Preliminary Investigation of Cementitious Materials for Olmsted Lock and Dam

The effect of four fly ashes on strength development and heat-of- hydration characteristics of portland cement-fly ash mixtures was investigated. These comprised three Class F and one Class C fly ash. Mixtures was containing Class C fly ash gained strength more rapidly than mixtures containing Class...

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Bibliographische Detailangaben
Hauptverfasser:	Poole, Toy S, Sykes, Melvin C, Griffin, Shirley D
Format:	Report
Sprache:	eng
Schlagworte:	CEMENTS CHEMICAL PROPERTIES Civil Engineering COMPRESSIVE STRENGTH CONCRETE Construction Equipment, Materials & Supplies CONSTRUCTION MATERIALS DAMS FLY ASH HEAT HEAT OF HYDRATION HYDRATION LOCKS(WATERWAYS) MASS PORTLAND CEMENT STRENGTH(GENERAL) STRENGTH(MECHANICS)
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Zusammenfassung:	The effect of four fly ashes on strength development and heat-of- hydration characteristics of portland cement-fly ash mixtures was investigated. These comprised three Class F and one Class C fly ash. Mixtures was containing Class C fly ash gained strength more rapidly than mixtures containing Class F fly ash. At 2 days, heat of hydration was reduced by all fly ashes, but the Class C fly ash contributed substantial heat at later ages, exceeding pure portland cement in some mixtures. The consequences of using Class C fly ash in mass concrete were investigated. Keywords: Concrete/construction materials; Chemical properties; Strength mechanics; Dams/locks waterways.