Improvement of tucco properties through aging at elevated temperatures and high humidity level

The invention pertains to a method for stabilizing stucco wherein a fresh stucco is provided; water is added to the fresh stucco to obtain moistened stucco, and the moistened stucco is maintained at atemperature of at least 30 DEG C for a time interval of at least 30 minutes to obtain a stabilized s...

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Bibliographische Detailangaben
Hauptverfasser: PARASKOV GEORGI, SCHNEIDERBANGER REINER, DIETZ STEPHAN, BAIER MANFRED, FRASER THOMAS, FORTHNER SEBASTIAN, HARTMANN ALEXANDER, KARAKOUSSIS STERGIOS
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention pertains to a method for stabilizing stucco wherein a fresh stucco is provided; water is added to the fresh stucco to obtain moistened stucco, and the moistened stucco is maintained at atemperature of at least 30 DEG C for a time interval of at least 30 minutes to obtain a stabilized stucco. The process allows inter alia for an easy adjustment of the activity of the stabilized stucco, which is useful to e.g. adjust setting time of a corresponding stucco slurry. The invention further pertains to a method for producing gypsum plasterboards, wherein a stabilized stucco obtained with the above method is used. 本发明涉及一种使灰泥稳定的方法,其中-提供新鲜灰泥;-将水添加至该新鲜灰泥以获得润湿的灰泥,和-将该润湿的灰泥在至少30℃的温度下维持至少30分钟的时间间隔,以获得稳定的灰泥。该方法尤其允许容易地调节所述稳定的灰泥的活性,这对于例如调节相应的灰泥浆料的凝固时间是有用的。本发明还涉及一种生产石膏板的方法,其中使用通过上述方法获得的稳定的灰泥。