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Proposal of Sustainable Recycle System of High Quality Recycled Aggregate with Blast-furnace Slag Cement

Research Project

Project/Area Number 21760345
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Civil engineering materials/Construction/Construction management
Research InstitutionYokohama National University

Principal Investigator

HOSODA Akira  Yokohama National University, 環境情報研究院, 准教授 (50374153)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywordsコンクリート / 持続可能 / 高炉セメント / 再生骨材 / リサイクル / ひび割れ
Research Abstract

In this research, in order to contribute to sustainable recycle system of high quality recycled aggregate with blast-furnace slag cement, how to improve crack resistance of slag cement concrete was investigated.
The main results of this study are as shown below.
(1) The effectiveness of the use of lightweight fine aggregate to reduce shrinkage of concrete and to improve crack resistance of slag cement concrete was exhibited.
(2) The method to analyze microcrack around aggregate with Acoustic Emission Method was established. AE technique was utilized for very early age concrete under high temperature history. The mechanism of the generation of microcracking was clarified and the properties of microcracking were examined in detail.
(3) The method to analyze microcrack of externally restrained concrete with AE was developed. The cracking strength of restrained specimens was much lower than the tensile strength of unrestrained specimens. The reason was investigated with AE analysis.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (18 results)

All 2010 2009

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (12 results)

  • [Journal Article] Detection of Microcracking in Concrete Subjected to Elevated Temperature at Very Early Age by Acoustic Emission2010

    • Author(s)
      Ha Ngoc Son, Akira Hosoda
    • Journal Title

      Journal of Advanced Concrete Technology Vol.8, No.2

      Pages: 201-211

    • NAID

      130000300089

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of Microcracking in Very Early Age Concrete Cumulative AE hits Subjected to Elevated Temperature by AE2010

    • Author(s)
      Ha Ngoc Son, Akira Hosoda, Takeshi Watanabe
    • Journal Title

      Proceedings of JCI Vol.32, No.1

      Pages: 323-328

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Detection of microcracking in concrete subjected to elevated temperature at very early age by acoustic emission2010

    • Author(s)
      Ha Ngoc Son, Akira HOSODA
    • Journal Title

      Journal of Advanced Concrete Technology

      Volume: Vol.8, No.2 Pages: 201-211

    • NAID

      130000300089

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of microcracking in very early age concrete subjected to elevated temperature by AE2010

    • Author(s)
      Ha Ngoc Son, Akira HOSODA, Takeshi WATANABE
    • Journal Title

      コンクリート工学年次論文集

      Volume: Vol.32, No.1 Pages: 323-328

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of microcracking in concrete subj ected to elevated temperatureat very early age by acoustic emission2010

    • Author(s)
      Ha Ngoc Son, Akira HOSODA
    • Journal Title

      Journal of Advanced Concrete Technology ((2010年6月号に掲載確定)(印刷中))

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of microcracking in very early age concrete subjected to elevated temperature by AE2010

    • Author(s)
      Ha Ngoc Son, Akira HOSODA, Takeshi WATANABE
    • Journal Title

      コンクリート工学年次論文集 ((2010年7月掲載決定)(印刷中))

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Organizer
      第6回コンクリート材料-構造の最先端技術に関する研究会
    • Place of Presentation
      横浜国立大学 招待講演
    • Year and Date
      2010-12-21
    • Related Report
      2010 Final Research Report
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Author(s)
      細田暁
    • Organizer
      コンクリート材料-構造の最先端技術に関する研究会(第6回)
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2010-12-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Organizer
      青森県のアセットマネジメント研究会
    • Place of Presentation
      招待講演
    • Year and Date
      2010-11-12
    • Related Report
      2010 Final Research Report
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Author(s)
      細田暁
    • Organizer
      青森県のアセットマネジメント研究会
    • Place of Presentation
      八戸市
    • Year and Date
      2010-11-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Organizer
      山口県の構造物の表層品質調査の結果速報会
    • Place of Presentation
      招待講演
    • Year and Date
      2010-07-30
    • Related Report
      2010 Final Research Report
  • [Presentation] ひび割れ抑制対策と表層品質の向上2010

    • Author(s)
      細田暁
    • Organizer
      山口県の構造物の表層品質調査の結果速報会
    • Place of Presentation
      山口県山口市
    • Year and Date
      2010-07-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] Characterization of Microcracking in Very Early Age Concrete Subjected to Elevated Temperature by AE2010

    • Organizer
      コンクリート工学年次大会
    • Place of Presentation
      Ha Ngoc Son
    • Year and Date
      2010-07-10
    • Related Report
      2010 Final Research Report
  • [Presentation] Characterization of microcracking in very early age concrete subjected to elevated temperature by AE2010

    • Author(s)
      Ha Ngoc Son
    • Organizer
      コンクリート工学年次大会
    • Place of Presentation
      JCI年次大会会場(埼玉)
    • Year and Date
      2010-07-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] 高炉スラグタスクフォース成果報告2010

    • Organizer
      土木学会333委員会成果報告会
    • Year and Date
      2010-05-24
    • Related Report
      2010 Final Research Report
  • [Presentation] 高炉スラグタスクフォース成果報告2010

    • Author(s)
      細田暁
    • Organizer
      土木学会333委員会 成果報告会
    • Place of Presentation
      土木学会講堂
    • Year and Date
      2010-05-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 高炉スラグコンクリートのひび割れ抵抗性2009

    • Organizer
      日本コンクリート工学協会の研究専門委員会にて
    • Place of Presentation
      招待講演
    • Year and Date
      2009-09-24
    • Related Report
      2010 Final Research Report
  • [Presentation] 高炉スラグコンクリートのひび割れ抵抗性2009

    • Author(s)
      細田暁
    • Organizer
      日本コンクリート工学協会 研究専門委員会
    • Place of Presentation
      JCI半蔵門ビル
    • Year and Date
      2009-09-24
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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