ENHANCED BLENDED AND PORTLAND CEMENT COMPOSITIONS

ENHANCED BLENDED AND PORTLAND CEMENT COMPOSITIONS

This invention relates to a method of enhancing the later age strength of certain blended cements. Under the process of this invention, certain blended cements, in particular those made from cement clinkers containing at least 4% C4AF, when mixed with up to 0.2% triisopropanolamine exhibit a marked...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JAMES MICHAEL GAIDIS, ELLIS MARTIN GARTNER, DAVID FRANCES MYERS
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:This invention relates to a method of enhancing the later age strength of certain blended cements. Under the process of this invention, certain blended cements, in particular those made from cement clinkers containing at least 4% C4AF, when mixed with up to 0.2% triisopropanolamine exhibit a marked increase in 7 and 28-day compressive strengths. The blended cements of this invention contain between 5 and 60% fillers or clinker substitutes. The triisopropanolamine strength enhancing additive may be admixed with the cement powder or may be interground with the cement clinker during finish milling.