Study on a method to extend the life of RC slab structures in cold snowy regions

Abstract

In this study, focus was placed on both frost deterioration on the top of slabs and fatigue deterioration on the bottom; a wheel running test was conducted on a specimen that had been repaired and reinforced and on a standard control specimen. The results confirmed that the reinforced specimen was capable of regaining the initial rigidity of the newly placed standard specimen, and that a life extension effect was achieved by its high fatigue durability. The test also revealed that it was possible to evaluate the reinforcement effect almost quantitatively through experiments and theoretical equations.