Formation of hydrate spheres in ternary binder systems

Journal article


Publication Details

Author(s): Götz-Neunhoeffer F, Zubriggen R
Journal: Zkg International
Publication year: 2008
Volume: 61
Journal issue: 12
Pages range: 68-76
ISSN: 0949-0205
Language: English


Abstract


This study examines the hydration kinetics of hydrate-sphere formation. This is a form of heterogeneous setting and can frequently be observed in ternary binder mixtures high in Portland cement and containing calcium aluminate cement and CaSO4, which are retarded by means of tartaric acid. In many cases, the phenomenon of hydrate-sphere formation is the result of aging of the dry mix - quick-setting ternary binder mixtures, in particular, are severely prone to pre-hydration once the package has been opened. Formation of hydrate spheres can be eliminated only to a limited extent via minor adjustments of the formulation, with the result, ultimately, that the formulator is in many cases obliged to reevaluate the entire mineral binder system, including the retarder-accelerator system.



FAU Authors / FAU Editors

Götz-Neunhoeffer, Friedlinde Prof. Dr.
Lehrstuhl für Mineralogie


External institutions
Akzo Nobel Chemicals


How to cite

APA:
Götz-Neunhoeffer, F., & Zubriggen, R. (2008). Formation of hydrate spheres in ternary binder systems. Zkg International, 61(12), 68-76.

MLA:
Götz-Neunhoeffer, Friedlinde, and Roger Zubriggen. "Formation of hydrate spheres in ternary binder systems." Zkg International 61.12 (2008): 68-76.

BibTeX: 

Last updated on 2018-09-08 at 14:08