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Osamu Kontani

affiliation not provided to SSRN

  • affiliation not provided to SSRN

SCHOLARLY PAPERS

4

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170

TOTAL CITATIONS

0

Scholarly Papers (4)

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1.

Melting Behavior of Aggregate and Concrete: Concrete Loss in the RPV Pedestal during the Fukushima Daiichi Severe Accident

Downloads 77 (823,616)

Melting Behavior of Aggregate and Concrete: Concrete Loss in the RPV Pedestal during the Fukushima Daiichi Severe Accident

Number of pages: 56 Posted: 06 Nov 2025
Osamu Kontani, Shohei Sawada, Shunsuke Ishikawa, Daisuke Kambayashi and Soi Sugimoto
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 50 (1,083,731)

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concrete loss, high temperature, aggregate, concrete, melting, viscosity

Melting Behavior of Aggregate and Concrete: Concrete Loss in the RPV Pedestal during the Fukushima Daiichi Severe Accident

Number of pages: 56 Posted: 06 Nov 2025
Osamu Kontani, Shohei Sawada, Shunsuke Ishikawa, Daisuke Kambayashi and Soi Sugimoto
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 27 (1,400,723)

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concrete loss, high temperature, aggregate, concrete, melting, viscosity

2.

Proposal for Standard Elemental Composition of Ordinary Concrete for Radiation Shielding Design

Number of pages: 41 Posted: 28 Feb 2025
Osamu Kontani, Osamu Sato, Shohei Sawada, Takafumi Igari, Keigo Fujikawa, Hisanobu Akatsuka and Ippei Maruyama
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Nagoya University
Downloads 37 (1,222,651)

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Shielding calculation, Standard elemental composition, Water content, Concrete density, Concrete mix proportion, Silica aggregate, Void

3.

Neutron Flux Impact on Rate of Expansion of Quartz

Number of pages: 45 Posted: 24 Sep 2024
Ippei Maruyama, Kenta Murakami, Takahiro Ohkubo, Shohei Sawada, Osamu Kontani, Takafumi Igari, MASAKI KAWAI and Junji Eto
Nagoya University, University of Tokyo - The University of Tokyo, Chiba University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 28 (1,345,526)

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Keywords: neutron flux, quartz, radiation-induced expansion, relaxation, healing

4.

Evaluation of Radiation-Induced Amorphization of Α-Quartz in Concrete Aggregates Using Raman Spectroscopy

Number of pages: 33 Posted: 12 Jul 2024
Amr Meawad, Kenta Murakami, Takahiro Ohkubo, Osamu Kontani, Junji Eto, Minh Do Thi, Claudia Aparicio, Chinthaka M. Silva and Ippei Maruyama
Capital University, University of Tokyo - The University of Tokyo, Chiba University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - Pacific Northwest National Laboratory and Nagoya University
Downloads 28 (1,345,526)

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Raman spectroscopy, X‐ray diffraction, neutron irradiation, meta-chert, sandstone, metamictization