This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
,
Faculty of Civil Engineering and Architecture , University of Nis , Niš , Serbia
Facullty of Mechanical and Civil Engineering: Kraljevo, University of Kragujevac , Kragujevac , Serbia
,
Faculty of Civil Engineering and Architecture , University of Nis , Niš , Serbia
,
Faculty of Civil Engineering and Architecture , University of Nis , Niš , Serbia
Faculty of Civil Engineering and Architecture , University of Nis , Niš , Serbia
This study examines the load–deflection response of continuous self-compacting concrete (SCC) beams incorporating recycled coarse aggregates. Nine two-span beams with reinforcement ratios of 0.65–0.94% were experimentally tested using 50% and 100% aggregate replacement. Recycled aggregate beams showed slightly reduced stiffness and increased post-cracking deflections, while ultimate load capacities remained comparable, particularly for 50% replacement. The influence of recycled aggregates was more pronounced at lower reinforcement ratios. Experimental ultimate loads exceeded EC2 and ACI 318 predictions, indicating effective moment redistribution and ductile behavior. The results confirm the structural applicability of high-quality recycled aggregates in continuous SCC beams.
recycled aggregate concrete (RAC), self-compacting concrete (SCC), continuous beams, load–deflection behavior
This research was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia, under the Agreement on Financing the Scientific Research Work of Teaching Staff at the Faculty of Mechan-ical Engineering and Civil Engineering in Kraljevo, University of Kragujevac - Registration number: 451-03-137/2025-03/200108 and Faculty of Civil Engineering and Architecture, University of Nis - Registration number: 451-03-34/2026-03/200095 dated 05/02/2026. The conducted research is related to the goal Sustainable Cities and Communities in accordance with the universal strategy of the United Nations (Agenda 2030).
The statements, opinions and data contained in the journal are solely those of the individual authors and contributors and not of the publisher and the editor(s). We stay neutral with regard to jurisdictional claims in published maps and institutional affiliations.
