Mineralogical characteristics of Ettringites synthesized from solutions and suspensions

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Neubauer J, Götz-Neunhoeffer F, Schwesig P
Zeitschrift: Cement and Concrete Research
Verlag: Elsevier
Jahr der Veröffentlichung: 2006
Band: 36
Heftnummer: 1
Seitenbereich: 65-70
ISSN: 0008-8846
Sprache: Englisch


Abstract


Due to the wide technical importance of Ettringite (3CaO•Al 2O3•3CaSO4•32H2O) in hydrated cement based systems, four different synthesis methods were applied to get a better overview on how and under what favoring conditions Ettringite can be formed. In the first step different precipitation methods resulting in Ettringite were established. For all methods Al3+ was supplied by aqueous CO2-free solution of Al2(SO4) 3•18H2O. As a source of CaO-supply a clear solution and otherwise a Ca(OH)2-suspension was utilized. Four synthesis routes with and without sucrose were employed. Variation of reaction parameter like temperature, time of reaction, pH-value of synthesis solution and influence of additional Gypsum were investigated. The qualitative phase analysis was performed by X-ray diffraction method (XRD). Morphological aspects of some synthesis products were studied by scanning electron microscopy (SEM). Finally lattice and structural parameter of the Ettringites were determined by refinement of XRD-pattern using the Rietveld-Method. © 2005 Elsevier Ltd. All rights reserved.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Götz-Neunhoeffer, Friedlinde Prof. Dr.
Lehrstuhl für Mineralogie
Neubauer, Jürgen apl. Prof. Dr.
Lehrstuhl für Mineralogie


Zitierweisen

APA:
Neubauer, J., Götz-Neunhoeffer, F., & Schwesig, P. (2006). Mineralogical characteristics of Ettringites synthesized from solutions and suspensions. Cement and Concrete Research, 36(1), 65-70. https://dx.doi.org/10.1016/j.cemconres.2004.04.037

MLA:
Neubauer, Jürgen, Friedlinde Götz-Neunhoeffer, and Peter Schwesig. "Mineralogical characteristics of Ettringites synthesized from solutions and suspensions." Cement and Concrete Research 36.1 (2006): 65-70.

BibTeX: 

Zuletzt aktualisiert 2018-09-08 um 12:38