ABSTRACT
This paper presents an experimental study on axial compressive behavior of FRP-confined steel-reinforced recycled aggregate concrete (FCSRAC). A series of tests have been carried out to evaluate its compressive behavior, with the effects of key parameters such as replacement ratio of recycled coarse aggregate (RCA) and FRP confining stiffness being investigated. The failure modes and failure mechanism, load and deformation capacities, confinement and composite effects were discussed in this paper. It has been revealed that the use of RAC led to higher axial and lateral deformation capacities and in turn higher confinement ratio for the FCSRAC columns as compared to FRP-confined steel-reinforced concrete (FCSRC). Favorable composite effect was found for the combination of FRP, steel and concrete.
