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Thickness determination of polymeric multilayer surface protection systems for concrete by means of pulse thermography

  • For thickness determination of polymer based surface protection systems for concrete surfaces, so far only destructive measurement techniques are available. Pulse thermography appears to be well suited for non-destructive thickness evaluation in these systems. Here, we present first results of the development of a respective measurement and analysis procedure. Since surface protection systems consist of a number of layers, a model for the calculation of the surface temperature of a multi-layer structure on a semi-infinite (concrete) substrate in pulse thermography setup was developed. It considers semitransparency of the upmost layer and thermal losses at the surface. It also supports the use of an arbitrary temporal shape of the heating pulse to properly describe the measurement conditions for different heat sources. Simulations for one and three layers on the substrate are presented and first results from fitting the model to experimental data for thickness determination andFor thickness determination of polymer based surface protection systems for concrete surfaces, so far only destructive measurement techniques are available. Pulse thermography appears to be well suited for non-destructive thickness evaluation in these systems. Here, we present first results of the development of a respective measurement and analysis procedure. Since surface protection systems consist of a number of layers, a model for the calculation of the surface temperature of a multi-layer structure on a semi-infinite (concrete) substrate in pulse thermography setup was developed. It considers semitransparency of the upmost layer and thermal losses at the surface. It also supports the use of an arbitrary temporal shape of the heating pulse to properly describe the measurement conditions for different heat sources. Simulations for one and three layers on the substrate are presented and first results from fitting the model to experimental data for thickness determination and verification of the model are presented.zeige mehrzeige weniger

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Metadaten
Autor*innen:Simon AltenburgORCiD, Rainer KrankenhagenORCiD, F. Bavendiek
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):QNDE conference 2016 - Review of progress in quantitative nondestructive evaluation
Jahr der Erstveröffentlichung:2017
Verlag:AIP Publishing
Jahrgang/Band:1806
Ausgabe/Heft:1
Erste Seite:Article UNSP 100004, 1
Letzte Seite:10
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Analytical model; Concrete; Semitransparency; Surface protection; Thermography; Thickness
Veranstaltung:QNDE conference 2016 - Review of progress in quantitative nondestructive evaluation
Veranstaltungsort:Atlanta, GA, USA
Beginndatum der Veranstaltung:18.07.2016
Enddatum der Veranstaltung:22.07.2016
DOI:10.1063/1.4974669
ISSN:0094-243X
ISBN:978-0-7354-1474-7
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:08.03.2017
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:07.07.2017
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