Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection III

地盤環境①

Thu. Sep 11, 2025 1:00 PM - 2:20 PM JST
Thu. Sep 11, 2025 4:00 AM - 5:20 AM UTC
3F A2
1:00 PM - 1:10 PM JST(4:00 AM - 4:10 AM UTC)

[III-53]Mechanical and leaching properties of improved soil with solidification material based on carbonated recycled material

*Takuro Fujikawa1, Shinichi Noguchi2, Miho Nishikawa2, Junichi Kojima3, Takahiro Hirata3, Minoru Tokita3, Hirofumi Sakanakura4, Takayuki Honjo4, Seiji Inoba5, Shohei Ogawa5 (1. Fukuoka University, 2. Mud Recycling Association, 3. AICO Co., Ltd., 4. National Institute for Environmental Studies, 5. Central Research Institute of Electric Power Industry)
1:10 PM - 1:20 PM JST(4:10 AM - 4:20 AM UTC)

[III-54]EFFECTS OF WATER ADDITION AND VENTILATION OPERATIONS ON CARBONATION OF SAMPLES PACKED IN CYLINDRICAL CONTAINERS

*Hiroaki Sano1, Mikio Yamada2, Masayuki Aizawa3, Tsukasa Kashiwabara4, Keisuke Okuhara3, Keiji Sumigawa3, Takatoshi Nakamura5 (1. National Defense Academy , 2. Sun Engineer Co., Ltd., 3. Nippon Steel Co., Ltd., 4. Nippon Steel Environment Co., Ltd., 5. Nippon Steel Slag Products Co., Ltd.)
1:20 PM - 1:30 PM JST(4:20 AM - 4:30 AM UTC)

[III-55]Mechanical evaluation of FCB crushed material generated by excavation as embankment material

*Tomoya Yonezawa Yonezawa1 (1. Nippon Expressway Research Institute Company Limited)
1:30 PM - 1:40 PM JST(4:30 AM - 4:40 AM UTC)

[III-56]Demonstration test of quantitative addition of hexavalent chromium reducing purifiers using the S+4 method and method for confirming the amount of hexavalent chromium added.

*Taiga Shiota1, Yasunori Arai1, Takuya Miura2, Naoki Hatsuno3, Syouko Hatsuno3, Yuuzi Inamoto4, Shinsuke Ujiie5 (1. Seibu construction Co.,Ltd., 2. National lnstitute of Technology(Kosen),Fukushima College, 3. Hatsuno Construction Material Industry Co., Ltd., 4. Leaf air Co.,Ltd., 5. Hojun Co.,Ltd.)
1:40 PM - 1:50 PM JST(4:40 AM - 4:50 AM UTC)

[III-57]Applicability of biomass (PKS) ash-based modifiers to various high water content ratio dredged sediments

*Kenta Mizuno1, Noboru Matsuzaka1 (1. Wakachiku Construction Co., Ltd.)
1:50 PM - 2:00 PM JST(4:50 AM - 5:00 AM UTC)

[III-58]Effect of steelmaking slag with different calcium leaching on the improvement of surplus soil

*Daiki Aso1, Masahiro Ichimura1, Yuuzo Akashi1 (1. Nippon Steel Corporation)
2:00 PM - 2:10 PM JST(5:00 AM - 5:10 AM UTC)

[III-59]Experimental study on the effect of compaction on hexavalent chromium leaching from Recycling Crushed Concrete

*Masataka Morimoto1, Hisashi Abe1, Shinichiro Fujisawa1, Daichi Yokoyama1, Susumu Nakajima1 (1. Railway Technical Research Institute)
2:10 PM - 2:20 PM JST(5:10 AM - 5:20 AM UTC)

[III-60]The influence of test methods on the leaching amount of hexavalent chromium in recycled concrete gravel

*Susumu Nakajima1, Hisashi Abe1, Shinichiro Fujisawa1, Masataka Morimoto1, Daichi Yokoyama1 (1. Railway Technical Research Institute)
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