| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide heavyweight concrete which is inexpensive, can be obtained without essentially controlling the particle size of aggregate, and is almost free from the problem of the separation of materials. <P>SOLUTION: The heavyweight concrete is obtained by adding aggregate to cement, and a portion or whole of fine aggregate in the aggregate is granular pig iron separated from granulated blast furnace slag. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
