Strengthening of Reinforced Concrete Beams with Textile-Reinforced Concrete

• Published in: Civil and environmental engineering (Berlin) 2023-12, Vol.19 (2), p.596-609
• Main Authors: Abd-Al-Naser, Marwa, HARBA, Ibrahim S. I.
• Format: Article
• Language: English
• Subjects: Flexural behavior; Reinforced concrete beams; Sikadure-330 bond material; Strengthening of R.C. beams; Textile-carbon fiber TCF
• ISSN: 2199-6512; 2199-6512
• DOI: 10.2478/cee-2023-0054

Numerous problems that can occur during regular building use may necessitate the need for reinforced concrete RC members to be strengthened. An increase in live loads or structural damage is two examples. Various techniques can be used to increase load-carrying capability. Concrete reinforcement with textile-carbon fiber (TCF) is a more recent option. For almost all active forces, this strengthening procedure is appropriate. For bending, shear, torsion, or axial forces, strengthening is an option. The experimental work for this study examined the impact of textile carbon mesh in reinforced concrete with various numbers of layers and sikadure-330 as the bonding material with different damage ratio (0%, 45%, 55% and 70%). As well as the flexural behavior of reinforced concrete beams strengthened with TCF, by casting and testing 13 beams under the monotonic load, one of them represented the control beam, they designed according to ACI 318-14 to ensure flexural failure. From the results obtained in this study it was shown that the flexural capacity of all strengthened beams increased as a consequence of TCF strengthening. Therefore, TCF jacketing is a very promising technique for increasing reinforced concrete flexural capability, which is necessary for retrofitting and strengthening.