STUDY ON IMPROVEMENT OF THE PROPERTIES OF ENVIRONMENT LOAD REDUCE TYPE HIGH STRENGTH CONCRETE

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  • MARUOKA Masanori
    UTSUNOMIYA UNIVERSITY, Graduate School of Engineering（7-1-2, Yoto, Utsunomiya-shi, Tochigi 321-8585, Japan）
  • FUJIWARA Hiromi
    UTSUNOMIYA UNIVERSITY, Graduate School of Engineering（7-1-2, Yoto, Utsunomiya-shi, Tochigi 321-8585, Japan）
  • SUGAWARA Takemi
    UTSUNOMIYA UNIVERSITY, Graduate School of Engineering（7-1-2, Yoto, Utsunomiya-shi, Tochigi 321-8585, Japan）
  • KAWATO Takaya
    UTSUNOMIYA UNIVERSITY, Graduate School of Engineering（7-1-2, Yoto, Utsunomiya-shi, Tochigi 321-8585, Japan）

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Other Title
  • 環境負荷低減コンクリートの諸物性の改善に関する研究

Abstract

<p>In this paper, we explain the improvement about environment load reduce type high strength concrete using large amount of ground granulated blast-furnace slag and fly ash as the main reactive material. And we tried to improve about harden concrete properties such as compressive strength and freezing and thawing resistance, and fresh properties such as fluidity by some experiments. Then, we could improve the property of freezing and thawing resistance, by using both deforming agent for decreasing entrapped air content ratio, and AE agent for increase entrained air, and air content volume ratio up to about 6％. And we found method to control the property of dilatancy of fresh concrete by adjusting particle size distribution of combination using all powder materials.</p>

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