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Alkalies in cement: A review I. Forms of Alkalies and their effect on clinker formation

✍ Scribed by Inam Jawed; Jan Skalny

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 753 KB
Volume: 7
Category: Article
ISSN: 0008-8846
DOI: 10.1016/0008-8846(77)90056-4

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✦ Synopsis

Alkalies in portland cement clinker occur as sulfates and, depending on the amount of SO3 available, may also be present in calcitun silicate and aluminate phases. Introduction of alkalies into clinker minerals modifies their crystal structure which, in turn, can change their hydraulic reactivity. Alkalies affect the clinkering process by modifying the physicochemical properties of the melt formed in the kiln, and may have an adverse effect on the phase composition of clinker.

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