B146 充てん装置の鉄筋間を流動するコンクリートの流動性状の可視化

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  • Visualization for Concrete Flowing through Steel Bars in Filling Test
  • ジュウテン ソウチ ノ テッキンカン オ リュウドウスル コンクリート ノ リ

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Laboratory experiment were conducted to investigate fresh concrete flowing through vertical steel bars in u-shaped and box-shaped filling test apparatus by visualization technique. It was found that there is the shear plane in fresh concrete flowing the box-shaped filling test apparatus, and that the shear plane in not generated in u-shaped filling test apparatus. This shear plane affected the average maximum shear strain rates of fresh concrete in the filling test. The shear strain rates in box-shaped filling test were about 4 times as large as the strain rates in u-shaped filling test.

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