Abstract
The study verifies the effect of compressive strength of concrete on the fatigue resistance of the CFS- and CFSS-reinforced RC slabs. The results of a comparison of the number of equivalent cycles between the CFS- and CFSS-reinforced RC slab test specimens obtained from a fatigue test indicate that the CFSS-reinforced RC slab has 1.2-1.3 times greater effect of reinforcement than the CFS-reinforced RC slab. The study also reveals that the fatigue resistance of the CFS- and CFSS-reinforced RC slabs is ensured when the compressive strength of concrete is not lower than the specified design strength prescribed in the Specifications for Highway Bridges but is not ensured when the compressive strength of concrete is lower than the specified design strength, although the effect of reinforcement is secured.
