• Title/Summary/Keyword: Flowing Lightweight Aggregate concrete

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An Experimental Study on the Strength Properties of Flowing Lightweight Aggregate Concrete with Age (재령에 따른 고유동 경량골재콘크리트의 강도특성에 관한 실험적 연구)

  • Jeon, Hyun-Kyu;Yoo, Taek-Dong;Seo, Chee-Ho
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.2 no.4
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    • pp.186-193
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    • 1998
  • The purpose of this research is to seek properties of flowing light-weight aggregate concrete and possibility of application. The experimental analysis results by using light-weight aggregate and industrial waste such flyash, furnace slag are as follow. 1) The research shows that flowing light-weight aggregate concrete of slump 23~27cm, slump flow 58~69 cm is possible, but material segregation is appeared above slump 26.5cm and slump flow 65 cm. 2) If mixing ratio of flyash is increase, strength deterioration is about 25 % in early age. It showed that effectiveness of long time strength improvement because strength manifestation ratio is above 95% in a long term. 3) This research showed possibility of substitution of blast furnace slag because strength deterioration by using mixing of furnace slag was appeared small deterioration range as below 10 %. 4) Each experimental compressive strength ratios were 77 %(1st week), 86 %(2nd week), 109 %(8th week), 115 %(13th week), 125 % (26th week) on the basis of 28 days. If mixing ratio of flyash is increase, long term strength increase ratio is improved.

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