再生混凝土粗骨料的基本性能试验研究  

Experimental Research on Recycled Concrete Basic Properties of Coarse Aggregates

作　　者：李坤[1] 张英华[1] 

机构地区：[1]大连理工大学结构实验室,辽宁大连116023

出　　处：《建筑科学》2006年第5期58-60,99,共4页Building Science

摘　　要：再生混凝土骨料的基本性能直接影响再生混凝土的性能。因此,研究好再生混凝土骨料的性能对提高再生混凝土的性能非常重要,另外也为再生混凝土骨料的质量评定提供参考依据。本文着重研究了四种不同类型的再生混凝土粗骨料的吸水率、表观密度和压碎指标,实验发现再生混凝土粗骨料的这些性能除受到原生混凝土强度影响外,还跟原生混凝土粗骨料级配密切相关。The basic properties of recycled concrete are directly affected by the recycled concrete aggregate. Consequently, it＇s very important to study the basic properties of the recycled aggregate for improving the recycled concrete＇s properties and providing criteria for the judging of the recycled aggregates＇ qualities. Four different kinds of recycled concrete coarse aggregates were studied in this paper. Particular attention was paid to their water absorption ,apparent density and index of crushing. It is experimentally found that the recycled concrete coarse aggregates＇ properties are influenced not only by the Original concrete＇s strength but also by its gradations of aggregate.

关 键 词：再生混凝土 再生混凝土骨料 吸水率 表观密度 压碎指标 

分 类 号：TU528[建筑科学—建筑技术科学] TU528.041