FUNDMENTAL STUDY OF CONCRETE USING AIR-CRUSHED ELECTRIC ARC FURNACE OXIDIZING SLAG FINE AGGREGATE

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  • WATANABE Kiyonobu
    TOSHIN CORPORATION CO., LTD.（2066, Kamiyabe-cyo, Totsuka-ku, yokohama-shi, Kanagawa 245-0053, japan）
  • HIROFUJI Yoshikazu
    TOSHIN CORPORATION CO., LTD.（2066, Kamiyabe-cyo, Totsuka-ku, yokohama-shi, Kanagawa 245-0053, japan）
  • KAWASAKI Akio
    TOSHIN CORPORATION CO., LTD.（2066, Kamiyabe-cyo, Totsuka-ku, yokohama-shi, Kanagawa 245-0053, japan）
  • FUKUI Nobuyuki
    HOSHINO SANSHO CO., LTD.（Inside the Tahara Plant, Tokyo Steel Co., Ltd., 2-1-3, Shirahama, Tahara-shi, Aichi 441-3436, japan）

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Other Title
  • 風砕した電気炉酸化スラグ細骨材を用いたコンクリートの基礎的検討

Abstract

<p>In recent years, there has been an increasing demand for improved durability and earthquake resistance for buildings. Due to this demand, the strength of concrete has increased and the viscosity tends to increase, and the bar arrangement has become more dense, making it difficult to fill the concrete densely. On the other hand, from the viewpoint of reducing environmental impact and protecting natural resources, air-crushed electric furnace oxidizing slag fine aggregate standardized in JIS A 5011-4：2018 is used to improve the fluidity of concrete and improve the pouring work. We have been studying to improve the quality of the building frame by streamlining and improving workability, and improving filling performance in high-density reinforcement locations. From this, it was confirmed that the amount of electric furnace oxidizing slag used can be used up to 40％ as part of the fine aggregate within the scope of the experiment in this report.</p>

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