Preparation of Activated Alumina Admixture
Through calcining bauxite, the preparation of active alumina (Al2O3) admixture was investigated. The effect of calcination temperature and time on the activity of alumina was studied. Calcination production species and crystalline state were determined by X-ray diffractometer, and the specific surface area referred as an important parameter was also determined. The results showed that the best calcination process of acquiring activated alumina admixture was 500°C1.0h. Alkali-aggregate reaction was inhibited effectively by the active alumina admixture.
Aimin Yang, Jingguo Qu and Xilong Qu
X. Y. Wang et al., "Preparation of Activated Alumina Admixture", Applied Mechanics and Materials, Vols. 84-85, pp. 489-493, 2011