Engineering properties of soil-cement mixture improved with recycled fine additives for cutoff wall construction

• Yuelei Li

  Kyoto University

• Toshihiko Miura

  Obayashi Corporation

• Akira Shinmura

  Obayashi Corporation

• Shuji Miyaoka

  Obayashi Corporation

• Toru Inui

  Kyoto University

• Takeshi Katsumi

  Kyoto University

抄録

Basic engineering properties including fluidity, breeding characteristics, unconfined compression strength and hydraulic conductivity are evaluated for soil-cement mixtures for diaphragm wall construction. The specific objective is to assess the effects of 1) adding three different recycled fine additives including foundry dust, concrete powder and gypsum-rich slag, and 2) mixing with seawater on these engineering properties. Although addition of these fine additives decreased the fluidity of soil-cement slurry, adding the appropriate amount of fine additives increased the unconfined compression strength and decreased the hydraulic conductivity of soil-cement mixture after 28 days aging. Furthermore, using seawater instead of fresh water can also improve the strength and hydraulic barrier performances of soil-cement mixture. These results verify the applicability of these recycled fine additives and seawater to soil-cement diaphragm wall construction.

収録刊行物

• Japanese Geotechnical Society Special Publication

  Japanese Geotechnical Society Special Publication 1 (5), 23-26, 2015

  公益社団法人 地盤工学会

キーワード

• soil cement
• diaphragm wall
• industrial by-products
• seawater

詳細情報

• CRID: 1390282680741530368
• NII論文ID: 130005095783
• DOI: 10.3208/jgssp.jpn-30
• ISSN: 21888027
• Web Site: https://www.jstage.jst.go.jp/article/jgssp/1/5/1_JPN-30/_pdf
• 本文言語コード: en
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