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Effect of Bio-Sulfur Modified by Slaked Lime on Cement Hydration Properties
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소석회에 의해 개질된 바이오 황이 시멘트 수화 특성에 미치는 영향

논문 기본 정보

Type
Academic journal
Author
Woong-Geol Lee (강원대학교) Lae-Bong Han (에코바이오홀딩스) Sung-Hyun Cho (에코바이오홀딩스) Pyeong-Su Lee (에코바이오홀딩스) Myong-Shin Song (강원대학교)
Journal
한국건설순환자원학회 Journal of the Korean Recycled Construction Resources Institute Vol.11 No.4 KCI Accredited Journals
Published
2023.12
Pages
509 - 516 (8page)

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Effect of Bio-Sulfur Modified by Slaked Lime on Cement Hydration Properties
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The use of sulfur(S) in concrete has been variously studied as a way to improve salt resistance in concrete. However, sulfur is a solid material and is difficult to powder, which has disadvantages in its usability as an admixture or mixture for cement and concrete. For these problem, polymers such as dicyclopentadiene have been used to modify sulfur, but this also exists in a sticky state after modifying and does not improve the fundamental problem. So, reforming sulfur with slaked lime and the effect on cement hydration was examined by reforming sulfur with slaked lime, and the following conclusions were obtained. Depending on the reaction conditions, slaked lime modified bio-sulfur exists in a slurry state containing unreacted sulfur, unreacted slaked lime, calcium-sulfur(Ca-S) compounds and water. When slaked lime modified bio-sulfur is used as a cement mixture, salt resistance of concrete with slaked lime modified bio-sulfur is to be superior to that of plain concrete. This is believed to be because structure of cement hydrates with slaked lime modified bio-sulfur is to be more dense to that of plain cement hydrates by the continued presence of ettringite and can be used as a cement mixture in concrete.
#바이오 황 #개질 바이오 황 #유황 시멘트 #시멘트 수화 #염해저항성 #Bio-sulfur #Modified bio-sulfur #Sulfur cement #Cement hydration #Chloride attack resistibility

Contents

1. 서론
2. 실험
3. 실험 결과
4. 결론
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