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《Engineering Journal of Wuhan University》 2010-01
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Mechanical properties of recycled aggregate concrete

LIU Shuhua1,YAN Peiyu2(1.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;2.Department of Civil Engineering,Tsinghua University,Beijing 100084,China)  
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 RAC is similar to that of ordinary concrete;and the ductibility of RAC increases with the increase of the content of recycled aggregate;constitutive relation of RAC is established with numerical model and damage model;the fitted regression curves(especially numerical model) approach to measured curves and can be used in constitutive relations analysis for concrete structure.
【Fund】: 高等学校博士学科点专项科研基金项目(编号:200804861060)
【CateGory Index】: TU528
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