Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection III

土質安定処理・地盤改良①

Thu. Sep 11, 2025 9:00 AM - 10:20 AM JST
Thu. Sep 11, 2025 12:00 AM - 1:20 AM UTC
3F D1
9:00 AM - 9:10 AM JST(12:00 AM - 12:10 AM UTC)

[III-115]Effect of calcium salts concentration on activity of urease from a water extract of beans Part1

*Sagiri Ikeda1, Takaaki Ohnishi1, Kazuya Kiriyama2, Hirohisa Muto2 (1. RaitoKogyo, 2. Yahagikensetsu Kogyo)
9:10 AM - 9:20 AM JST(12:10 AM - 12:20 AM UTC)

[III-116]Effect of calcium salts concentration on activity of urease from a water extract of beans Part2

*Kazuya Kiriyama1, Hirohisa Muto1, Takaaki Ohnishi2, Sagiri Ikeda2 (1. YAHAGI CONSTRUCTION CO.,LTD., 2. RAITO KOGYO CO.,LTD.)
9:20 AM - 9:30 AM JST(12:20 AM - 12:30 AM UTC)

[III-117]Cement Improvement Effects of Soil Subjected to Rare Earth Extraction Process Using Sulfuric Acid

*Kota Nishida1, Tomohiro Morisawa1, Masaki Kitazume2, Hiroshi Tsujimoto3, Kazuki Ozawa3, Hitoshi Uchida4, Noriaki Nonaka5, Junichi Nakayama6, Atsushi Ohbuchi7, Koichiro Fujinaga8,9 (1. Toa Corporation, 2. Kitazume Geotechnics, 3. Kajima Corporation, 4. Taiheiyo Cement Corporation, 5. IHI Rotating Machinery Engineering, 6. Ota City Industrial Promotion Organization, 7. Rigaku Corporation, 8. University of Tokyo, 9. Chiba Institute of Technology)
9:30 AM - 9:40 AM JST(12:30 AM - 12:40 AM UTC)

[III-118]Strength Characteristics of Stabilized Soil Using Wood Biomass Ash Subjected to Wet-Dry Cycles

*Noboru Nakatani1, Akie Mimura1, Syouta Hakiai2, Kenichi Sato2, Teruaki Takenaka3 (1. Dainippon construction, 2. Fukuoka University, 3. HSS Engineering)
9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[III-119]material properties of multifunctionality recycled soil(OKAGEMORIDO)

*Shusaku Ito3, Nuruyu Takayuki1, Fukuoka taizo1, sato kenichi2 (1. FKG corporation CO., LTD., 2. Fukuoka University, 3. KISO-JIBAN CONSULTANTS CO., LTD.)
9:50 AM - 10:00 AM JST(12:50 AM - 1:00 AM UTC)

[III-120]A study on the on-site treatment of soil improvement material using PS ash as a base material.

*Masao Sagara1, Kanami Takaki1, Hiroshi Nagawa1 (1. FUJITA Corporation)
10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[III-121]The experimental study of the strength property of the ground-improving soil using volcanic ash etc. as admixture

*Hirokazu Inoue1, Kenichi Sugaya1, Yuta Yamagata1, Toshikatsu Seki1, Arisa Ejima1, Hiroshi Yokawa2 (1. Center for Better Living, 2. Chubu University)
10:10 AM - 10:20 AM JST(1:10 AM - 1:20 AM UTC)

[III-122]Strength recovery characteristics of cement-treated clay using microbial functions

*Hideto Nonoyama1, Yoshihisa Miyata1, Daiki Takano2 (1. National Defense Academy, 2. Kumamoto University)
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