ALUMINA SPINEL-BASED CASTING COMPOSITION FOR REFRACTORIES

PURPOSE:To obtain a composition for refractories, containing an Al2O3-based aggregate, a spinel-based aggregate and a component composed of an Al2O3 cement-containing powder and having a specified particle size and capable of improving the fluidity by blending water therewith so that the obtained mi...

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Hauptverfasser:	YUKINAWA TSUGIO, IKUTA RYOZO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a composition for refractories, containing an Al2O3-based aggregate, a spinel-based aggregate and a component composed of an Al2O3 cement-containing powder and having a specified particle size and capable of improving the fluidity by blending water therewith so that the obtained mixture may have a prescribed flow value defined by JIS. CONSTITUTION:This alumina spinel-based casting composition for refractories, containing a powdery Al2O3 having =4500cm /g Blaine value, 0.02 to 0.15wt.% dispersant and a powder containing fumed silica and/or clay fine powder (1 to 10wt.% on Si02 base) and having