Journal Paper

• Shuji Nagaoka, Kazuhide Nakayama, Nami Urakawa, 塚越雅幸. 水セメント比および材齢の異なるモルタルに含浸した表面含浸材の改質効果と電気的特性との関係, コンクリート構造物の補修，補強，アップグレード論文報告集, Vol. 24, pp. 245-250, Oct. 2024.
• Konoka Fujimoto, Kazuhide Nakayama, Shuji Nagaoka, Mitsuyasu Iwanami. 若材齢におけるジオポリマーの電気抵抗に及ぼす空隙構造の影響, コンクリート構造物の補修，補強，アップグレード論文報告集, Vol. 24, pp. 339-344, Oct. 2024.
• Risako Fujikawa, Naoki Ishinabe, Kazuhide Nakayama, Mitsuyasu Iwanami. 高水圧作用下の水分浸透量がモルタルのひずみ挙動に与える影響に関する実験的検討, コンクリート工学年次論文集, Vol. 46, No. 1, pp. 589-594, June 2024.
• Kotaro Maekawa, Ryo Sakamoto, Nobuhiro Chijiwa, Kazuhide Nakayama. 実環境下におけるジオポリマーコンクリートの時間依存変形特性に関する検討, コンクリート工学年次論文集, Vol. 46, No. 1, pp. 1219-1224, June 2024.
• Shuji Nagaoka, Kazuhide Nakayama, Mitsuyasu Iwanami. シラン系表面含浸材により改質されたモルタルの撥水性能が二電極法を用いた交流インピーダンス測定結果に与える影響, コンクリート工学年次論文集, Vol. 46, No. 1, pp. 1717-1722, June 2024.
• Kento Tsuboi, Mitsuyasu Iwanami, Kazuhide Nakayama. ポーラスコンクリートの配合設計法の高度化に関する実験的検討, コンクリート工学年次論文集, Vol. 46, No. 1, pp. 1147-1152, June 2024.
• W. Thaue, M. Iwanami, K. Nakayama, W. Yodsudjai:. Influence of acetic acid treatment on microstructure of interfacial transition zone and performance of recycled aggregate concrete, Journal of Construction and Building Materials, Vol. 417, Feb. 2024.

International Conference (Reviewed)

• Wiracha Thaue, Mitsuyasu Iwanami, Kazuhide Nakayama. Enhancing mechanical properties of recycled aggregate concrete prepared with waste soaking solution from acetic acid pre-soaking treatment, fib Syposium 2024, Nov. 2024.
• Kotaro Maekawa, Ryo Sakamoto, Nobuhiro Chijiwa, Kazuhide Nakayama. Study on Time-Dependent Deformation Characteristics of Geopolymer Concrete, The Eighteenth East Asia-Pacific Conference on Structural Engineering and Construction, Nov. 2024.
• Kento Tsuboi, Mitsuyasu Iwanami, Kazuhide Nakayama. The Improvement of Permeable Concrete Mix Design Method with regards to Void Ratio, FIB Symposium 2024, Nov. 2024.
• Konoka Fujimoto, Kazuhide Nakayama, Shuji Nagaoka, Mitsuyasu Iwanami. Experiment Investigation on Evaluation Method of Hardening Behavior of Geopolymer Mortar by Using Electrical Resistance, Sixth International Conference on Sustainable Construction Materials and Technologies (SCMT6), June 2024.
• Shuji Nagaoka, Kazuhide Nakayama, Mitsuyasu Iwanami. An analytical study on electrical properties of silane-treated concrete, Sixth International Conference on Sustainable Construction Materials and Technologies (SCMT6), June 2024.
• Horhok Lim, Mitsuyasu Iwanami, Nobuhiro Chijiwa, Kazuhide Nakayama. Effect of Cement Addition on Shrinkage Properties of Fly Ash-Based Geopolymer, Sixth International Conference on Sustainable Construction Materials and Technologies (SCMT6), June 2024.

International Conference (Not reviewed / Unknown)

