| 摘要 |
<p>A heat resistant, thermally insulating composition includes fibrous vegetable matter, a silicate binder, raw perlite and inorganic filler other than raw perlite, the strand length of the fibrous vegetable matter being from 5 to 100mm and the water content from 10 to 20%. The fibrous vegetable matter may be sugar cane waste. A method of preparing such a composition is described. A further heat resistant, thermally insulating composition comprises organic filler, a silicate binder, raw perlite, inorganic filler other than raw perlite and an agent capable of combining with the water released by the composition during setting thereof. The agent may be, for instance, dicalcium silicate. A method of forming a core for a panel, the core being made of heat resistant, thermally insulating material, comprises the step s of forming a pourable composition including an expanding agent, locating the composition in a suitable mold and allowing it to expand to fill the mould. The composition may be similar to those mentioned above. </p> |
