| Abstrakt: |
This study examined the behaviours and residue capacities of six reinforced concrete beams strengthened using slurry infiltrated fibre concrete (SIFCON) as compared to a reference un-strengthened beam. In this manner, it investigated how changing certain variables can affect the way the structure of the reinforced beam behaves. Six samples, split into two main groups plus the reference beam were thus cast and tested as part of an experimental programme. The groups were divided in accordance with the thickness of the SIFCON layer and the percentage of steel fibre used (0%, 2%, 4%, and 6%). All tested samples had dimensions of 1500 x 200 x 150 millimetres, with the same reinforcement and shape. The effects of the percentage of steel fibres added and the thickness of the SIFCON layer on ultimate load capacity, load-deflection response, stiffness, and ductility index were all explored in the experimental analysis. All experimental beams failed in the same way, beginning with the giving of the tension steel reinforcement and then the crushing of concrete. Increasing the percentage of added steel fibres increased the ultimate load, by 10.1%, 22.1%, 30.3%, 14.9%, 25.2%, and 32.9% for beams B20-2, B20-4, B20-6, B30-2, B30-4, and B30-6, respectively, as compared to the un-strengthened reference beam BR. In addition, increasing the thickness of the SIFCON layer increased the ultimate load for all beams. [ABSTRACT FROM AUTHOR] |
