STRENGTH PREDICTION MODEL FOR DREDGED SOIL IMPROVED BY BASIC OXYGEN FURNACE SLAG

DOI Web Site 4 References
  • KOKADO Takeshi
    日鉄環境株式会社 スラグ資源化技術センター
  • SUDA Daisaku
    日鉄環境株式会社 分析ソリューション事業本部
  • AKASHI Yuzo
    日本製鉄株式会社 スラグ事業・資源化推進部

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Other Title
  • カルシア改質土の強度予測モデルに関する研究

Abstract

<p> This study aims to build a strength prediction model for dredged soils improved by basic oxygen furnace slag. The mechanism for improving the strength of dredged soils is considered that amorphous silica in dredged soils and portlandite in basic oxygen furnace slag dissolve, and H4SiO4(aq) and Ca++ form calcium silicate hydrate (C-S-H). Based on this hypothesis, equations to calculate reaction mass of C-S-H are proposed. The relationship between calculated reaction mass of C-S-H and uniaxial compressive strength of improved soils cured for 91 days shows a good correlation.</p>

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