Example of Application of Concrete Using a Large Amount of Fly Ash to a Building Structure

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  • Motomura K.
    九州電力（株） テクニカルソリューション統括本部 土木建築本部
  • Tsuzuki H.
    九州電力（株） 松浦発電所建設所
  • Hashiguchi D.
    西日本技術開発（株） 調査解析部
  • Kuroiwa S.
    大成建設（株） 技術センター 都市基盤技術研究部

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Other Title
  • フライアッシュを多量に使用したコンクリートの実構造物への適用例
  • フライアッシュ オ タリョウ ニ シヨウ シタ コンクリート ノ ジツ コウゾウブツ エ ノ テキヨウレイ

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Abstract

<p>Active use of fly ash as a concrete admixture holds promise for the reduction of CO2 emissions and the eff ective utilization of resources, and the accumulation of technical knowledge regarding the application of fly ash based concrete to building construction works is desirable as instances of such application are still few in number. When concrete using a large amount of fly ash is applied to a building structure, there are issues such as fresh properties, change in air content over time, concrete strength correction value, exothermic characteristics, and carbonation resistance. This paper about a construction project where concrete using a large amount of fly ash was applied describes, among other things, a preliminary test that determined concrete strength correction value 28S91 equivalent to fly ash cement type C to be 0, the results of quality control tests on the fly ash used and the produced concrete, which exceeded 30000m3 in volume, as well as the temperature measurement results for the actual structure.</p>

Journal

  • Concrete Journal

    Concrete Journal 57 (7), 481-488, 2019

    Japan Concrete Institute

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