HIGH EARLY STRENGTH AGENT FOR CEMENTS, HIGH EARLY STRENGTH CEMENT USING SAME, AND METHOD FOR PRODUCING HIGH EARLY STRENGTH CONCRETE

Provided are: a high early strength agent for cements, which exhibits excellent initial strength developability and excellent fluidity, while having excellent storage stability; a high early strengthcement which uses this high early strength agent for cements; and a method for producing a high early...

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Bibliographische Detailangaben
Hauptverfasser:	HARA HIROFUMI, HIGUCHI TAKAYUKI, SHIGAKI NOBUHIRO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	Provided are: a high early strength agent for cements, which exhibits excellent initial strength developability and excellent fluidity, while having excellent storage stability; a high early strengthcement which uses this high early strength agent for cements; and a method for producing a high early strength cement concrete. This high early strength agent for cements contains 30-60% by mass of nitric acid or a salt thereof, 0.1-10% by mass of a carboxylic acid or a salt thereof, and water; and the elemental calcium concentration in the high early strength agent is 5-20% by mass. 提供初期强度显现性、流动性优异、且贮存稳定性的方面也优异的水泥用早强剂、使用其的早强性水泥、以及早强性水泥混凝土的制造方法。该早强剂为包含硝酸或其盐30～60质量％、羧酸或其盐0.1～10质量％和水的水泥用早强剂，并且该早强剂中的钙元素浓度为5～20质量％。