| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a cement composition capable of self-repairing a crack, whereas, in the cement composition, a crack is often generated on the surface by drying contraction or the like. <P>SOLUTION: In this method for manufacturing a cement composition, the cement composition is manufactured by using a cement mixture obtained by kneading cement with inputted kneading water, The kneading water is obtained by dissolving zinc or a zinc compound into strong alkali aqueous solution. The kneading water has PH of ≥12, and the cement mixture is kneaded with added aggregate. <P>COPYRIGHT: (C)2012,JPO&INPIT |
