• 제목/요약/키워드: Clinker

검색결과 274건 처리시간 0.023초

Synthesis of Alinite-Calciumchloroaluminate System Cement Using Solid State Waste

  • Cho, Jin-Sang;Han, Gi-Chun;Kim, Hyung-Seok;Ahn, Ji-Whan;Kim, Hwan;Lee, Hyoung-Ho
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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    • pp.581-585
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    • 2001
  • Alinite-Calciumchloroaluminate system clinker was synthesized from solid state waste. The raw materials were municipal incineration ash, sewage sludge, limestone and clay. ecocement was prepared by the mixing of synthesized clinker and optimum amount of gypsum and its hydrolysis characteristic was investigated. X-ray diffraction, conduction calorimeter and reflecting microscope were used to analyze structural and physical properties. The main phase of clinker were alinite, calcium chloroaluminate. $C_2$S, $C_3$S. From the results of hardening time, hydration reactivity of synthesized all samples was faster than that of ordinary portland cement.

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특수시멘트 고화재를 이용한 지정폐기물의 고형화/안정화(I) (solidification/Stabilization of Hazardous Wasted Using Cementitious Material(I))

  • 임채용;백상현;엄태선;최롱;오병;이경훈
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2000년도 봄 학술발표회 논문집
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    • pp.205-210
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    • 2000
  • This study concerns the cement-solidification. stabilization of the electric furnace dust. Compressive strength and leaching test of heavy metals were evaluated for varing types and ratios of cements and the effect of some additives of hauyne clinker and slag were also discussed. In this cases of using cement binders more than 30%, the compressive strength showed the values over 150kgf/cm2. so it can be used as filler for concrete precastings. Type III cement and Hauyne clinker improved the compressive strength, especially early strength. Leaching amount of heavy metals was decreased when using type III cement and adding hauyne clinker and slag. The values were especially low in the case of slag addition.

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특수시멘트 고형화재를 이용한 지정폐기물의 고형화/안정화(II) (Solidification/Stabilization of Hazardous Wastes Using Cementitious Materials(II))

  • 엄태선;임채용;최롱;박근배;오병환
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2000년도 가을 학술발표회 논문집(II)
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    • pp.1199-1204
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    • 2000
  • This study concerns the cement-solidification/stabilization of the municipal waste incineration fly-ash. Compressive strength and leaching test of heavy metals were evaluated for varying types and ratios of cements and the effects of some additives of Hauyne clinker and slag were also discussed. In the cases of using cement binders more than 10%, the compressive strength after 3 days showed the values over $20kgf/cm^2$. Type III cement and Hauyne clinker improved the compressive strength, especially early strength. And the values of leaching test showed that cement-solidification is effective method to stabilize heavy metals especialy when using type III cement and adding Hauyne clinker and slag,.

$C_3S-C_3A-C_4AF$계의 초기수화특성(I) : 클링커 조성변동의 영향 (The Early Hydration Characteristics of the System $C_3S-C_3A-C_4AF$(I) : Effect of Clinker Composition Variations)

  • 신규연;한기성
    • 한국세라믹학회지
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    • 제27권8호
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    • pp.1055-1063
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    • 1990
  • The early hydration characteristics of the system $C_3S-C_3A-C_4AF$ according to the clinker composition variations, in order to establish the mutual interactionof clinker minerals during the portland cement hydration, have been studied. The early hydration rate of $C_3S$ was greatly effected by the change of $C_3S/C_3A$ ratio. The lower the $C_3S/C_3A$ ratio was, the faster the apex reaching time and the rate of heat liberation of the 2nd exothermic peak originating from the formation of $Ca(OH)_2$ were. The effect of $C_3S/C_3A$ ration on the amounts of $Ca(OH)_2$ formation was decreased, in process of hydration time, but the effect of $C_3S$ content was increased.

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