대한건축학회논문집:구조계 (Journal of the Architectural Institute of Korea Structure & Construction)

  • 제28권8호
  • /
  • Pages.95-102
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  • 2012
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  • 1226-9107(pISSN)
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  • 2384-1788(eISSN)
대한건축학회 (Architectural Institute of Korea)
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폐 LCD유리 미분말을 이용한 콘크리트의 활용가능성에 관한 연구

A Study on the Possibility of Concrete Using Waste LCD Glass Powder

  • 윤승조 (한국교통대학교 건축공학과) ;
  • 박정민 (충주대학교 건축공학과)
  • 투고 : 2012.02.02
  • 발행 : 2012.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

A recent study found that the glass may show pozzolanic reaction during the hydration reaction of cement, and thus improve the physical features of hardened concrete and the rheological features of not fully hardened cement, effectively reducing bleeding and hydration heat. This study aimed at finding out whether or not waste LCD glass powder could be used as an admixture for concrete through assessing the qualities of the powder as an admixture for concrete. To this end, the study compared concrete containing waste LCD glass powder an admixture including the fluidity of not hardened concrete, the strength of hardened concrete, the possibility of showing pozzolanic reaction, change in the length of hardened concrete. According to the results of an experiment, the workability of not fully hardened concrete containing waste LCD glass powder was better than that of concrete containing Plain when the proportion of waste LCD glass powder replaced was around 20 percent. The value for the amount of air in the concrete met the KS regulation. In addition, the cement bleeding and bleeding rate increased as the proportion of waste LCD glass powder replaced rose. With regard to the strength of hardened concrete, concrete containing waste LCD glass powder displayed similar or better strength than concrete containing plain when the proportion of waste LCD glass powder replaced was between 5 and 15 percent. Furthermore, concrete containing waste LCD glass powder showed less change in length than concrete containing plain when it was dried. Therefore, it is thought that if waste LCD glass powder is grinded as finely as cement or admixtures currently being used, it can be used as an admixture for concrete.

키워드

과제정보

연구 과제 주관 기관 : 한국교통대학교

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