• Horhok Lim, Mitsuyasu Iwanami, Kazuhide Nakayama, Ryo Sakamoto. Influence of Pore Structure Transformation Induced by Cement Addition on Drying Shrinkage Properties of Fly Ash-Based Geopolymer, 10th International Conference on Advanced Materials Development and Performance (AMDP2024), Sept. 2024.
• Ryo Takeshita, Mitsuyasu Iwanami, Kazuhide Nakayama. Effect of Cover and Surface Crack Width on Water Movement along Reinforcing Steel in Concrete, 10th International Conference on Advanced Materials Development and Performance (AMDP2024), Sept. 2024.
• Ayuka Morita, Masayuki Tsukagoshi, Nami Urakawa, Kazuhide Nakayama. Influence of pore structure on the penetration efficiency of surface impregnating agents in concrete, 10th International Conference on Advanced Materials Development and Performance (AMDP2024), Sept. 2024.
• Ryo Sakamoto, Nobuhiro Chijiwa, Kentaro Saito, Kazuhide Nakayama, CheChia Kang. Development of New Concrete Building Material with Excellent Radio Wave Permeability, Joseph Aspdin 200 International Symposium, Innovations in Binder Technology, July 2024.
• Kazuhide Nakayama, Konoka Fujimoto, Shuji Nagaoka, Mitsuyasu Iwanami, Nobuhiro Chijiwa. Relation between electrical resistance and pore structure characteristics of early age geopolymer, Joseph Aspdin 200 International Symposium, Innovations in Binder Technology, July 2024.

Domestic Conference (Not reviewed / Unknown)

• Naoki Ishinabe, Mitsuyasu Iwanami, Kazuhide Nakayama. 深海3500mで1年間暴露したRCはりのひずみ挙動と引き揚げ後の載荷試験結果, 令和6年度土木学会全国大会, V-479, Sept. 2024.
• Konoka Fujimoto, Kazuhide Nakayama, Shuji Nagaoka, Mitsuyasu Iwanami. 電気抵抗を用いたジオポリマーの硬化過程の評価に関する検討, 土木学会第79回年次学術講演会, Sept. 2024.
• Shuji Nagaoka, Kazuhide Nakayama, Mitsuyasu Iwanami. 薄型セメントペースト試験体を用いたシラン改質層の電気的特性に関する検討, 令和6年度土木学会全国大会, V-845, Sept. 2024.
• Hiromu Tanaka, Kazuhide Nakayama, Nobuhiro Chijiwa, Mitsuyasu Iwanami. 目開きを有するプレキャストコンクリート接合部における打継目直角方向への塩分浸透, 令和6年度土木学会全国大会, V-756, Sept. 2024.
• Kazuhide Nakayama, 塚越雅幸, Nami Urakawa. ケイ酸塩系含浸材の浸透及び吸水抑制効果に及ぼす素地モ ルタルの性質の影響 その 1 表面含浸材の浸透性, 日本建築学会大会学術講演梗概集（関東）, 日本建築学会, Aug. 2024.
• Shuya Mineyama, Mitsuyasu Iwanami, Kazuhide Nakayama. Cement Silica Fume Slurry Soaking Method to Improve Compressive Strength of Recycled Aggregate Concrete, 15th Multidisciplinary International Student Workshop 2024, Aug. 2024.
• 森田歩花, 塚越雅幸, Nami Urakawa, Kazuhide Nakayama. ケイ酸塩系含浸材の浸透及び吸水抑制効果に及ぼす素地モ ルタルの性質の影響 その2 含浸材がモルタルの吸水抑制効果に及ぼす影響, 日本建築学会大会学術講演梗概集（関東）, 日本建築学会, Aug. 2024.
• Nami Urakawa, 塚越雅幸, Kazuhide Nakayama. ケイ酸塩系含浸材の浸透及び吸水抑制効果に及ぼす素地モルタルの性質の影響 その3 水分移動予測シミュレーションによる含浸材の拡散係数の推定, 日本建築学会大会学術講演梗概集（関東）, 日本建築学会, Aug. 2024.
• Ryo Takeshita, Mitsuyasu Iwanami, Kazuhide Nakayama. Effect of Water Immersion Time on Water Movement Distance along Rebar in Reinforced Concrete, 15th Multidisciplinary International Student Workshop 2024, Aug. 2024.
• Kento Tsuboi, Mitsuyasu Iwanami, Kazuhide Nakayama. Experimental Investigation on Variation of Paste Content in Permeable Concrete, 15th Multidisciplinary International Student Workshop 2024, Aug. 2024.
• Nami Urakawa, 塚越雅幸, Kazuhide Nakayama, 櫨原弘貴. ケイ酸塩系含浸材の浸透および吸水防止効果に及ぼす素地モルタルの性質の影響, 日本建築学会九州支部研究報告集, Vol. 63, pp. 129-134, Mar. 2024.

Patent

• Mitsuyasu Iwanami, Kazuhide Nakayama. 鉄筋コンクリート構造物の健全性把握方法. Patent. Registered. 国立大学法人東京工業大学, 東亜建設株式会社, 株式会社ナカボーテック. 2020/09/01. 特願2020-146705. 2022/03/11. 特開2022-041482. 特許第7466866号. 2024/04/05 2024.

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