2015 Volume 71 Issue 2 Pages 161-180
This research proposes a future maintenance plan based on the soundness evaluation through the investigation of concrete and steel properties of 15 years old PC road bridge in severe chloride environment. In this research, investigation of degradation situation from the construction, evaluation of the environmental action of chloride by measuring the salinity of the mortar piece stuck on the concrete surface, measurement of air permeability and water distribution near the concrete surface are performed in order to quantitative evaluation of the properties in connection with the durability of this concrete structure. As a result, although this bridge has some problems resulting from material, or construction, and subsequent maintenance, it was clarified that it is possible to operate this bridge continuously through the future strategic maintenance.
