한국건축시공학회지 (Journal of the Korea Institute of Building Construction)

  • 제20권2호
  • /
  • Pages.113-121
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  • 2020
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  • 1598-2033(pISSN)
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  • 2233-5706(eISSN)
한국건축시공학회 (The Korean Institute of Building Construction)
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천연유기석회 및 고토석회를 조합한 흙 포장 콘크리트용 경화재의 최적배합안 도출

Suggesting Optimum Mix Proportion of Hardener for Soil-pavement Concrete Incorporating Natural Organic Lime and Magnesia-lime

  • Han, Min-Cheol (Department of Architectural Engineering, Cheong ju University) ;
  • Han, Jun-Hui (Department of Architectural Engineering, Cheong ju University)
  • 투고 : 2019.09.26
  • 심사 : 2020.02.15
  • 발행 : 2020.04.20
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초록

본 연구는 국내에서 시공된 많은 수의 흙 포장 콘크리트의 경우는 강도저하, 내구성 저하 등이 문제점으로 제기된다. 따라서 본연구는 이를 해결하기 위하여 석회류 재료인 천연유기 석회와 고토석회 등의 폐기물을 활용하여 흙 포장 콘크리트의 경제성, 품질향상을 목적으로 흙 콘크리트의 경화재를 개발하고자 하였다. 즉, 석회류 재료를 고로슬래그 미분말과 조합하여 자극재로 사용하여, 기존의 경화재의 재료를 대체하여 천연유기석회(H), 고토석회(G)의 석회류 조합비를 0: 10~10 : 0 범위에서 검토하였다. 연구결과, 모르타르 배합비 1 : 3, 결합재 조성비의 경우 BSC 30 석회류 재료조합비율은 천연유기석회와 고토석회를 5: 5의 비율로 혼합할 경우 시멘트 모르타르의 품질 측면에서 양호한 개발품이 얻어짐을 확인할 수 있었다.

Lots of soil-pavement concrete placed showed a number of problems such as decreasing strength, and durability. In this research, to provide a solution of the problem reported the wasting materials of natural organic lime and magnesia lime were used as a hardener to achieve sufficient performance of soil-pavement concrete. Namely, as a stimulus of blast furnace slag, the natural organic lime and magnesia lime were tested within the mix proportion of 0 to 10 % for each lime to make a new hardener. As a result, in the case of mortar with 1 to 3 % of cement to fine aggregate, 30 % replaced blast furnace slag showed the more favorable results with 5 to 5 % of mix proportion for natural organic lime and magnesia lime.

키워드

참고문헌

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