Early activation and properties of slag cement

Early age activation of granulated blast-furnace slag (BFS) and blends of slag and portland cement (OPC) has been studied. Activators include sodium-hydroxide, sodium sulfate, alum (potassium aluminum sulfate), superplasticizer, and calcium aluminate cement. Heat of hydration, x-ray phase characteri...

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Published in:Cement and concrete research 1990-11, Vol.20 (6), p.961-974
Main Authors: Wu, Xuequan, Jiang, Weimin, Roy, D.M.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
Exact sciences and technology
Hydration
Materials
Properties of anhydrous and hydrated cement, test methods
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description Early age activation of granulated blast-furnace slag (BFS) and blends of slag and portland cement (OPC) has been studied. Activators include sodium-hydroxide, sodium sulfate, alum (potassium aluminum sulfate), superplasticizer, and calcium aluminate cement. Heat of hydration, x-ray phase characterization, compressive strength, viscometry, pore size distribution and related characterization studies have been made. Activated BFS-cement mortars having equivalent strengths at 1 day to OPC have been prepared, which also have 28- and 90-day strengths exceeding those of the OPC. Mechanisms of activation are discussed.
doi_str_mv 10.1016/0008-8846(90)90060-B
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source Backfile Package - Materials Science [YMS]
subjects Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
Exact sciences and technology
Hydration
Materials
Properties of anhydrous and hydrated cement, test methods
title Early activation and properties of slag cement
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