MANUFACTURING METHOD OF FOAM HYDROTHERMALLY-SOLIDIFIED BODY USING INCINERATION ASH AS MAIN RAW MATERIAL AND FOAM HYDROTHERMALLY-SOLIDIFIED BODY

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive manufacturing method of a foam hydrothermally-solidified body having even water permeability together with strength and aggregate performance, and also using incineration ash as a main raw material, and the foam hydrothermally-solidified body manufactured by the manufacturing method.SOLUTION: The manufacturing method of a foam hydrothermally-solidified body of the present invention, includes the following processes (a)-(c): (a) a mixing process of mixing by adding cement by 5-25 mass% to 100 mass% of incineration ash including amphoteric metal, (b) a kneading process of providing a kneaded object of a funicular state by hydrating calcium oxide included in the incineration ash and the cement by inputting kneading water into a mixture of the incineration ash and the cement and kneading the mixture after the mixing process, and (c) a curing process of providing the foam hydrothermally-solidified body by generating and foaming gas by reacting the amphoteric metal included in the incineration ash and alkaline water after transferring the kneaded object of the mixture of the incineration ash and the cement and the kneading water to a molding form and hydrothermally solidifying it while adding predetermined compressive force following the kneading process.