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http://dx.doi.org/10.7844/kirr.2017.26.1.11

Characterization of Wood Chip Ash Generated from a Power Plant  

Bang, Jung Won (Korea Institute of Ceramic Engineering and Technology)
Kim, Soo-Ryong (Korea Institute of Ceramic Engineering and Technology)
Kim, Younghee (Korea Institute of Ceramic Engineering and Technology)
Kim, Mido (Korea District Heating Corporation)
Kang, Won-Seok (Korea District Heating Corporation)
Cho, Kye-Hong (Korea Institute of Limestone and Advanced Materials)
Kwon, Woo-Teck (Korea Institute of Ceramic Engineering and Technology)
Publication Information
Resources Recycling / v.26, no.1, 2017 , pp. 11-15 More about this Journal
Abstract
The amount of the wood chip ash is expected to increase continuously as demand of wood chip-based heat and electricity increase. Thus, there is increased interest in wood chip ash utilization. In this study, as a program of utilization in wood chip ash, the physical and chemical properties of wood chip ashes generated from a combined heat and power plant were investigated. The chemical analysis showed that the main contents of wood chip ash are composed of silica, alumina and alkali. A possibility of reuse as secondary cementitious materials was investigated by the analysis of strength activity index, and compared with coal ash. The highest value for Strength activity index of wood chip fly ash was 78% at 90 days curing time. This result revealed that wood chip fly ash has the potential to be utilized as the admixture for cementitious material.
Keywords
wood chip; fly ash; bottom ash; strength activity Index;
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