强紫外光地区改性沥青AC-16混合料级配优化设计研究  

Study on Gradation Optimization Design of Modified Asphalt AC-16 in Strong Ultraviolet Region

作　　者：刘金修 李钰 李泽 周德平 LIU Jin-xiu;LI Yu;LI Ze;ZHOU De-ping

机构地区：[1]新疆交通科学研究院,新疆乌鲁木齐830000 [2]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《内蒙古公路与运输》2021年第1期6-11,共6页Highways & Transportation in Inner Mongolia

基　　金：内蒙古交通运输厅建设科技项目(NJ-2014-019)。

摘　　要：通过正交试验设计方法,将13.2mm、9.5mm、4.75mm、2.36mm四个关键筛孔和油石比作为影响因素,按照5因素5水平设计对SBS I-C改性沥青AC-16沥青混合料进行了马歇尔试验研究,利用极差分析法系统分析了每个影响因素对SBS I-C改性沥青、AC-16沥青混合料体积参数的影响规律,得到了各个体积参数的最优组合和影响排序,同时选取了3个试验级配进行抗紫外光老化、高低温性能的验证。通过对现有级配范围优化后,提出了适合强紫外光地区的SBS I-C改性沥青AC-16沥青混合料的级配范围。Through orthogonal test design method,four key sieve holes and asphalt ratio of 13.2mm,9.5mm,4.75mm,and 2.36mm were taken as influencing factors and marshall test study was conducted on SBS I-C modified asphalt AC-16 asphalt mixture according to the design of 5 factors and 5 levels.The influence of each factor on the volume parameters of SBS I-C modified asphalt AC-16 asphalt mixture was systematically analyzed by the range analysis method.The optimal combination and influence order of each volume parameter were obtained.At the same time,three experimental gradations were selected to verify the a nti-ultraviolet aging and high and low temperature performance.Finally,the existing gradation range was obtained.After optimization,the gradation range of SBS I-C modified asphalt AC-16 asphalt mixture suitable for strong ultraviolet light area is proposed.

关 键 词：沥青混合料 紫外光老化 关键筛孔 级配优化 正交试验 

分 类 号：U416.1[交通运输工程—道路与铁道工程]