Characteristics of Cement Matrix/Mortar with CaO-based Activated-sludge

CaO원 활성슬러지를 혼입한 시멘트 경화체 및 모르타르의 특성

  • 이용수 (한국콘크리트시험원) ;
  • 유성룡 (한국콘크리트시험원) ;
  • 신광호 (한국콘크리트시험원) ;
  • 추용식 (한국세라믹기술원 에너지환경소재본부) ;
  • 김영엽 (한양대학교 건축시스템공학과)
  • Received : 2017.05.04
  • Accepted : 2017.06.05
  • Published : 2017.08.31


CaO-based by-product, which consist of CaO, $SO_3$, $Al_2O_3$ and so on, has being used to raw materials of CaO compound. When It was applied to recycling water of remicon, concrete performance can be enhanced because hydration reaction of powder material is accelerated. In this study, activated-sludge, which was putted desulfurization gypsum of CaO-based in recycling water, was manufactured to verify effect of them, and then they was investigated by characteristics of cement matrix and mortar. As a results, they indicated reduction of setting time and high soundness in cement matrix, and acceleration of hydration reaction can be verified by XRD analysis. Also, it can be maintained good workability if water content by usage of desulfurization gypsum, which used for production of activated-sludge, was adjusted. In addition, it can be verified strength development by activated-sludge although cement content by usage of desulfurization gypsum was reduced.


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