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Title |
Effect of Curing Methods on the Mechanical Properties and Durability of Blast Furnace Slag-based Geopolymer Composite Containing Ferronickel Slag Powder
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Authors |
이재인(Jae-In Lee) ; 김채영(Chae-Young Kim) ; 윤주호(Joo-Ho Yoon) ; 이호준(Ho-Jun) ; 최세진(Lee) |
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DOI |
https://doi.org/10.4334/JKCI.2024.36.4.297 |
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Keywords |
알칼리 활성 복합체, 초기 경화 조건, 페로니켈슬래그 미분말, 압축강도, 염화물이온 침투 저항성 alkali-activated composite, initial curing condition, ferronickel slag powder, compressive strength, chloride-ion penetrability |
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Abstract |
Geopolymer composites obtained from industrial byproducts are sustainable alternatives to cement concrete for use in the construction industry. In this study, ground ferronickel slag (GFS) blended ground granulated blast furnace slag (GGBFS) based geopolymer composites are manufactured, and their heat of micro-hydration, compressive strength, split-tensile strength, ultrasonic pulse velocity, chloride-ion penetrability, dry shrinkage and microstructural anaylysis are investigated according to curing methods. As a result of the analysis, in the case of compressive strength at 7 days, when the curing conditions were the same, the sample containing GFS showed a compressive strength up to about 10.8 % higher than the sample containing only GGBFS. Additionally, for samples cured at high temperatures, chloride-ion penetration resistance was noticeably improved. Under the same curing conditions, the sample containing GFS showed up to approximately 34.7 % higher chloride-ion penetration resistance than the sample using only GGBFS.
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