| 摘要 |
<p>PROBLEM TO BE SOLVED: To mold a structural material capable of readily driving a nail thereunto in the same manner as that of wood without easily drawing out the nail. SOLUTION: This structural material is molded by using a material 10 for molding prepared by kneading a cement with water, one or plural kinds of a soft extender of a granular material and/or a powder selected from a pulverized chaff, a ceramic charcoal, a clinker and the like which are lightweight and soft and used as a compounding material for the cement and a fibrous reinforcing material and further using wood and/or a thin-wall copper plate as an internal material and/or a surface material.</p> |
