堆法评价集料级配离析特性的试验研究  

Experiment Research on Stockpile Method to Evaluate Segregation Characteristics of Gradation

作　　者：丁银萍[1] 陈静云[1] 王哲人[1,2] 焦晓磊[3] 

机构地区：[1]大连理工大学土木水利学院,大连116085 [2]哈尔滨工业大学交通科学与工程学院,哈尔滨150090 [3]天津市公路管理局,天津300170

出　　处：《武汉理工大学学报》2009年第13期83-87,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50578031);交通部西部科研基金(200431882053)

摘　　要：集料的级配离析不仅是散粒体固有的特性,也是影响沥青路面质量变异性的重要因素。采用料堆试验,通过对常用4种HMA类型(AC16、AK16、AM16和SMA16)进行的级配混合料离析特性的研究,定量地来比较不同级配和不同集料的离析趋势,提出了判别离析大小的评价方法与指标,并进行了验证,为从材料设计层面上解决沥青路面级配离析问题提供了基础。The gradation segregation of aggregates is not only an intrinsic feature of the granular mixtures, but also an important factor of influencing the quality of asphalt pavement. Stacking method is employed in the paper to compare the segregation trends of different gradations and different aggregates through studying the segregation features of four gradation mixtures of 4 common HMA types （AC16, AK16, AM16 and SMA16）, the methods and indexes of appraising the size of segregation are proposed, verification is made, which has provided a foundation for solving the gradation segregation problems on asphalt pavements from the perspectives of material and design.

关 键 词：沥青路面 混合料 料堆法 离析特性 评价指标 

分 类 号：U416.21[交通运输工程—道路与铁道工程]