Optimization of Slag Content and Properties ..
2.1. Starting Materials. Kaolin was supplied from general company for ceramic porcelain products Sheeni Egypt. Metakaolin MK was prepared by calcination of kaolin at 850 o C for 3 hours in a furnace with heating rate of 5 o C/min then milled in planetary ball mill for 30 min to produce MK powder having Blaine specific surface area of 2 120 m 2 /kg and specific gravity
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