“Guideline on Utilization of Placing the Concrete Having 12 cm of Slump in Site (by MLIT)” from a Point of View on “Recommendations Related to Fresh Concrete” Published by JSCE

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  • Maekawa K.
    東京大学大学院工学系研究科社会基盤学専攻，横浜国立大学都市イノベーション研究院
  • Hashimoto C.
    徳島大学大学院社会産業理工学研究部理工学域
  • Sakata N.
    鹿島建設（株） 土木管理本部 土木技術部

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  • 土木学会関連指針の観点からの「流動性を高めた現場打ちコンクリートの活用に関するガイドライン（国土交通省）」について
  • ドボク ガッカイ カンレン シシン ノ カンテン カラ ノ 「 リュウドウセイ オ タカメタ ゲンバウチ コンクリート ノ カツヨウ ニ カンスル ガイドライン(コクド コウツウショウ)」 ニ ツイテ

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Abstract

<p>In July 2016, the “Guidelines on Utilization of Cast-in-Place Concrete with Slump of 12 cm” ( hereafter, “these Guidelines”) went into force for general reinforced concrete structures ordered by the Ministry of Land, Infrastructure, Transport and Tourism. These Guidelines change the standard slump from the 8 cm used for more than a half century to 12 cm. Further, these Guidelines specify the use of self-compacting concrete according to conditions. Evidently, the ultimate goal for concrete work would be completely automated concrete work using self-compacting concrete that does not require manual or mechanical compaction. That said, adoption of the new standard slump value of 12 cm is expected to greatly improve the productivity of concrete work. The “Recommendation for Mix Design of Fresh Concrete and Construction Placement related Performance Evaluation－2016” and the “Recommendation for Mix Design and Construction of Self-Compacting Concrete－2012” were extensively drawn upon as a technical basis for these Guidelines. This paper describes the relationship between these Guidelines and both above-mentioned mix design and construction guidelines.</p>

Journal

  • Concrete Journal

    Concrete Journal 56 (3), 213-217, 2018

    Japan Concrete Institute

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