沥青混合料中矿粉用量、细度和密度指标的控制  

Controlling Dosage,Fineness and Density Index of Mineral Filler in Asphalt Mixture

作　　者：纪伦[1] 李云良[1] 孙维刚[2] 郭猛[1] 袁鹏宇 

机构地区：[1]哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨150090 [2]龙建路桥股份有限公司,黑龙江哈尔滨150009 [3]中建中东有限公司,阿联酋迪拜63932

出　　处：《公路交通科技》2014年第8期25-29,52,共6页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(51078114);高等学校博士学科点专项科研基金项目(20102302120058)

摘　　要：在沥青混合料的组成材料中,矿粉的品质及其变异性的研究对于分析混合材料性能和组成材料的交互作用能力是极其重要。通过试验研究分析和说明了矿粉对混合料性能的影响。分析粉胶比、细度、用量及密度对混合料性能和组成的影响,提出了基于沥青混合料性能保证的矿粉品质参数的控制标准;提出粉胶比的控制范围,以及矿粉用量的容许控制范围;明确了矿粉0.075 mm通过率需要设立控制上限和下限,以往的单边控制存在一定的缺陷;提出了矿粉密度的容许变化范围。Study on the quality of mineral filler and its variability is very important for analyzing the performance of asphalt mixture and the interaction ability among different compositions. The effect of mineral filler on performance of asphalt mixture is studied and explained, the effects of filler-asphalt ratio, fineness, content and filler on performance and composition of asphalt mixture are analysed, and the control criteria of filler quality parameters based on performance guarantee of asphalt mixture is proposed. The control range of filler-asphalt ratio and the admissible control range of fillers are proposed. It is determined that the passing rate of 0. 075 mm size should be controlled with both maximum limit and minimum limit due to previous unilateral control has certain defects. The admissible changing range of density of filler is recommended.

关 键 词：矿粉 矿粉技术指标 沥青混合料性能 控制范围 

分 类 号：U414[交通运输工程—道路与铁道工程]