| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a production method for a cement hardened body which is excellent in fluidity retention performance and has an enhance compressive strength particularly by autoclave curing at a predetermined temperature, and also to provide the cement hardened body. <P>SOLUTION: This cement hardened body production method comprises kneading a cement concrete composition including an air-cooled blast furnace slag powder and water to prepare a cement concrete, forming, and then autoclave curing. The production method is characterized in that the air-cooled blast furnace slag powder includes 0.5% or more of sulfur existing as a non- sulfate one, and in that the autoclave curing is performed at a temperature of 150-220°C. The cement hardened body produced by the above method is also provided. <P>COPYRIGHT: (C)2003,JPO</p> |
