The invention relates to a high pure
corundum castable material containing nanometer
calcium carbonate and a preparation method thereof. Based on the present commonly used
corundum castable material, by adding nanometer
calcium carbonate powder as well as adopting efficient dispersant and suitable mixing technology, the invention prepares
corundum castable material that contains nanometer
calcium carbonate. The invention solves the
disadvantage of low strength of the present high pure corundum castable material in low and middle temperature, more particularly, the strength in about 800 DEG C. Furthermore, the variation of the burnt cool strength of the corundum castable material containing nanometer
calcium carbonate from 800 DEG C to 1600 DEG C is comparatively small, and the cool strength and hot strength are both higher than those of the corundum castable material containing
cement with the same content of CaO. The corundum castable material that contains nanometer
calcium carbonate and is prepared by the utility model can be widely applied to such industries fields as iron and steel, nonferrous metals, ceramics and
petrochemical etc. The invention can also be applied to fireproof materials products cast, molded and burnt by a porous
brick etc., which can greatly reduce the burnt temperature and save energy.