PSI - Issue 64

Paula Folino et al. / Procedia Structural Integrity 64 (2024) 1452–1459 Folino et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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beams was presented. Reinforced concrete reference beams were strengthened using high strength self-compacting concrete jackets with and without fibers (SCHSC and SCFRHSC). Different types of surface preparation and jacket widths were considered. In all cases, while the reference beams failed under shear, the jacketed beams failed under bending. In comparison with traditional jacketing (plain concrete with steel reinforcing bars), it was found that SCFRHSC jackets - Are suitable for strengthening reinforced concrete beams providing comparable strength increases. - Present an easier construction methodology due to their self-compacting properties and lack of reinforcing bars. - Significantly improve structural integrity. - Increasing jacket thickness does not lead to a proportional increase in strength. - Surface preparation of existing concrete does not considerably impact on strength but it does on failure mode. - Present a better efficiency regarding materials consumption. 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