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

  • So far, only destructive measurement techniques are available for thickness determination of polymer based surface protection systems for concrete surfaces. 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 an 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. First experimental results regarding the verification of the model are presented. Funding by the Federal Ministry for Economic Affairs and Energy is gratefully acknowledged.So far, only destructive measurement techniques are available for thickness determination of polymer based surface protection systems for concrete surfaces. 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 an 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. First experimental results regarding the verification of the model are presented. Funding by the Federal Ministry for Economic Affairs and Energy is gratefully acknowledged.zeige mehrzeige weniger

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Metadaten
Autor*innen:Simon AltenburgORCiD
Koautor*innen:Rainer Krankenhagen, F. Bavendiek
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2016
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Analytical model; Concrete; Semitransparency; Surface protection; Thermography; Thickness
Veranstaltung:QNDE 2016
Veranstaltungsort:Atlanta, GA, USA
Beginndatum der Veranstaltung:17.07.2016
Enddatum der Veranstaltung:22.07.2016
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:28.07.2016
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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