水资源与水工程学报2017，Vol.28Issue(1)：169-173,5.DOI:10.11705/j.issn.1672-643X.2017.01.30
粗骨料超径率对心墙沥青混凝土力学性能的影响分析
The effects of oversized coarse aggregate rate on mechanical properties of asphalt concrete core wall
摘要
Abstract
To study the effects of oversized rate on the mechanical properties of asphalt concrete,the three levels orthogonal tests were conducted considering three factors including the particles content of 19mm ～26.5mm (oversized rate),the filler concentration,the amount of asphalt and three levels.The Marshall stability,flow value and splitting tensile strength of asphalt concrete were measured,and the projection pursuit regression (PPR) was used to study the influences of oversized rate,filler concentration,amount of asphalt on the mechanical properties of asphalt concrete core wall.The results showed that,with the increase of oversized rate,both Marshall stability and flow values decreased first and then increased,the splitting tensile strength first increased and then stabilized.With the increase of concentration of filler,Marshall flow value and splitting tensile strength first increased and then decreased,Marshall stability decreased gradually.With the increase of asphalt contents,the Marshall flow value increased gradually,Marshall stability and splitting tensile strength decreased gradually.The the mechanical properties of asphalt concrete core wall were the best when the oversized was 40％,the filler concentration was 2.0,and the use of bitumen was 6.8％.关键词
粗骨料/超径率/心墙沥青混凝土/投影寻踪回归分析法/劈裂抗拉强度Key words
coarse aggregate/oversized rate/asphalt concrete core wall/projection pursuit regression/splitting tensile strength分类
建筑与水利引用本文复制引用
伦聚斌,何建新,王怀义..粗骨料超径率对心墙沥青混凝土力学性能的影响分析[J].水资源与水工程学报,2017,28(1):169-173,5.基金项目
新疆维吾尔自治区高校科研计划科学研究重点项目(XJEDU2014I016) （XJEDU2014I016）
新疆维吾尔自治区产学研联合培养研究生项目(xjaucxy-yjs-20152030) （xjaucxy-yjs-20152030）
