Performance of Two-Way Concrete Slabs Reinforced with Basalt and Carbon FRP Rebars

Fibre-reinforced polymer (FRP) rebars are being increasingly used to reinforce concrete structures that require long-term resistance a corrosive environment. This study presents structural performance of large scale two-way slabs reinforced with FRP rebars, and their performances were compared against conventional steel concrete. Both carbon (CFRP) basalt (BFRP) considered as replacement. Experimental results showed the CFRP- BFRP-RC had approximately 7% 4% higher cracking moment capacities than steel-RC slab, respectively. The experienced gradual decrease in load capacity beyond peak load, whereas CFRP-RC underwent sharp capacity, similar slab. demonstrated 1.72 times ductility slabs. slab was found be safe punching shear but failed due flexural bending moment. FRP-RC adequately shear. At failure yielded; however, not ruptured. number cracks deflection However, exhibited elastic recovery while unloading. Elastic observed Additionally, analytical carrying validated experimental values investigate efficacy current available standards (ACI 318-14 ACI 440.1R-15) predict CFRP or BFRP. 1.20 theoretical ultimate capacity. 6% lower