METHOD FOR PRODUCING HIGH-STRENGTH CONCRETE MATERIAL AND HIGH-STRENGTH HARDENED BODY

METHOD FOR PRODUCING HIGH-STRENGTH CONCRETE MATERIAL AND HIGH-STRENGTH HARDENED BODY

PROBLEM TO BE SOLVED: To provide a method for producing a high-strength concrete material excellent in flowability, constructability and strength developability at a water-cement ratio of 12-30%, and to provide a method for production of a high-strength hardened body. SOLUTION: The high-strength con...

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Bibliographische Detailangaben
Hauptverfasser: NARUSE HIROYASU, ISHINAKA MASATO
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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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for producing a high-strength concrete material excellent in flowability, constructability and strength developability at a water-cement ratio of 12-30%, and to provide a method for production of a high-strength hardened body. SOLUTION: The high-strength concrete material has a cement composition consisting of 70-84 pts.mass low heat portland cement and 16-30 pts.mass silica fume. The low heat portland cement has: the belite amount in a clinker mineral composition of 45-75 mass%; an aluminate phase of ≤4.0 mass%; an SO3amount of 1.5-4.5 mass%; a specific surface area of 3,000-4,500 cm2/g; and a hemihydrate plaster of ≤80 mass% based on total plaster amount. The high-strength concrete excellent in flowability, constructability and strength developability at a water-cement ratio of 12-30% can be obtained by using the above material. COPYRIGHT: (C)2007,JPO&INPIT