SEGREGATION RESISTANCE AND PASSING ABILITY OF HIGH FLUIDITY CONCRETE WITH LOW POWDER CONTENT

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  • 低粉体系高流動コンクリートの材料分離抵抗性および間隙通過性
  • Consideration on high fluidity concrete with slump flow of 45cm
  • スランプフロー45cmの高流動コンクリートに対する検討

Abstract

<p>Segregation resistance and passing ability of high fluidity concrete with slump flow of 45 cm were investigated. The following findings were obtained as the results. (1) The Filling ability with passing between rebars is estimated by PJ value of the J-ring test. (2) The segregation resistance while passing between rebars is not matter too much. (3) The degree of settling of coarse aggregate is estimated by the ratio of coarse aggregate content in chamber B of the box-type filling test with vibration. Moreover, significant that due to excess compaction is estimated by visual examination of the slump flow.</p>

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