Pathway of a damaging mechanism - Analyzing chloride attack by synchrotron based X-ray diffraction
- Typically, the changes of the phase compositions due to the chemical attack are studied in-situ only by chemical analysis or microscopy. In this study, the chloride transport and binding in the cement matrix in different cementitious materials was analyzed by synchrotron based X-ray diffraction (SyXRD) and energy dispersive X-ray spectroscopy (EDX). Sample materials consisting of cement paste were embedded in high concentrated sodium chloride solution over different time spans. Afterwards, the phase and chemical compositions were determined. The high spatial resolution and the information about the chloride distribution offer a detailed view of chloride binding in the cement matrix and allow the conclusions about the degradation mechanisms. The results are discussed related to the influence of different supplementary cementitious materials on the damaging mechanism.
Autor*innen: | M.C. Schlegel, Julia StrohORCiD, K. Malaga, Birgit MengORCiD, Ulrich PanneORCiD, Franziska EmmerlingORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Solid state sciences |
Jahr der Erstveröffentlichung: | 2015 |
Verlag: | Elsevier Masson SAS |
Verlagsort: | Amsterdam |
Jahrgang/Band: | 44 |
Erste Seite: | 45 |
Letzte Seite: | 54 |
Freie Schlagwörter: | Chloride attack; Durability; EDX; In-situ; Portland cement; X-Ray diffraction |
DOI: | 10.1016/j.solidstatesciences.2015.03.021 |
ISSN: | 1293-2558 |
ISSN: | 1873-3085 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 11.05.2015 |