title: Phosphonate mediated surface reaction and reorganization: implications for the mechanism controlling cement hydration inhibition.
abstract: 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.
authors.affiliation: Department of Chemistry, Rice University, Houston, Texas, USA.
authors.forename: Corina
authors.initials: C
authors.lastname: Lupu
authors.forename: Rolf S
authors.initials: RS
authors.lastname: Arvidson
authors.forename: Andreas
authors.initials: A
authors.lastname: Luttge
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Barron