| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a product yield of an aggregate produced from waste so as to enlarge the application range thereof and to contribute to the settlement of waste problems by the re-use of a waste. <P>SOLUTION: A raw material is surface-treated using an oxidizing agent, proton charge is applied to the raw material surface for chemical activation, and then a colorant is added, followed by the treatment at a predetermined temperature for heating for a predetermined time for heating. Thus, on the raw material surface, reactive proton charge reacts with a functional group [<SP>-</SP>O-H] of the colorant to give a strong ether linkage [-O-]. At this time, the raw material is firmly colored so that it becomes less susceptible to fading and the degree of freedom for coloring is enlarged. Thus, a product yield for an aggregate produced from waste can be improved and the application range thereof can be expanded. Furthermore, the invention can contribute to the settlement of waste problems by the re-use of a waste. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
