PRODUCING METHOD OF BY-PRODUCT HYDRATED LIME AS ALKALI ACTIVATOR OF BLAST FURNACE SLAG BLENDED CEMENT

PURPOSE: A manufacturing method of carbide lime for an alkali activator of a granulated blast furnace slag mixed cement is provided to protect natural resources and cut greenhouse gases by reducing cement raw material use. CONSTITUTION: A manufacturing method of carbide lime for an alkali activator...

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Main Authors KIM, HWAN, CHOI, MOON KWAN, AHN, JI HWAN, CHO, JIN SANG, CHO, KYE HONG, YOO, YOUNG HWAN
Format Patent
LanguageEnglish
Korean
Published 08.03.2012
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE: A manufacturing method of carbide lime for an alkali activator of a granulated blast furnace slag mixed cement is provided to protect natural resources and cut greenhouse gases by reducing cement raw material use. CONSTITUTION: A manufacturing method of carbide lime for an alkali activator of a granulated blast furnace slag mixed cement comprises the steps of heat-treating the carbide lime for 1-3 hours at 700-1000deg.C and rehydrating the heat-treated carbide lime. The rehydrating step includes steps of mixing and stirring the heat-treated carbide lime with water at a weight ratio of 1:6 to 3 at an initial temperature 20-30deg.C. The carbide lime is an industrial byproduct which is generated from an acetylene(C2H2) gas production process and the carbide lime has a particle size of 325mesh.
Bibliography:Application Number: KR20100084757