| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide concrete blended with a crushed shell material whose superior workability is assured and whose strength is satisfied even if the ratio of the substitution by the crushed shell material is more than 30 vol%. <P>SOLUTION: The crushed shell material having a particle distribution shown in the table is used as a part of or the whole of fine aggregate, and blast furnace cement is used as cement. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
