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

TY - JOUR

T1 - Borate retardation of cement set and phase relations in the system Na2O-CaO-B2O3-H2O

AU - Csetenyi, L. J.

AU - Glasser, F. P.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0029219322

U2 - 10.1680/adcr.1995.7.25.13

DO - 10.1680/adcr.1995.7.25.13

M3 - Article

AN - SCOPUS:0029219322

SN - 0951-7197

VL - 7

SP - 13

EP - 19

JO - Advances in Cement Research

JF - Advances in Cement Research

IS - 25

ER -