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.…
Autor*innen: | Thorsten Eichler, Gerd Wilsch, Steven Millar, Dieter Schaurich |
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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 |