STUDY ON INFLUENCE OF MIX PROPORTION ON WORKABILITY OF STEEL FIBER REINFORCED CONCRETE

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  • 鋼繊維補強コンクリートの調合条件がワーカビリティーに及ぼす影響に関する研究

Abstract

<p>The conditions of mix proportion of steel fiber reinforced concrete were examined to obtain both the required workability and the required ductility. Under the condition of the amount that the unit absolute volume of coarse aggregate was 250 L/m3 or more, the larger it was, the greater the decrease in slump caused by mixing steel fibers was, and the velocity of concrete passing through obstacles tended to be slower. Furthermore, a simple method was proposed to evaluate the resistance against material segregation of concrete from the quality and the unit content of each component of the mortar.</p>

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