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http://dx.doi.org/10.6111/JKCGCT.2011.21.3.129

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

Choi, Yun-Jae (Department of the Materials Engineering, Kyonggi University)
Kim, Yoo-Taek (Department of the Materials Engineering, Kyonggi University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.21, no.3, 2011 , pp. 129-135 More about this Journal
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/$cm^3$ were produced at $1150{\sim}1200^{\circ}C$.
Keywords
Artificial lightweight aggregates; Bloating; EAF dust; Kerosene; Ferrous materials;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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