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전기로 산화슬래그 골재를 사용한 콘크리트의 성능 평가에 관한 연구Study on Performance Evaluation of Concrete Using Electric Arc Furnace Oxidizing Slag Aggregate

Other Titles
Study on Performance Evaluation of Concrete Using Electric Arc Furnace Oxidizing Slag Aggregate
Authors
임희섭이한승
Issue Date
Aug-2017
Publisher
한국구조물진단유지관리공학회
Keywords
전기로 산화슬래그; 콘크리트; 압축강도; XRD; β-C2S; Electric arc furnace oxidizing slag; Concrete; Compressive strength; XRD; β-C2S
Citation
한국구조물진단유지관리공학회 논문집, v.21, no.4, pp 97 - 103
Pages
7
Indexed
KCI
Journal Title
한국구조물진단유지관리공학회 논문집
Volume
21
Number
4
Start Page
97
End Page
103
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/11087
DOI
10.11112/jksmi.2017.21.4.097
ISSN
2234-6937
2287-6979
Abstract
본 논문은 전기로 산화슬래그 골재를 사용하여 콘크리트를 제작하여 물리적 성능을 평가하였다. 실험은 전기로 산화슬래그 골재를 치환하여(잔골재-굵은골재) 0%-0%, 0%-100%, 50%-100%, 100%-100%으로 각 4수준으로 일반강도영역 W/C 45%와 고강도영역인 W/C 30%의 2수준으로 제작하여 진행하였다. 굳지 않은 콘크리트에서는 공기량, 플로우 및 슬럼프, 단위용적질량 실험을 진행하였으며, 경화 콘크리트에서는 압축강도 및 휨강도, 단위용적질량 실험을 통하여 물리적 특성을 검토하였다. 본 연구의 실험결과 전기로 산화슬래그의 혼입량이 증가함에 따라 콘크리트의 강도 증진 효과가 나타났으며, 이는 전기로 산화슬래그 골재 내에 β-C2S로 인하여 골재 내외부에서 강도 증진 효과를 발휘한 것으로 사료된다.
As the shortage of concrete aggregates is intensifying, the development of alternative resources is urgent. As the amount of steel slag increases year by year, attempts are being made to recycle slag into high-value-added products in order to develop an efficient resource recycling industry based on slag and to obtain economic benefits. However, the use of electric arc furnace oxidizing slag (EOS) as building materials is practically limited because it contains unstable materials. In this paper, physical properties of concrete were evaluated by using electric arc furnace slag aggregate. It has been produced with two levels of general strength area W / C 45% and high strength area W / C 30%. Fresh concrete has been tested in air content, flow and slump, unit weight. The properties of the cured concrete were investigated by compressive strength, bending strength and unit volume weight. As a result of this study, strength of concrete increased with increasing EOS aggregate mixture.
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