METHOD FOR MAKING BUILDING ELEMENTS

摘要

The invention concerns a method for making a building element based on gypsum plaster, which consists in introducing a mixture of gypsum plaster, granular filler and water in a mould (10) with rigid and shape-retaining walls (12, 14, 16), compressing said mixture in the mould at a pressure not less than a threshold value as from which the gypsum plaster is prevented from being crystallised by increasing its water-solubility, then in causing it to be rapidly crystallised by decreasing or stopping the compression of the mixture.