再生骨料对混凝土性能影响研究  

STUDY ON IMPACT OF RECYCLED AGGREGATE ON THE PROPERTIES OF CONCRETE

作　　者：贾淑明[1] 王建军[2] 山水龙 姚科林[3] 

机构地区：[1]兰州工业学院建筑工程系,兰州730050 [2]中国建筑科学研究院,北京100013 [3]甘肃土木工程科学研究院,兰州730020

出　　处：《低温建筑技术》2014年第8期7-8,17,共3页Low Temperature Architecture Technology

基　　金：甘肃省住房和城乡建设厅2012年科技项目(编号JK2012-37)

摘　　要：以兰州某工地废弃混凝土为原料来制备再生粗、细骨料,分别以骨料取代率为0%,30%,70%,100%制作2组混凝土,设计强度等级均为C25级,进行了坍落度测定和7d、28d龄期的抗压强度试验研究,总结了不同再生粗、细骨料取代率对不同龄期混凝土强度的影响,可为本地区再生混凝土的推广及应用提供参考依据。In this experiment,waste concrete from a construction site in Lanzhou is used as the raw material to make recycled coarse and fine aggregate,which is turned into 2 groups of different mix proportions at different substitution rates of 0％,30％,70％,100％.Design strength grade of concrete is C25 level.Slump test and compression test of 7d and 28d ages are carried out.Finally this paper summarizes the effect of different mix proportions and different substitution rates of the recycled coarse and fine aggregate,providing references for the popularization and application of recycled concrete in our local area.

关 键 词：再生粗、细骨料 再生混凝土 取代率 

分 类 号：TU528.041[建筑科学—建筑技术科学]