スラグ材の製造方法

Japanese Patent JP6900923

B2

To provide a manufacturing method of a slag material capable of producing the slag material in which the hydration expansion can be suppressed by using a slag having a high hydration expansion risk or a slag having a low hydration expansion risk.SOLUTION: A manufacturing of a slag material includes: an air granulation step in which a molten steelmaking slag is turned into droplets having a diameter of 10 mm or less for scattering, a solidification step in which the scattered steelmaking slag is solidified to form solidified slag, and a crushing step in which the solidified slag obtained in the solidification step is crushed into the slag material, and the composition of the steelmaking slag can satisfy the following formula(1): 5