道路橋床版の点検診断と長寿命化技術(2)

[CS8-13] Examination of deterioration diagnosis of sedimentation of floor slab by detecting moisture with electromagnetic wave radar

〇Tsubasa Noda¹, Tadashi Matsumoto¹, Masahiro Ishida¹, Izumi Tanikura², Mio Uchida² (1.Public Works Reserch Institute Center for Advanced Engineering Structual Assessment and Research, 2.Japan Construction Method and Machinery Research Institute)

Keywords:slab, Sedimentation, Electromagnetic wave radar, Preventive maintenance, Diagnosis, Inspection method

In order to maintain and manage a huge amount of road bridges efficiently, it is necessary to screen potential deterioration points before deterioration occurs and to conduct intensive inspections. Among them, it is considered effective to detect the stagnation point where deterioration of the slab progresses remarkably. In this study, we focused on the electromagnetic wave radar method and performed measurements on a real bridge to examine a method of detecting water accumulation on a floor slab. In addition, we examined the application of small diameter micro-fracture concrete internal inspection for deterioration diagnosis of floor slabs.