Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Strength Properties of Non-cement Matrix by Using Recycled Aggregates and Sludge from Ready-Mixed Concrete

레미콘의 슬러지 고형분과 회수골재를 사용한 무시멘트 경화체의 강도특성

  • Ryu, Dong-Woo (Department of Architectural Engineering, Daejin University)
  • 류동우 (대진대학교 건축공학과)
  • Received : 2016.12.05
  • Accepted : 2016.12.13
  • Published : 2016.12.30
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Abstract

This study investigates the expressions characteristics of compression strength depending on the condition of fresh concrete and cured concrete by producing Non-cement mortar and concrete only with solidified sludge in the dehydrated cake form, recycled concrete and premixed materials(BS, FA) in order to actively use remicon recycling water as resources, rather than as construction waste material. After treating wastewater of pH 12.5 or more with alkali activator and after promoting BS hydration reaction, the amount of BS inflow was found to be increased and compression strength was increased accordingly: these results coincide with the analysis results of TG-DTA and SEM.

본 연구에서는 레미콘 회수수를 건설폐기물이 아닌 자원으로서 적극 활용하고자 탈수케이크상의 슬러지 고형분과 회수골재, 혼화재료(BS, FA)만을 사용한 무시멘트 모르타르 및 콘크리트를 제작하여 재령 및 양생조건에 따른 압축강도 발현특성을 검토하였다. pH 12.5 이상의 상징수가 알칼리자극제로 작용하여 BS의 수화를 촉진한 결과 BS의 혼입량이 증가함에 따라 압축강도는 증가하였으며, TG-DTA, SEM 등의 분석결과와도 일치하였다.

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References

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