| 摘要 |
A fireproof gypsum board composition is provided to having an excellent fire-resistant, to be environment-friendly, to have a secure structure, to improve fire-resistance efficiency when fire is generated and to reduce cost by using rock wool, plumbum and Muscovitum. A fireproof gypsum board composition comprises rock wool of 1~5 parts by weight, Muscovitum of 5~25 parts by weight, glass fiber of 0.1~10 parts by weight, plumbum of 3~15 parts by weight, gypsum hardener of 0.3~7 parts by weight, starch of 0.2~2 parts by weight and water of 60~100 parts by weight based on hemihydrate of 100 parts by weight. The rock wool is heat resisting fiber of which a safely used temperature is 1000‹C and has a chemical composition comprising silicon dioxide 40~46 weight%, alumina 15~20 weight%, ferric oxide 10~20 weight% and calcium oxide 20~25 weight%. An average diameter of the rock wool is 4.5~5.5mum. |
