Trial manifacture of the cracked concrete cutting tool

Koda, Yuya 

We plan with the dismantling of the equipment associated with the decommissioning of "Fugen", be dismantled in order even the basics such as concrete frame. If the concrete of these have a crack in the surface layer due to aging, etc., from the possibility that radioactive material has penetrated the cracks section can not be ruled out necessarily, processing "waste not a radioactive waste (NR)" as-in order to dispose of, it is necessary to separate physically the crack site. However, when implementing the separating operation in a nuclear reactor facility, in consideration to establish a method for implementing and reasonably safe working is a problem the diffusion preventing dust which may contain radioactive material. For implementing the measures described above, the case is intended to present a challenge in the 29th Open Seminar.