High alumina low cement castables are developed on the ground of clay castable refractories, using calcined high-alumina bauxite as aggregate, pure calcium aluminate cement and clay as bonding agent, calcined high-alumina bauxite fines as admixed materials, and adding SiO₂ micro-powder.

　　High alumina low cement castables have the outstanding characteristics of high density, high refractoriness, good slag corrosion resistance, high temperature strength. etc.

　　High alumina low cement castables as one of the most widely used monolithic refractories are mainly used various industrial furnaces and kilns linings, such as reheating furnace, heat-treating furnace, EAF roof, shaft kiln, rotary kiln, iron runner of blast furnace, steel ladle and hot metal ladle, etc.