METHOD OF PREPARING LIME-SAND BUILDING MATERIAL Russian patent published in 2000 - IPC

Abstract RU 2149149 C1

FIELD: building industry, more particularly manufacture of brick. SUBSTANCE: method comprises preparation of compound by milling sand, chemical activation thereof by mixing said sand with aqueous solution of hydrochloric acid in amount of 3-10% calculated for compound of sand, mixing of said sand with unslaked lime (calcium oxide) in amount of 4-10% followed by mixing with slaked lime in amount of 6-12%, carbonization of products molded from compound at atmospheric pressure and at temperatures from 60 to 99 C followed by drying at temperature of not high than 100 C. EFFECT: more efficient preparation method.

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RU 2 149 149 C1

Authors

Gromov A.M.

Kabardin A.G.

Ovcharenko G.I.

Dates

2000-05-20Published

1998-04-17Filed