High-performance modern activated alumina in the batching of refractory materials can offer the following benefits: increased green density, fluidity, and strength, as well as enhanced generation of secondary mullite, while reducing water content and porosity. Moreover, the activated alumina can also serve as an adsorbent and desiccant, with a high water absorption capacity, rapid drying speed, and the ability to regenerate (400-500K roasting), as well as being non-swelling, non-cracking, and non-deforming upon water absorption.