| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight plaster board excellent in earthquake protection of high-rise apartment buildings, construction work efficiency, fire-safety and acoustic absorption, by devising weight reduction, to solve a problem of conventional plaster boards not so lightweight generally, and not so good in earthquake protection of high-rise apartment buildings, construction work efficiency, and transportation efficiency by truck or the like. SOLUTION: Weight reduction of the plaster board is achieved by mixing pearlite into the plaster board while maintaining hitherto established quality, and thereby, transportation efficiency, fireproofness, quakeproofness and work efficiency are greatly improved. COPYRIGHT: (C)2009,JPO&INPIT
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