PROCESS FOR PREPARATION OF GYPSUM BINDING AGENT

PROCESS FOR PREPARATION OF GYPSUM BINDING AGENT

A process for preparation of gypsum binding agent comprises use of half-aqueous gypsum of ?-modification obtained by preparation of gypsum raw material, partial dehydration thereof in open apparatuses connected to atmosphere at the temperature of 140...180 DEGREE C, and mixing obtained gypsum of ?-m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MYRONENKO ANATOLII VASYLIOVYCH, SHESTAKOV VOLODYMYR LEONTIOVYCH, DVORKIN LEONID YOSYPOVYCH, KARPOVETS'' VALENTYN PYLYPOVYCH, HRYB YURII STEPANOVYCHL, VOVK OLEKSANDR OLEKSANDROVYCH
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:A process for preparation of gypsum binding agent comprises use of half-aqueous gypsum of ?-modification obtained by preparation of gypsum raw material, partial dehydration thereof in open apparatuses connected to atmosphere at the temperature of 140...180 DEGREE C, and mixing obtained gypsum of ?-modification with complex additive mixing is carried out by common milling of gypsum of ?-modification with complex additive in ball mills. The complexadditive consists of quicklime at an amount of 1.5...2.5 % and hyperplastifier of polycarbonate component at an amount of 0.5...0.7 % of binding agent mass.