LONG TERM UNCONFINED COMPRESSIVE STRENGTH PROPERTIES OF CEMENT-TREATED SOIL
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- UENO Kazutaka
- 九州大学大学院 工学府 建設システム工学専攻
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- KASAMA Kiyonobu
- 東京工業大学 環境・社会理工学院 土木・環境工学系
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- NAKAGAWA Yasuyuki
- 九州大学大学院 工学研究院 海域港湾環境防災共同研究部門
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- NEGI Takashi
- 国土交通省 九州地方整備局 北九州港湾・空港整備事務所
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- MINAMI Masaharu
- 国土交通省 九州地方整備局 北九州港湾・空港整備事務所
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- ZEN Kouki
- 一般財団法人沿岸技術研究センター
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- KASUGAI Yasuo
- 一般財団法人沿岸技術研究センター
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- KATAGIRI Masaaki
- 株式会社日建設計シビル
Bibliographic Information
- Other Title
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- 高圧脱水固化処理装置で作製した浚渫土砂ブロックの長期強度
- コウアツ ダッスイコカ ショリ ソウチ デ サクセイ シタ シュンセツドシャ ブロック ノ チョウキ キョウド
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Abstract
<p> Cement-treated soils have been developed in the field geotechnical engineering, and cement-mixing has been widely utilized as a recycling technique.Authors have developed a technique called the cement-mixing and mechanical dehydration method (CMD) as one of recycling techniques for soft clay slurry and investigated the strength properties and the dehydration properties of CMD soil block.This study investigates long-term strength of CMD soil block in terms of the difference of the manufacture season and curing condition. The results obtained from this study are summarized below.</p><p> (1) The water content of CMD soil block decreases about 15 % decrease with increasing curing days irrespective of the season of manufacture season.</p><p> (2) Unconfined compressive strength of CMD soil block produced in summer seasons does not change from 10 MN/m2. Unconfined compressive strength of those produced in winter season increases about 9 MN/m2 with increasing curing days.</p><p> (3) CMD soil block with low water-cement ratio shows high unconfined compressive strength. There is the following relationship. qu=14.566×(W/C)-1.5316 summer season, qu=6.8697×(W/C)-1.0089 for winter season.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 75 (2), I_845-I_850, 2019
Japan Society of Civil Engineers