鑫,陈一鸣,安丰伟.低标号改性沥青断级配混合料在干线公路车辙处治工程中的应用研究[J].石油沥青,2015,29(5):43-47.
[13]邹桂莲,李文娟,徐剑.低标号沥青胶浆低温流变行为研究[J].中外公路,2014,34(6):210-214.
[14]孙雪伟,李挠.低标号沥青在高模量沥青混合料中的应用研究[J].石油沥青,2016,30(3):46-49.
[15]李文娟.基于三级分散体系的低标号沥青混合料设计原则研究[D].广州:华南理工大学,2014.
[16]孙己龙.高速公路沥青混合料配合比优化设计方法研究[D].西安:长安大学,2010.
[17]李晓娟,韩森,贾志清,等.基于弯曲试验的沥青混合料低温抗裂性研究[J].山东大学学报(工学版),2010,40(6):88-93.
[18]柯文豪,雷宇,陈团结.基于路用性能的沥青路面全寿命周期设计方法[J].长安大学学报(自然科学版),2013,33(3):7-13.
[2]新疆公路沥青路面设计指导手册[S]. 2013. 01. 01
[3]徐桂阳.新疆高温地区沥青路面车辙病害处治研究[D].乌鲁木齐:新疆农业大学,2014.
[4]潘学峰.抗车辙剂在沥青路面施工中的应用[J].交通标准化,2014,42(10):77-79.
[5]杨丙龙.国内外沥青路面抗车辙研究动态[J].交通标准化,2008,36(4):149-152.
[6]肖鹏,李雪峰. SBS物理和化学改性沥青混合料抗车辙能力分析[J].扬州大学学报(自然科学版),2005(4):79-82.
[7]吴健,钱国平.低标号硬质沥青及其混合料高温性能试验研究[J].中外公路,2009,29(3):232-234.
[8] Corte J F. Development and uses of hard grade asphalt and of high modulus asphalt mixes in France[M]. Transportation Research Circular No. 503Washington(DC):TRB,National Research Council,2003:12-30.
[9]邢保东.中法高模量沥青混凝土关键设计指标与设计方法研究[D].济南:山东建筑大学,2010.
[10] Project Final Pr EN 12591. European standard. Bitumen and bituminous binders specifications for paving grade bitumen final draft[S]. CEN.1998.
[11]李霖,王书杰,陈果.低标号沥青混合料的路用性能[J].交通标准化,2014,42(15):146-150+155.
[12]叶恒鑫,陈一鸣,安丰伟.低标号改性沥青断级配混合料在干线公路车辙处治工程中的应用研究[J].石油沥青,2015,29(5):43-47.
[13]邹桂莲,李文娟,徐剑.低标号沥青胶浆低温流变行为研究[J].中外公路,2014,34(6):210-214.
[14]孙雪伟,李挠.低标号沥青在高模量沥青混合料中的应用研究[J].石油沥青,2016,30(3):46-49.
[15]李文娟.基于三级分散体系的低标号沥青混合料设计原则研究[D].广州:华南理工大学,2014.
[16]孙己龙.高速公路沥青混合料配合比优化设计方法研究[D].西安:长安大学,2010.
[17]李晓娟,韩森,贾志清,等.基于弯曲试验的沥青混合料低温抗裂性研究[J].山东大学学报(工学版),2010,40(6):88-93.
[18]柯文豪,雷宇,陈团结.基于路用性能的沥青路面全寿命周期设计方法[J].长安大学学报(自然科学版),2013,33(3):7-13.