再生集料混凝土疲劳性能试验.pdf

Construction and Building Materials 38 (2013) 681–688 Contents lists available at SciVerse ScienceDirect Construction and Building Materials journal homepage: /lo cate/conbuildmat Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings Jianzhuang Xiao a,⇑, Hong Li a, Zhenjun Yang b a Department of Building Engineering, Tongji University, Shanghai 200092, PR China b School of Mechanical, Aerospace and Civil Engineering, the University of Manchester, Manchester M13 9PL, UK h i g h l i g h t s Fatigue behavior of Recycled Aggregate Concrete was experimentally studied. Fatigue strain variation and the fatigue modulus of RAC were analyzed. Recycled aggregates have no obvious effects on compressive fatigue behavior. Fatigue life of RAC is lower than that of the NAC under cyclic bend loading. a r t i c l e i n f o a b s t r a c t Article history: The fatigue behavior of recycled aggregate concrete (RAC) with 100% recycled coarse aggregate (RCA) Received 2 August 2012 replacement percentage under uniaxial compression was experimentally investigated in this study. Received in revised form 15 September 2012 Key quantities, including the residual strain variation, fatigue strain variation and the fatigue modulus Accepted 18 September 2012 of RAC, were calculated and analyzed to correlate the strain response and fatigue damage behavior of Available online 23 October 2012 RAC. It is found that there exist no obvious dif