STUDY ON PROPERTIES OF HARDENED HIGH PERFORMANCE CONCRETE STRIPPED AT EARLY AGES

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  • 早期脱枠を行ったハイパフォーマンスコンクリートの硬化後の品質
  • ソウキ ダツ ワク オ オコナッタ ハイ パフォーマンス コンクリート ノ コ

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High Performance Concrete, which was developed by the group in the University of Tokyo, is originally designed with low water-cement ratio for the purpose of self-compactability. Therefore, this concrete has sufficient performance in hardened state for ordinary concrete structures even when it is not well cured. In this study, systematic experiments are carried out in order to evaluate the durability of hardened High Performance Concrete when it is stripped at early ages. Two types of High Performance Concrete are used. Some properties related to the durability, such as compressive strength, drying shrinkage, cracking resistance, carbonation, salt penetration and freezing-thawing, are examined. The applicability of High Performance Concrete for early form-removal is discussed based on the experimental results.

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