| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-quality steel slag hydration solidified body enabling short-time aging treatment, and generating no crack caused by expansion even when being used for a long period, and to provide a method for manufacturing the same. <P>SOLUTION: A simple body of steel slag subjected to a steam aging treatment under a steam atmosphere with a pressure of 0.2-1.0 MPa and having a particle size of <5 mm, or a material obtained by adding optionally an admixture and an alkaline stimulus material to the total amount of a mixture comprising a 40-60 mass% mixture of the steel slag and blast furnace slag having a particle size of <5 mm as fine aggregate, 20-40 mass% steel slag subjected to an aging treatment under a steam atmosphere with a pressure of 0.2-1.0 MPa and having a particle size of ≥5 mm to <40 mm as coarse aggregate, and a 10-30 mass% solidification assistant, is input into a block having a prescribed size and cured, to be thereby molded and solidified. A short-time aging treatment becomes possible, and a high-quality steel slag hydration solidified body generating no crack caused by expansion even when being used for a long period can be obtained. <P>COPYRIGHT: (C)2013,JPO&INPIT |
