Castable refractory and method of manufacturing castable refractory

摘要

PROBLEM TO BE SOLVED: To provide a castable refractory that contains used blast furnace trough slag line materials and can be applied without increasing the water-carrying capacity.SOLUTION: A castable refractory contains used blast furnace trough slag line materials with a particle size of 2 mm or less of 10 mass% or more and 50 mass% or less, and contains at least one of easily-sinterable alumina and temporarily-sintered alumina of 8 mass% or more and 25 mass% or less with a particle size of 20 μm or less.SELECTED DRAWING: Figure 1