Study on the Activity of Metakaolin Produced by Traditional Rotary Kiln in China
نویسندگان
چکیده
This paper analyzed the activity of coal-based metakaolin and non-coal-based (ordinary metakaolin) commonly used in Chinese market. The content kaolin was detected by XPF. phases kaolin, corresponding alkali-excited reactants were XRD. contents Al (IV), (V) (VI) 27Al NMR. micromorphology observed SEM. water-resistance alkali-activated tested immersion experiment. results showed that a lot corundum quartz present metakaolin, which caused over calcination. Furthermore, large amounts sillimanite, cristobalite existed ordinary with low amorphous aluminum silicate, excessive impurities raw materials These crystalline substances could not react an alkali solution, their existence reduced two metakaolins. Both production methods need to be improved increase activity.
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12030365