Abstract
Confinement through steel spirals can significantly improve the performance of recycled aggregate concrete (RAC). However, only a few studies are available in the literature in this context. Considering the variability of recycled coarse aggregates (RCA), more studies are needed to explore the behavior of RAC confined by steel spirals. In this study, the stress-strain behavior of steel spiral confined RAC incorporating acetic acid immersed and mechanically rubbed recycled coarse aggregates (AMRCA) is studied. For this purpose, three different concrete mix designs and three different confinement levels of steel spirals were considered. Results show that the increase of confinement level increases the peak stress, peak strain, and ultimate strain of RAC incorporating AMRCA (AMRAC). At the same confinement level, the ultimate and peak strains of all the confined AMRAC samples are noticed higher than confined NAC samples of the same series. Peak strength reduction due to the addition of AMRCA is also observed lower for confined AMRAC samples than unconfined AMRAC samples. The applicability of the stress-strain model and relationship to determine the permissible content of RCA, previously developed for steel spiral confined NAC and RAC to spirally confined AMRAC samples, is also examined.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
