Nine one-way concrete slabs reinforced with carbon-FRP bars were constructed and tested to failure under two-point loading. The effect of reinforcement ratios, bar diameters, and various concrete compressive strengths were investigated to determine the concrete's contribution to shear strength. Slab structural behavior in terms of crack patterns, modes of failure, and ultimate capacities were examined. All slabs ultimately failed in shear that caused rupture and complete separation of both parts of the slab. One of the tested