The composition of the plate of gypsum, gypsum plate, method for the preparation of a composition made of gypsum, the preparation of the composition and process for the manufacture of plaster plates contu00ecnuo

摘要

"Composition, plate of gypsum, gypsum plate, method for the preparation of a composition made of gypsum, the preparation of the composition and process for the manufacture of plates contu00ecnuo Plaster".The present invention relates to a composition of gypsum plate comprising: - 55 92% of calcium sulphate hydratable; - 0.1 to 5% of mineral fibres and / or refractory; - from 3 to 25% of a mineral additive; - 1 to 5% of vermiculite is not expanded; and 3 to 15% of alumina hydrate.The invention also relates to a method for the preparation of this composition and a process for the manufacture of sheets of gypsum. These plates have a greater resistance to gypsum burning.