The advantage of this material is that the construction time is short because it can be constructed by machinery, making the furnace wall, the top and the bottom of the furnace a seamless block, the design is easier, especially in the furnaces with different characteristics. complex, heteromorphic structure. Cold compressive strength and post-fired strength are equivalent to or higher than that of most other conventional refractories. The application of heat-resistant concrete is used to cast large-sized structures, complex specifications and need to be filled such as: furnace walls, furnace domes, furnace doors, metal storage tanks, chemical tanks, pipes. heat-resistant, acid-resistant, heat-resistant floor, smelting and casting, compacting the working layer of industrial furnaces... The ratio of water when mixing: 10÷15 liters / 100kg of dry concrete.