Borate retardation of cement set and phase relations in the system Na2O-CaO-B2O3-H2O

L. J. Csetenyi, F. P. Glasser

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27 Citations (Scopus)

Abstract

The CaO-rich portions of this system have been determined at 25° and 55 °C. Twenty-one closely spaced compositions were prepared from analytical reagent-grade materials and reacted in sealed containers for up to 6 months. Solid phases were characterized mainly by X-ray diffraction and the aqueous phase was analysed chemically for Ca, Na and B. Solubility data were also obtained from single-phase preparations of selected hydrates; in conjunction with data in the literature, extensive thermodynamic modelling of solubility relations was undertaken. The combination of calculation and experimental determinations enabled the equilibrium features to be determined rapidly; cross-checks between calculated and experimental data are presented.

Original languageEnglish
Pages (from-to)13-19
Number of pages7
JournalAdvances in Cement Research
Volume7
Issue number25
DOIs
Publication statusPublished - 1 Jan 1995

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