A Study on the Behavior of Heavy Metal Ions and Hydration of Clinker Utilizing Municipal Solid Waste Incineration Ash

생활폐기물 소각재를 이용하여 합성한 클링커의 중금속 및 수화반응 거동에 관한 연구

  • 안지환 (한국지질자원연구원 자원활용소재연구부) ;
  • 한기천 (한국지질자원연구원 자원활용소재연구부) ;
  • 한기석 (한국지질자원연구원 자원활용소재연구부)
  • Published : 2004.08.01

Abstract

The intension of this study is to produce ordinary portland cement using ash, both bottom ash and fly ash, obtained from municipal solid waste incineration ash (MSWI). We used limestone, waste molding sand, shale, slag from converting furnaces and fly ash as main raw materials and mixed them, setting the lime saturation factor (LSF) within 91.0, the silica modulus (SM) within 2.40, and iron modulus (IM) within 1.80. We conducted tests adding bottom ash alone 1, 2 and 3% by weight, respectively, and a mixture of bottom ash 0.9% and fly ash 0.1 % by weight. The result of analysis on clinker shows that the more ash is added, the lower the burnability index (B.I.) falls, lowering the mineral evolution of calcium silicate accordingly. From the measurement of compressive strength we have learned that the more ash is used, the lower the strength becomes.

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