再生粗骨料级配的分形特征  

Fractal Characteristics of Size-Distribution of Recycled Coarse Aggregate

作　　者：池漪[1,2] 尹健[2] 

机构地区：[1]湖南交通职业技术学院路桥工程系,湖南长沙410004 [2]中南大学土木建筑学院,湖南长沙410075

出　　处：《建筑材料学报》2009年第2期177-180,共4页Journal of Building Materials

摘　　要：应用分形理论测定并分析了最大粒径不同时,不同分形维数的粗骨料级配对再生混凝土坍落度以及3,28 d抗压、抗折、劈拉强度的影响.结果表明:最大粒径不同时,同一级配分形维数对应的再生混凝土其工作性能及强度性能不同,因此,再生粗骨料的分形维数必须用最大粒径来限定.Different size-distribution of recycled coarse aggregates by fractal theory was studied.Concretes with different maximum particle sizes were prepared by different fractal rate aggregate gradations and the slump of concrete,compressive strength,flexural strength and split strength at 3 d and 28 d were tested.The results show that recycled aggregate concrete performance with the same fractal dimension is different when the max particle size is different.The fractal dimension of recycled coarse aggregate must be determined by maximum particle size.

关 键 词：再生粗骨料 再生混凝土 级配 分形维数(D) 

分 类 号：X705[环境科学与工程—环境工程] TU528[建筑科学—建筑技术科学]