INFLUENCE OF CONSTRUCTION CHARACTERISTICS ON THE DETERIORATION OF REINFORCED CONCRETE STRUCTURES AFTER LONG-TERM SERVICE

Abstract

 This study focused on the reinforced concrete structures of the Tokaido Shinkansen and the Sanyo Shinkansen to clarify the effects of construction characteristics on the deterioration after long-term service. By using construction journals, construction characteristics based on the construction management system and the materials and technologies were clarified. In addition, for the Tokaido Shinkansen, compared with these characteristics and the survey results of real structures, it was confirmed that good quality concrete structures were constructed. Furthermore, by comparing the results with those of the Sanyo Shinkansen, it was confirmed that the construction characteristics, water to cement ratio and chloride ion content, affected the deterioration of the concrete structures after long-term service.