Applying high resolution SyXRD analysis on sulfate attacked concrete field samples
- High resolution synchrotron X-ray diffraction (SyXRD) was applied for a microstructural profile analysis of concrete deterioration after sulfate attack. The cement matrices consist of ordinary Portland cement and different amounts of supplementary cementitious materials, such as fly ash, natural pozzolana and granulated blast furnace slag. The changes of the phase composition were determined along the direction of sulfate ingress. This approach allows the identification of reaction fronts and zones of different phase compositions and conclusions about the mechanisms of sulfate attack. Two reaction fronts were localized in the initial 4 mm from the sample surface. The mechanism of deterioration caused by the exposition in the sulfate-bearing soil is discussed. SyXRD is shown to be a reliable method for investigation of cementitious materials with aggregates embedded in natural environments.
Autor*innen: | Julia StrohORCiD, Moritz-Caspar Schlegel, E.F. Irassar, Birgit MengORCiD, Franziska EmmerlingORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Cement and concrete research |
Jahr der Erstveröffentlichung: | 2014 |
Verlag: | Pergamon Press |
Verlagsort: | New York, NY |
Jahrgang/Band: | 66 |
Erste Seite: | 19 |
Letzte Seite: | 26 |
Freie Schlagwörter: | Concrete (E); Degradation (C); High resolution; Sulfate attack (C); X-ray diffraction (B) |
DOI: | 10.1016/j.cemconres.2014.07.015 |
ISSN: | 0008-8846 |
ISSN: | 1873-3948 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 28.08.2014 |