Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection V

塩害1

Thu. Sep 11, 2025 9:30 AM - 10:50 AM JST
Thu. Sep 11, 2025 12:30 AM - 1:50 AM UTC
C311
9:30 AM - 9:40 AM JST(12:30 AM - 12:40 AM UTC)

[V-34]A consideration on analytical method for chloride content in concrete exposed to marine environment

*Reiko Okamoto1, Shota Kondo1, Shigeyoshi Miyahara1, Akihito Hata1, Hisahumi Asaue2, Wenxu Sun2, Tomoki Shiotani2 (1. TAISEI CORPORATION, 2. KYOTO UNIVERSITY)
9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[V-35]Relationship between steady-state and non-steady-state electro migration tests and the diffusion coefficient of chloride ions in concrete after long-term exposure under marine environment

*Daisuke Takaichi1, Ishida Masao2, Shinmi Tatsuo3, Yamaji Toru4, Koike Kentaro4 (1. Japan Cement Association, 2. Taiheiyo Cement Corporation, 3. Tokuyama Corporation, 4. National Institute of Maritime, Port and Aviation Technology Port and Airport Research Institute)
9:50 AM - 10:00 AM JST(12:50 AM - 1:00 AM UTC)

[V-36]Experimental study on corrosion rate of steel in concrete during propagation stage

*Kenichi HORIGUCHI1, Satoko NAOMACHI1 (1. TAISEI Corporation)
10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[V-37]Experimental study on the relationship between the corrosion rate of reinforced concrete in salt-damaged environments and [Cl-]/[OH-] in the pore solution

*Satoko Naomachi1, Kenichi Horiguchi1 (1. TAISEI CORPORATION)
10:10 AM - 10:20 AM JST(1:10 AM - 1:20 AM UTC)

[V-38]A consideration on periodic inspection of road bridges using cathodic protection method

*Kazushi Nagoya1, Motomu Mashiko2, Manabu Hayashihara2, Kazuharu Kobayashi3, Kazuhito Sasaki4, Hironori Sawae1, Tomoharu Sekiguchi1 (1. Yachiyo Engineering Co., Ltd, 2. Ministry of Land, Infrastructure, Transport and Tourism, Hokuriku Regional Development Bureau, Road Department, 3. Ministry of Land, Infrastructure, Transport and Tourism, Hokuriku Regional Development Bureau, Takada River and National Highway Office, 4. Ministry of Land, Infrastructure, Transport and Tourism, Hokuriku Regional Development Bureau, Hokuriku Technology Office)
10:20 AM - 10:30 AM JST(1:20 AM - 1:30 AM UTC)

[V-39]Fundamental Study on the Design of Chloride Threshold Value of Reinforced Concrete in Cold Regions

*Hirotake Endoh1, Norihiro Mihara1 (1. Civil Engineering Research Institute for Cold Region, Public Works Research Institute)
10:30 AM - 10:40 AM JST(1:30 AM - 1:40 AM UTC)

[V-40]Study on the chloride ion penetrability into concrete and investigation/diagnostic method for highway bridge RC slabs sprayed with deicing salt

*Hiroki Matsuda1, Seiya Okazaki1, Hideyori Sato1 (1. Nexco-Engineering Niigata Co.,Ltd.)
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