水泥粉煤灰稳定碎石结合料与集料的比例  

Proportion of binders to aggregate in cement-flyash stabilized crushed-stones

作　　者：张嘎吱[1] 沙爱民[1] 

机构地区：[1]长安大学特殊地区公路工程教育部重点实验室,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2005年第6期10-13,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：河南省交通科技项目(2002P232)

摘　　要：水泥粉煤灰稳定碎石的组成结构和路用性能随结合料与集料的比例而变化.通过这种基层材料不同结合料含量时的最大干密度试验,得到了最大干密度与结合料含量的关系曲线图,此图的最大干密度峰值所对应的比例即为结合料与集料的最优比例,此时结合料恰好填满集料空隙形成密实-骨架结构.试验结果表明:该结构具有优良的路用性能;级配变化时结合料与集料最优比例范围为13:87～17:83.Cement-flyash stabilized crushed-stones＇ structure and its road properties change with the variety of the proportion of binders to aggregate. Based on the greatest dry density of different bound materials percentage, this paper gets a curve figure which shows the variation of bound materials to the greatest dry density. The climax point on the curve determines the best proportion of bound materials to aggregate. At this point, the bound materials fill up the whole void of aggregate, to strenthen the framework of dense structure. It is proved that this structure has a good road properties, and when aggregate gradation changes, the best proportion limit of bound materials to aggregate is 13：87-17：83. 12 tabs, 4 figs, 11 refs.

关 键 词：道路工程 水泥粉煤灰 稳定碎石 组成结构 骨架-密实结构 最大干密度 

分 类 号：U414.1[交通运输工程—道路与铁道工程]