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해양구조물 제조를 위한 제강슬래그 골재 조합별 물성평가 및 콘크리트 개발( I )

Development of Concrete and Evaluation of Properties of Combined Steel making Slag Aggregates for Offshore Structure Production (I)

  • 정원경 ((주)한국건설품질시험연구원) ;
  • 황윤석 ((주)한국건설품질시험연구원) ;
  • 박동천 (한국해양대학교) ;
  • 조봉석 ((재)포항산업과학연구원)
  • Jung, Won-Kyong (Department of Research Center, Korea Construction Quality Test Institute) ;
  • Hwang, Yun-Seok (Department of Research Center, Korea Construction Quality Test Institute) ;
  • Park, Dong-Cheon (Korea Maritime and Ocean University) ;
  • Cho, Bong-Suk (Research Institute of Industrial Science & Technology)
  • 투고 : 2016.01.19
  • 심사 : 2016.03.07
  • 발행 : 2016.04.30

초록

제강슬래그는 제강과정에서 필연적으로 발생되는 산업부산물로 토목용, 돌용 및 시멘트 원료 등으로 재활용되고 있다. 그러나 재활용분야가 대부분 저부가가치 분야에 집중되어 제강슬래그의 장점을 활용한 다양한 분야로의 활용이 요구되고 있는 실정이다. 제강슬래그를 콘크리트용 골재로 활용하기 위한 다양한 연구가 있었으나 한정적인 제강슬래그에 대해 이루어졌으며 대부분의 연구가 팽창성 억제에 관한 것으로 실질적인 콘크리트용 골재로써의 적합성에 대한 연구는 미비한 실정이다. 본 연구에서는 생산방식에 따라 제강슬래그 골재를 구분하여 총 7종을 통한 골재간 조합을 통해 콘크리트용 골재로 활용가능성을 평가하였다. 연구결과, 제강슬래그 골재를 일반 콘크리트용 골재와 동등하게 활용하기에는 입도, 염화물함량 등의 기준에 부족한 것으로 나타났으나 적절한 골재조합을 통해 특수분야에 한하여 콘크리트용 골재로는 그 활용성이 매우 높은 것으로 평가되었다.

Steel slag is being recycled into industrial by-products for civil generated inevitably in the seasonal course, road and cement raw materials. However, the field of recycling most of the bottom portion is concentrated in the areas that are required to take advantage of the situation in various fields taking advantage of the steel slag. But various studies to take advantage of the steel slag as aggregate for concrete made for limiting slag was a situation that most of the studies are incomplete research on the suitability of as aggregate for concrete practical relates to an expandable suppressed. In this study, the separation of the slag aggregate according to the production methods to assess the feasibility aggregate for concrete aggregates, including through Steel making slag, a total of seven kinds of steel slag aggregate. Studies show that ordinary concrete, steel slag aggregate for aggregate and on the equally to take advantage of grading, chloride content standards such as to what is lacking, although appropriate aggregate of concrete include the deployment of only in special sectors through the combination was assessed to have a very high.

키워드

참고문헌

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