| 摘要 |
PROBLEM TO BE SOLVED: To provide a processed solid matter constituted so as to be heated and solidified at comparatively low temperature, of which the cost reduction is achieved, which reliably seals a radioactive material, is excellent in functions such as heat resistance, chemical resistance, and has durability with extremely less secular change.SOLUTION: A method for processing burned ash includes: a mixture step (1) of mixing powder of shirasu balloon, powder of a brick raw material with the burned ash to obtain a mixture; a molding step (2) of adding water to the mixture to be molded to a molding in the predetermined shape; a heating step (3) of firing the molding obtained in the molding step, and heating the mixture to be melted or half-melted; and a cooling step (4) of then cooling the molding to be made into a processed solid matter. |
