RAW MATERIALS MIXTURE FOR MANUFACTURING OF CAST GYPSUM ARTICLES AND METHOD FOR ITS PRODUCTION Russian patent published in 1996 - IPC

Abstract RU 2057736 C1

FIELD: building materials production. SUBSTANCE: proposed composition contains semihydrous and highly calcined gypsum, zeolite-containing rock, slaked lime, gypsum meal, superplasticizer and water. All mentioned above components are preliminary ground with dry powder superplasticizer, the process is carried out in ball mill within 20-30 min. Thus prepared mixture is placed into concrete mixer and water is added into it. After mixture said composition is poured into shape and allowed to stand there within 0.5 h. Compressive strength of articles being manufactured by said method and having mentioned above composition is 32.4 MPa, their bending strength being 7.5 MPa. EFFECT: improves quality of desired articles, improves efficiency of method. 3 cl, 3 tbl

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RU 2 057 736 C1

Authors

Altykis M.G.

Khaliullin M.I.

Rakhimov R.Z.

Sheptitskij S.P.

Dates

1996-04-10—Published

1992-08-11—Filed