| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cement composition for which an incineration ash being an industrial waste can be effective utilized, which is superior in strength development, which is used in the field of civil engineering works/buildings, especially used as various kinds of grouting materials, and its use method. <P>SOLUTION: The cement composition contains cement, the incineration ash, and an alkali-thickener type polymer emulsion. In the cement composition, 30 pts or more of the incineration ash is contained to 100 pts of the cement, and the alkali-thickener type polymer emusion is an emulsion obtainable by copolymerization of unsaturated carboxylic acids and an ethylenically unsaturated compound. A hardened body formed by using the cement composition is also provided. In the method of using the cement composition, the cement, the incineration ash and water are prelimiarily mixed to be an agent A, and the agent A is mixed with an agent B containing the alkali-thickener type polymer emulsion just before use. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
