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再生骨料混凝土的力学性能
引用本文:刘数华,阎培渝.再生骨料混凝土的力学性能[J].武汉大学学报(工学版),2010,43(1).
作者姓名:刘数华  阎培渝
作者单位:1. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072
2. 清华大学土木工程系,北京,100084
基金项目:高等学校博士学科点专项科研基金项目(编号:200804861060)
摘    要:采用再生骨料配制再生骨料混凝土(RAC),研究其力学性能,特别是单轴受压应力-应变性能.通过改变再生骨料的取代量,研究再生骨料对RAC力学性能的影响.研究结果表明:随着再生骨料取代率的增加,RAC的强度会略有降低;RAC的单轴受压应力-应变曲线与普通混凝土相近,随着再生骨料取代量的增加,RAC的延展性得到提高;采用数值计算模型和损伤模型构造RAC的本构关系,回归曲线与实测单轴受压应力-应变曲线的吻合较好,特别是数值模型,基本上能够真实地再现应力-应变曲线,可用于混凝土结构的计算分析.

关 键 词:再生骨料混凝土  力学性能  单轴受压应力-应变性能

Mechanical properties of recycled aggregate concrete
LIU Shuhua,YAN Peiyu.Mechanical properties of recycled aggregate concrete[J].Engineering Journal of Wuhan University,2010,43(1).
Authors:LIU Shuhua  YAN Peiyu
Affiliation:LIU Shuhua1,YAN Peiyu2(1.State Key Laboratory of Water Resources , Hydropower Engineering Science,Wuhan University,Wuhan 430072,China,2.Department of Civil Engineering,Tsinghua University,Beijing 100084,China)
Abstract:In this testing research,we prepared a series of recycled aggregate concrete(RAC) with recycled aggregate and studied their mechanical properties,especially uniaxial compressive stress-strain properties.The influence of the recycled aggregate on the mechanical properties of RAC was studied by changing replacement ratio of recycled aggregate.Testing results show that the strength of RAC decreases a little with the increase of the content of recycled aggregate;the uniaxial compressive stress-strain curve of R...
Keywords:RAC  mechanical properties  uniaxial compressive stress-strain property  
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