CEMENT

PROBLEM TO BE SOLVED: To provide cement increasing the amount of waste used as raw materials and having physical properties equal to high early strength portland cement.SOLUTION: A cement contains a ground product of a burned product having hydraulic modulus (H.M) of 2.10 to 2.30, silica modulus (S....

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Bibliographic Details
Main Authors KUBOTA OSAMU, HIRAO CHU, KUROKAWA DAISUKE
Format Patent
LanguageEnglish
Published 30.06.2014
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide cement increasing the amount of waste used as raw materials and having physical properties equal to high early strength portland cement.SOLUTION: A cement contains a ground product of a burned product having hydraulic modulus (H.M) of 2.10 to 2.30, silica modulus (S.M.) of 1.80 to 2.48, iron modulus (I.M.) of 1.3 to 2.6 and a ratio of 3CaO SiOin 100 mass% of the burned product is 70.0 mass% or less as a calculated value by the Bogue equation, and gypsum, and the ratio of gypsum in 100 mass% of the cement is 1.2 mass% or more in terms of SOconversion, and a ratio of gypsum hemihydrate to gypsum dihydrate and gypsum hemihydrate in the cement is 30 mass% or more in terms of SOconversion.
Bibliography:Application Number: JP20120275980