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Laser induced breakdown spectroscopy (LIBS) as a tool for the investigation of aging of infrastructure

  • The laser induced breakdown spectroscopy (LIBS) is a combination of laser ablation and optical emission spectroscopy. Due to the possibility of direct measurements on the sample surface and a minimum of required sample preparation investigations of building materials can be conducted quite fast. In combination with a scanning technique (translation stage or scanning mirrors head) the element distributions are evaluated taking in to account the heterogeneity of the material. This is a significant advantage compared to standard procedures. LIBS measurements are also time and cost saving in comparison to standard methods. The automated measurement procedures minimise the liability for errors. All elements are detectable and after calibration results can be quantified. At BAM LIBS has been successfully applied for the investigation of distribution and transport of different ions in building materials. Quantitative measurements are performed for chlorine, sodium, potassium, sulphur, lithiumThe laser induced breakdown spectroscopy (LIBS) is a combination of laser ablation and optical emission spectroscopy. Due to the possibility of direct measurements on the sample surface and a minimum of required sample preparation investigations of building materials can be conducted quite fast. In combination with a scanning technique (translation stage or scanning mirrors head) the element distributions are evaluated taking in to account the heterogeneity of the material. This is a significant advantage compared to standard procedures. LIBS measurements are also time and cost saving in comparison to standard methods. The automated measurement procedures minimise the liability for errors. All elements are detectable and after calibration results can be quantified. At BAM LIBS has been successfully applied for the investigation of distribution and transport of different ions in building materials. Quantitative measurements are performed for chlorine, sodium, potassium, sulphur, lithium and hydrogen. Beside this the identification of substances and the evaluation of quantitative ratios by means of an integrated marker are possible. An overview about the principle and the possibilities of LIBS investigations of building materials is presented and typical applications are shown. The LIBS technique is on the step from laboratory application to on-site analyses.zeige mehrzeige weniger

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Autor*innen:Thorsten Eichler, Gerd Wilsch, Steven Millar, Dieter Schaurich
Persönliche Herausgeber*innen:K. Van Breugel, E.A.B. Koenders
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):AMS 14 - Ageing of materials & structures - Proceedings of the 1st ageing of materials & structures 2014 conference
Jahr der Erstveröffentlichung:2014
Herausgeber (Institution):TU Delft
Erste Seite:461
Letzte Seite:468
Freie Schlagwörter:Alkali silica reaction (ASR); Chemical analysis; Chlorine; Concrete deterioration; Element mapping; Heterogeneity; LIBS; Sulphur
Veranstaltung:1st Ageing of materials & structures 2014 conference
Veranstaltungsort:Delft, The Netherlands
Beginndatum der Veranstaltung:26.05.2014
Enddatum der Veranstaltung:28.05.2014
ISBN:978-94-6186-313-3
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein
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