| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for easily producing a charcoal-powder-mixed concrete by limiting the mixing ratio of cement and a charcoal powder within a certain range in producing a charcoal-powder-mixed concrete or by using shirasu instead of sand as aggregate in producing a charcoal-powder-mixed concrete. <P>SOLUTION: In the process for producing a charcoal-powder-mixed concrete, the mixing ratio of cement is 50 to 60 vol. %, and the mixing ratio of a charcoal powder is 5 to 15 vol. %. In producing a charcoal-powder-mixed concrete, the concrete is produced by mixing 50 to 60 vol.% cement with 5 to 15 vol.% charcoal powder and shirasu as a substitute for sand as aggregate. In producing a charcoal-powder-mixed concrete, the concrete is produced by mixing 70 vol.% cement with 5 vol.% charcoal powder, 20 vol.% gravel, and 5 vol% shirasu. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
