Glass Fiber versus Carbon Fiber Grid used in Textile Reinforced Mortar Strengthening of Precast RC Walls

Abstract

The experimental study presented hereis based on the seismic performance investigation of precast reinforced concrete wall panels (PRCWP), post-damage strengthening using different materials and different anchorage systems. Both wall panels have an initial small window opening, but the second panel has the opening enlarged into a large window opening in order to investigate also the cutout effect. The behavior and failure details are presented and analyzed for both unstrengthened and post-damage strengthened situations. The economic aspect will also be discussed for each of the strengthening systems used.

Numerical and experimental investigation on seismically damaged reinforced concrete wall panels retrofitted with FRP composites

“…The specimen outlines and reinforcement details are presented in Todut et al [27,28]. The strengthened elements were renamed using a specific notation: the suffix T/R refers to elements initially tested prior to failure, thereafter retrofitted and retested; R/T for elements retrofitted initially on undamaged elements and tested; and the reference elements tested initially have the suffix (T).…”

“…The first layer of the TRM component mortar (Sika Monotop 722 Mur) was then applied, followed by the glass fibre grid (SikaWrap 350G) fixed with a nut and washer and the second layer of mortar. Detailed data related to the glass fibre grid application are presented in Todut et al [28]. The strengthening solution was applied symmetrically on both faces of the wall (Fig.…”