| 摘要 |
<p>The invention relates to a process for manufacturing some construction elements based on plaster, consisting in placing at least the plaster and the water into a mould (10), shaped as the element to be obtained, applying a pressure onto the mixture, reducing the pressure applied onto the mixture, removing the construction element and leaving the same to crystallize, wherein the water quantity in the mixture is equal to the double of the water quantity necessary for crystallizing the plaster at the atmospheric pressure and the pressure apllied onto the mixture is equal to at least one limit value, over which the plaster crystallization is hindered.</p> |
