| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an energy saving manufacturing method by which a reaction temperature and a reaction time are remarkably decreased using a manufacturing process such as normal pressure steam curing or rapid microwave-hydrothermal curing and to provide a hardened body exhibiting mechanical strength and dimensional stability. <P>SOLUTION: The energy saving method of manufacturing a coal ash hardened body includes: forming a mixed raw material containing the coal ash, a calcareous raw material, a reinforcing fiber, water and≤8 pts.wt. sodium hydroxide expressed in terms of a solid portion per 100 pts.wt. solid portion mixture of the siliceous raw material with the calcareous raw material; pre-drying at a prescribed temperature; solidifying by the normal pressure steam curing or the microwave-hydrothermal curing; and post-drying. The reaction temperature and the reaction/drying time are remarkably reduced by using microwave drying for the pre-drying and the post-drying. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
