Phosphonate mediated surface reaction and reorganization: implications for the mechanism controlling cement hydration inhibition

Vertical scanning interferometry and XPS show the reaction of CaCO3 with the hydration retarder nitrilo-tris-(methylene)phosphonic acid follows a pathway of dissolution of the calcium followed by precipitation of a calcium phosphonate; subsequent surface reorganization/restructuring of the calcium p...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2005-05 (18), p.2354-2356
Main Authors: Lupu, Corina, Arvidson, Rolf S, Luttge, Andreas, Barron, Andrew R
Format: Article
Language:English
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Summary:Vertical scanning interferometry and XPS show the reaction of CaCO3 with the hydration retarder nitrilo-tris-(methylene)phosphonic acid follows a pathway of dissolution of the calcium followed by precipitation of a calcium phosphonate; subsequent surface reorganization/restructuring of the calcium phosphonate exposes the underlying CaCO3 for further hydration.
ISSN:1359-7345
1364-548X
DOI:10.1039/b500192g