Y. Wakabayashi, M. Yan, M. Takamura, Ryuutarou Ooishi, Hiroshi Watase, Yujiro Ikeda, Y. Otake
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Development of the neutron salt-meter RANS-μ for non-destructive inspection of concrete structure at on-site use
We have started the development of a transportable neutron salt-meter, we call it RANS-μ, combining a 252Cf neutron source and a prompt gamma neutron activation analysis. Trials of chloride detection measurement with RANS-μ were performed outdoor using removed bridges damaged by chloride attack at an outdoor yard in Public Works Research Institute (PWRI) and a test bridge in Fukushima Robot Test Field. For the measurement at PWRI, the results obtained by RANS-μ were compared with those of the automatic potentiometric titration by drilled powder, and then consistent results were obtained.
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