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Preparation of Multi-functional Brick Using MSWI Fly Ash  

Ban, Hyo-Jin (Construction Environment Research Division, Korea Institute of Construction Technology)
Park, Eun-Zoo (Department of Environmental Engineering, Kangwon National University)
Lee, Woo-Keun (Department of Environmental Engineering, Kangwon National University)
Publication Information
Abstract
With the advance of industrialization and urbanization, a lot of waste has been discharged and treated by incineration. But fly and bottom ashes are generated in this process. In addition, the treatment method to recycle sewage sludge and melting slag is required to manage these wastes. The objective of this research was to prepare of multi-functional brick which were made from MSWI (Municipal solid wastes incinerator) fly ash, sewage sludge and slag. The bricks were made by mixing raw materials and then drying for 24 hours. Next, they were dried for 24 hours at $160^{\circ}C$ and fired for 2 hours. Calcination temperature was changed to discuss the effect of temperature from $1,080^{\circ}C$ to $1,130^{\circ}C$. Compressive strength of a brick was creased with the increase of temperature. To increase mixing ratio of fly ash and slag reduce the compressive strength the optimal condition was the mixing ratio of fly ash : melting slag : sewage sludge : clay as 10 : 20 : 5 : 65 and $1,150^{\circ}C$ of calcination temperature. Compressive strength was obtained as about 41 MPa at this condition.
Keywords
MSWI Fly Ash; Multi-functional Brick; Incineration; Sewage Sludge; Slag;
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Times Cited By KSCI : 2  (Citation Analysis)
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