Study of hydration potential and kinetics of the ferrite phase in iron-rich CAC

Journal article
(Original article)


Publication Details

Author(s): Hertel T, Neubauer J, Götz-Neunhoeffer F
Journal: Cement and Concrete Research
Publisher: Elsevier Ltd
Publication year: 2016
Volume: 83
Pages range: 79-85
ISSN: 0008-8846
Language: English


Abstract


With the presence of CA, the hydration kinetics of ferrite phase is influenced and decreased dramatically. Heat flow measurements, QXRD data, and heat flow calculations show concordantly that hydration of ferrite in mix with CA is retarded until the onset of CA hydration and that less ferrite is dissolved. Analysis of the liquid phase of CA paste and CAC-like cement paste displayed significant higher concentrations of Al and Ca compared with pure ferrite paste. Thus, the composition of the liquid phase is set by initial dissolution of CA. We assume that an instant dissolution of the ferrite phase is blocked when solubility equilibrium is dominated by CA. Dissolution of ferrite is only possible after massive precipitation of hydrates and reduction of Ca and Al concentration in the liquid phase.



FAU Authors / FAU Editors

Götz-Neunhoeffer, Friedlinde Prof. Dr.
Naturwissenschaftliche Fakultät
Hertel, Tobias
Lehrstuhl für Mineralogie
Neubauer, Jürgen apl. Prof. Dr.
Lehrstuhl für Mineralogie


How to cite

APA:
Hertel, T., Neubauer, J., & Götz-Neunhoeffer, F. (2016). Study of hydration potential and kinetics of the ferrite phase in iron-rich CAC. Cement and Concrete Research, 83, 79-85. https://dx.doi.org/10.1016/j.cemconres.2016.01.004

MLA:
Hertel, Tobias, Jürgen Neubauer, and Friedlinde Götz-Neunhoeffer. "Study of hydration potential and kinetics of the ferrite phase in iron-rich CAC." Cement and Concrete Research 83 (2016): 79-85.

BibTeX: 

Last updated on 2018-17-11 at 20:50