Concrete composition using blast furnace slag composition

Disclosed is a concrete composition which is capable of securing good construction workability by suppressing decrease in fluidity of the concrete composition or decrease of air in the concrete composition over time, while suppressing the discharge amount of carbon dioxide. The concrete composition...

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Bibliographische Detailangaben
Hauptverfasser:	YONEZAWA TOSHIO, IKEO YOSAKU, SAITOU KAZUHIDE, HASUMI TAKASHI, KINOSHITA MITSUO, MITSUI KENRO, TAMAKI SHINJI, INOUE KAZUMASA, KURODA MOE, WACHI MASAHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	Disclosed is a concrete composition which is capable of securing good construction workability by suppressing decrease in fluidity of the concrete composition or decrease of air in the concrete composition over time, while suppressing the discharge amount of carbon dioxide. The concrete composition is also capable of suppressing drying shrinkage of a hardened product thereof and providing the hardened product with a necessary strength. Specifically disclosed is a concrete composition containing at least a cementitious material, water, a fine aggregate, a coarse aggregate and an admixture, wherein the blast furnace slag composition described below is used as the cementitious material at a mass ratio of water/blast furnace slag composition of 30-60%. Blast furnace slag composition: a blast furnace slag composition which is obtained by adding 0.5-1.5 parts by mass or 5-45 parts by mass of an alkali activator per 100 parts by mass of a mixture that contains 80-95% by mass of a ground granulated blast furnace slag