| 摘要 |
<p>The gypsum board of high fire resistance with a gypsum core containing cut mineral fibres, preferably glass fibres, contains at least 2% by weight, preferably 5% by weight, of granulated aerated concrete. Preferably, the granulated aerated concrete has a grain size of up to 2 mm, particularly preferably up to 1 mm. The gypsum board can additionally contain up to 2% by weight of vermiculite. It can be laminated on the outside to a glass fibre mat.</p> |
