|
Title |
Experimental Study on Behavior of Confined Concrete with Electric Arc Furnace Oxidizing Slag Aggregates
|
|
Authors |
김상우 ; 이정미 ; 이용준 ; 정유진 ; 김길희 |
|
Keywords |
전기로 산화 슬래그 골재 ; 횡 구속 콘크리트 ; 나선 철근 ; 응력-변형률 관계 electric arc furnace oxidizing slag aggregates ; confined concrete ; spiral reinforcement ; stress-strain relationship |
|
Abstract |
This paper estimates the structural performance of spirally confined concrete having electric arc furnace (EAF) oxidizing slag aggregates. The EAF oxidizing slag is a by-product generated from iron and steel industry. The EAF oxidizing slag have been largely put to low-value-added uses due to its expansive properties of the free-CaO and free-MgO. Recently, this problem has been solved by the advances in steelmaking technology and thereby stabilizing EAF oxidizing slag aggregate. To verify the application of the EAF oxidizing slag aggregate to the structural concrete usage, a total of 27 cylindrical specimens with a diameter of 150 mm and a height of 300 mm were cast and tested. The test parameters were aggregate type and spiral reinforcement yield strength. Experimental results showed that the structural performance of specimens with EAF oxidizing slag aggregates was equivalent to that of confined concrete with natural aggregates.
|