Low-carbon ordinary Portland cement and manufacturing method thereof

The invention discloses a low-carbon ordinary Portland cement and a manufacturing method thereof. The low-carbon ordinary Portland cement comprises, by weight, 76-81% of clinker, 3-5% of industrial flue gas desulfurization gypsum, 6-12% of fly ash and 4-10% of waste lime stone powder. The low-carbon...

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Bibliographische Detailangaben
Hauptverfasser:	LI YAO, YIN SUHONG, WU QINGREN
Format:	Patent
Sprache:	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:	The invention discloses a low-carbon ordinary Portland cement and a manufacturing method thereof. The low-carbon ordinary Portland cement comprises, by weight, 76-81% of clinker, 3-5% of industrial flue gas desulfurization gypsum, 6-12% of fly ash and 4-10% of waste lime stone powder. The low-carbon ordinary Portland cement is manufactured through a low-grade raw material and industrial solid waste, the low-grade raw material is high-silicon low-calcium low-grade limestone, and the industrial solid waste comprises the industrial flue gas desulfurization gypsum, coal residues, sulfuric-acid residues, high-aluminum low-iron mud, the fly ash, the waste lime stone powder and the like. Through testing and calculation, the CO2 emission amount of unit of the low-carbon ordinary Portland cement is lower than that of unit ordinary Portland cement specified in Technical requirement for Environmental Labeling Products (HJ2519-2012) of the Ministry of Environmental Protection, and the CO2 emission amount threshold of the unit ordinary Portland cement is 665kg/t.