STUDY ON INFLUENCE OF COARSE AGGREGATE ON FLOWABILITY OF SELF-COMPACTING CONCRETE

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  • MIYANO Kazuki
    Graduate School of Engineering, Utsunomiya Univ.
  • MASUDA Yoshihiro
    Dept. of Architecture and Civil Engineering, Faculty of Engineering, Utsunomiya Univ.
  • NAKAMURA Shigeharu
    Dept. of Architecture and Civil Engineering, Faculty of Engineering, Utsunomiya Univ.
  • GOMI Shinji
    Research and Development Institute, Nissan Rinkai Construction

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  • 高流動コンクリートの流動性に及ぼす粗骨材の影響に関する研究
  • コウリュウドウ コンクリート ノ リュウドウセイ ニ オヨボス ソコツザイ ノ エイキョウ ニ カンスル ケンキュウ

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The influence of quantity and shape of coarse aggregate and flowability of mortar on flowability of self-compacting concrete is investigated in this study. The coefficient of thickness of mortar layer is introduced based on coefficient of coarse aggregate's shape, quantity of coarse aggregate and solid content in coarse aggregate. The coefficient of coarse aggregate's shape is introduced by projection circumference, projection area, volume and grading of coarse aggregate. The flowability of self-compacting concrete can be estimated by coefficient of thickness of mortar layer and flowability of mortar.

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