Torsional Performance of Reinforced Concrete Beams Strengthened with Ferrocement

Reinforced concrete (RC) beams strengthened with ferrocement and exposed to pure torsion are the study's main focus.Ferrocement is utilized for strengthening because it's price-effective.The solution is cost-effective and structurally efficient.Ferrocement is cheaper, more accessible, and has good ductility, durability, and bond performance.Five RC beams were encased with 2.5 cm of ferrocement on each side and subjected to pure torsion for the investigation.The other two beams were references.Each strengthened beam had a cross-section of 100250 mm and a constant length of 2000 mm.The first control beam without torsional reinforcement has the same reinforcement features as all enhanced beams.This study examined the effects of wrapping beams from three and four sides and the presence or absence of strengthening, plastic, and steel wire mesh layers.All specimens enhanced with the ferrocement layer had better RC beam torsional performance than control beams.Compared to reference beams (b1, b2), b4 (beam strengthened with four faces) had the best torsional moment resistance and the highest ultimate torque moment.Strengthened beams with three faces (U-wrapped) (b4, b5, b6, b7) and different steel and plastic wire mesh layers increase ultimate torque (233%, 233%, 221%, 209%) for b1 and (114%, 114%, 106%, 99%) for b2.