Effect of moisture on the reliability of void detection in brickwork masonry using radar, ultrasonic and complex resistivity tomography
- The influence of moisture on the reliability of detection of larger voids in brickwork masonry was investigated using three non-destructive techniques: radar, ultrasonic and complex resistivity (CR). Radar and ultrasonic travel time tomography, as well as CR tomography, were performed over a specific cross section of a specimen containing a large void at a known position to determine the influence of different levels of moisture content in the brickwork on the wave velocities and the CR magnitude. We defined a numerical estimator to quantitatively determine the void detection efficiency from the images obtained when exposing the specimen to moisture. The results showed radar to be the most reliable technique for void detection in both dry and wet masonry, while CR performed much better in detecting larger air voids in wet masonry.
Autor*innen: | P. Cotic, Z. Jaglicic, Ernst NiederleithingerORCiD, Ute EffnerORCiD, Sabine KruschwitzORCiD, Christiane Trela, V. Bosiljkov |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Materials and Structures |
Jahr der Erstveröffentlichung: | 2013 |
Verlag: | Springer |
Verlagsort: | Dordrecht |
Jahrgang/Band: | 46 |
Ausgabe/Heft: | 10 |
Erste Seite: | 1723 |
Letzte Seite: | 1735 |
Freie Schlagwörter: | Masonry; Moisture; Radar; Tomography; Ultrasonic and complex resistivity; Ultrasound; Void detection |
DOI: | 10.1617/s11527-012-0011-3 |
ISSN: | 1359-5997 |
ISSN: | 1871-6873 |
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: | 16.01.2014 |