CEMENT COMPOSITION

PROBLEM TO BE SOLVED: To provide a cement composition from which mortar or concrete having high strength and high workability can be produced simply. SOLUTION: The cement composition comprises portland cement containing 30-60 mass% of 2 CaO-SiO2and silica fume with a BET specific surface area of 5-1...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUMOTO KENICHI, TANIMURA MITSURU
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT 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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a cement composition from which mortar or concrete having high strength and high workability can be produced simply. SOLUTION: The cement composition comprises portland cement containing 30-60 mass% of 2 CaO-SiO2and silica fume with a BET specific surface area of 5-15 m2/g. Preferably, the portland cement contains at most 6 mass% of 3 CaO-Al2O3and silica fume contains 0.5-5.5 mass% of Al2O3and 0.01-0.025 mass% of SO3. COPYRIGHT: (C)2008,JPO&INPIT