논문 상세보기

수열조건에 의한 전기로산화슬래그 골재의 체적안정성 평가 KCI 등재

Evaluation on Volume Stability of the Electric Arc Furnace Oxidizing Slag Aggregate by Hydro Thermal Condition

  • 언어KOR
  • URLhttps://db.koreascholar.com/Article/Detail/242401
서비스가 종료되어 열람이 제한될 수 있습니다.
한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

Replacement aggregate source like as electric arc furnace slag will be important more and more in the domestic construction field. Recently KS F 4715 was revised in order to utilize electric arc furnace slag as concrete aggregate. However, stability for an actual structure has not been confirmed sufficiently. Therefore, more careful attention should be paid on the quality management of slag aggregate. To evaluate the volume stability of electric arc furnace slag, a method of immersion expansion for evaluating road aggregate has been used. These conventional method needs long time, so there are many demands from industry for fast testing method. This paper is intended to evaluate whether the acceleration test method in the hydro thermal condition is proper or not, and find the correlations between the volume expansion and oxide compounds of slag aggregate. The test results indicates that the acceleration test method has sufficient possibility as a way of evaluating the safety of electric arc furnace slag, and that there is no correlations between the volume expansion of mortar bar with slag aggregate and the oxide compositions of slag aggregate, but the main cause of the pop-out phenomenon is the MgO content of slag aggregate.

저자
  • 김진만(공주대학교 건축학부) | Jin-Man Kim
  • 박헌일(한국건설생활환경시험연구원) | Hun-Il Park Corresponding author