Abstract
This research provides a comparison of ALAs which was made up of two different raw materials, that is, MDFA and MDBA which were produced from fluidized bed type boiler of power plant and then magnetically separated. ALAs made up of MDFA had too much liquid phase at high temperature; on the other hand, those made up of MDBA showed a black core region as well as good distribution of various sizes of pores inside ALA. Although a good quality of ALA can be made of MDBA only, the optimum composition was obtained under the conditions of MDBA:DS=5:5 and at 1200°C. Nonetheless for its high sintering temperature, MDBA is a prospective recycling material for making lightweight aggregate.
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