| 摘要 |
<p>Gypsum paste composition comprises gypsum, water and starch. The starch has a Brookfield viscosity of less than 60 cps at less than 60[deg]C and a Brookfield viscosity of greater than 10000 cps at 70[deg]C. Independent claims are included for: (1) a gypsum board comprising a core made of the gypsum paste; and (2) a process of preparing the gypsum board comprising a gypsum core and at least one covering comprising preparing the composition using a mixer, depositing the prepared paste on the covering, followed by a ribbon forming with optional coating of the upper side of the paste with a second covering, optionally forming the edges of the ribbon of the board obtained earlier by casting of ribbon on the profiled strip, setting gypsum hydraulic on fabrication line while the gypsum ribbon moves on a treadmill, cutting the ribbon at the end of line, along the determined lengths, and drying the obtained boards.</p> |
