不同温度下沥青混合料劈裂强度的影响因素  

Influencing Factors of Different Temperature Splitting Strength for Asphalt Mixture

作　　者：陆学元[1] 张素云[2] 

机构地区：[1]安徽省高速公路控股集团有限公司,合肥230051 [2]安徽交通职业技术学院,合肥230051

出　　处：《武汉理工大学学报（交通科学与工程版）》2011年第6期1178-1182,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：安徽省2005年交通科技进步计划项目资助(批准号:发改交运[2005]1247号)

摘　　要：以常用的AC-25沥青混合料为研究对象,应用正交试验设计与统计分析方法,展开了2.36,4.75,2.36与0.075mm筛孔通过率、油石质量比5个影响因素的不同温度劈裂强度分析,结果表明:各影响因素对不同温度下劈裂强度值的影响没有随温度改变而发生排序变化,排序大小为2.36mm通过率>0.075mm通过率>13.2mm通过率>油石质量比>4.75mm通过率.其中,2.36mm通过率高度显著影响不同温度劈裂强度值,且随温度逐渐升高,影响程度越加明显,表明级配对不同温度下劈裂强度起控制作用,优化级配设计可显著提高不同温度的劈裂强度值.Aiming at AC-25 asphalt which commonly used in the asphalt layer,different temperatures splitting strength analysis by using orthogonal experimental design was carried out.Five influencing factors,including 2.36mm passing rate,4.75mm passing rate,2.36mm passing rate,0.075mm passing rate,OAC,were selected for analysis of variance and range.Results indicate that different temperatures splitting strength does not change with temperature change and its degree sequence is 2.36mm passing rate0.075mm passing rate 13.2mm passing rate OAC 4.75mm passing rate.2.36mm passing rate significantly influences different temperatures splitting strength value,and influencing degree is increasingly obvious with the temperature gradually increased.Different temperatures splitting strength was contolled by grading,and optimizated grading design can significantly improve the different temperature splitting strength value.

关 键 词：道路工程 AC-25沥青混合料 试验设计 不同温度劈裂强度 统计分析 影响因素 

分 类 号：U414[交通运输工程—道路与铁道工程]