HIGH FUNCTIONAL BINDER COMPOSITION FOR CARBON DIOXIDE REDUCTION DISPLAYING PROPERTIES OF EARLY STRENGTH

PURPOSE: A carbon dioxide reduction type binder composition which has high early strength property is provided to improve concrete strength degradation according to large amount of industrial byproduct and cement use by including phosphate magnesia, clinker dust, calcium hydroxide, and a mixture of...

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Bibliographische Detailangaben
Hauptverfasser:	CHOI, CHUNG SEOG, RYU, DEUG HYUN, KIM, HOON SANG, JEUN, JUN YOUNG, YOO, CHANG DAL, KIM, HONG JOO, HWANG, HAE JEONG
Format:	Patent
Sprache:	eng ; kor
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:	PURPOSE: A carbon dioxide reduction type binder composition which has high early strength property is provided to improve concrete strength degradation according to large amount of industrial byproduct and cement use by including phosphate magnesia, clinker dust, calcium hydroxide, and a mixture of calcium Sulfoaluminate aluminate based compound and dimorphism anhydrous gypsum. CONSTITUTION: A carbon dioxide reduction type binder composition which has high early strength property comprises 10-20 weight% of normal Portland cement, 30-80 weight% of blast furnace slag micropowder, 5-30 weight% of fly ash, 1-5 weight% of calcium hydroxide, 1-10 weight% of mixture of calcium sulfoaluminate(4CaO·3Al2O3·SO3) based compound(CSA) and dimorphism anhydrous gypsum(CaSO4), and 1-10 weight% of clinker dust, and 1-3 weight% of phosphate magnesia. A weight ratio of the dimorphism anhydrous gypsum to CSA is 1:1-4. The Blaine of clinker dust has a specific surface area of 8,000-12,000cm^2/g. Content amount of SO3 is 2-5 weight% and K2O+Na2O is 1-5 weight%.