RAW MIXTURE FOR LUMPED PHOSPHOGYPSUM PRODUCING Russian patent published in 1995 - IPC

Abstract RU 2034805 C1

FIELD: building materials. SUBSTANCE: raw mixture has, wt.-%: phosphogypsum (as dry dihydrate) 30-35; phosphosemihydrate (as dry semihydrate) 40-45, and cement dust - the rest. Compression strength of lumped phosphogypsum at the early time of hardening is 2.0-2.4, and water resistance is 78-79.4%. EFFECT: enhanced quality of material. 2 tbl

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RU 2 034 805 C1

Authors

Sycheva L.I.

Kuznetsova T.V.

Anufriev M.V.

Udachkin I.B.

Makarov A.N.

Dates

1995-05-10—Published

1991-10-28—Filed