| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a concrete composition with a small slump loss, in spite of including an aggregate including a smectite mineral. <P>SOLUTION: The concrete composition includes a cement, an aggregate including a smectite mineral, a high performance AE water reducing agent, and a super-retarder, and its initial slump is 8-18 cm. <P>COPYRIGHT: (C)2013,JPO&INPIT |
