Effect of EAF dust on the formation of ultra lightweight aggregates by using bottom ash and dredged soil from coal power plant (인공경량골재의 EAF dust 첨가에 따른 초경량화에 관한 연구 최윤재, 김유택)

최윤재; Yooteak Kim (김유택)

Effect of EAF dust on the formation of ultra lightweight aggregates by using bottom ash and dredged soil from coal power plant

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2011, 21(3), pp.129-135
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

최윤재 ¹, Yooteak Kim ¹

¹경기대학교

Accredited

ABSTRACT

EAF dust from steel industry used as primary materials for the production of lightweight aggregates. Fe compounds in EAF dust plays an important role in the bloating reaction. This study was conducted to evaluate the feasibility of using bottom ash and dredged soil from coal power plant and EAF dust. The effect of different raw material compositions and sintering temperatures on the lightweight aggregate properties were evaluated. The characteristic of thermal bloating of bottom ash and dredged soil were mainly influenced by ferrous materials. The specific gravity of aggregate was decreased with the addition of EAF dust and kerosene was reduced sintering temperature on the bloating formation. Lightweight aggregate containing 10 % EAF dust having apparent density under 1.0 g/cm 3were produced at 1150~1200oC.

KEYWORDS

Artificial lightweight aggregates, Bloating, EAF dust, Kerosene, Ferrous materials

Citation status

* References for papers published after 2023 are currently being built.

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19