Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings
Highlights ► 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.
Abstract The fatigue behavior of recycled aggregate concrete (RAC) with 100% recycled coarse aggregate (RCA) replacement percentage under uniaxial compression was experimentally investigated in this study. Key quantities, including the residual strain variation, fatigue strain variation and the fatigue modulus of RAC, were calculated and analyzed to correlate the strain response and fatigue damage behavior of RAC. It is found that there exist no obvious differences of compressive fatigue behavior between RAC and natural aggregate concrete (NAC). Based on the experimental results and continuum damage mechanics, a fatigue model relating the fatigue strain variation and the fatigue modulus degradation to the fatigue damage evolution is proposed. Furthermore, RAC with 100% RCA replacement percentage was also tested under cyclic bend loading. It is found that the fatigue life of RAC is lower than that of NAC for the same stress level under cyclic bend loading.
Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings
Highlights ► 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.
Abstract The fatigue behavior of recycled aggregate concrete (RAC) with 100% recycled coarse aggregate (RCA) replacement percentage under uniaxial compression was experimentally investigated in this study. Key quantities, including the residual strain variation, fatigue strain variation and the fatigue modulus of RAC, were calculated and analyzed to correlate the strain response and fatigue damage behavior of RAC. It is found that there exist no obvious differences of compressive fatigue behavior between RAC and natural aggregate concrete (NAC). Based on the experimental results and continuum damage mechanics, a fatigue model relating the fatigue strain variation and the fatigue modulus degradation to the fatigue damage evolution is proposed. Furthermore, RAC with 100% RCA replacement percentage was also tested under cyclic bend loading. It is found that the fatigue life of RAC is lower than that of NAC for the same stress level under cyclic bend loading.
Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings
Xiao, Jianzhuang (Autor:in) / Li, Hong (Autor:in) / Yang, Zhenjun (Autor:in)
Construction and Building Materials ; 38 ; 681-688
18.09.2012
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings
| British Library Online Contents | 2013
Fatigue behavior of recycled aggregate concrete under compression and bending cyclic loadings
| Online Contents | 2013
Investigation on Seismic Behavior of Recycled Aggregate Concrete Structures under Dynamic Loadings
| Trans Tech Publications | 2013
Recycled Aggregate Concrete under Cyclic Loading
| British Library Conference Proceedings | 2003