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Organisationseinheit der BAM
- 8 Zerstörungsfreie Prüfung (43)
- 8.0 Abteilungsleitung und andere (42)
- 9 Komponentensicherheit (12)
- 9.3 Schweißtechnische Fertigungsverfahren (9)
- 8.5 Röntgenbildgebung (7)
- 7 Bauwerkssicherheit (6)
- 7.5 Technische Eigenschaften von Polymerwerkstoffen (6)
- 8.4 Akustische und elektromagnetische Verfahren (3)
- 9.6 Additive Fertigung metallischer Komponenten (3)
- 1 Analytische Chemie; Referenzmaterialien (2)
Eingeladener Vortrag
- nein (101)
Am Deutschen Dom wurden Mikrowellenabsorptionsmessungen, Radar und Infarot- Thermographie als moderne zerstörungsfreie Prüfverfahren der Feuchtemessung in Mauerwerk erprobt. Ergänzende numerische Simulationsrechnungen des gekoppelten Wärme- und Feuchtetransports sollen bei der Auswahl von Trockenlegungskonzepten helfen.
Active infrared thermography in civil engineering - quantitative analysis by numerical simulation
(2003)
The cooling-down process of building structures after heating-up with an external radiation source was analysed to detect voids inside and below the surface. Quantitative results of concrete test specimen containing voids with different sizes at various depths will be presented here. The experimental results were compared to numerical simulations performed with a Finite Difference program developed at BAM.
ZfPBau-Kompendium 2004
(2007)
Dieses Kompendium ist ein kurzgefasster Abriss, ein Leitfaden und auch ein Handbuch der für den Einsatz im Bauwesen geeigneten zerstörungsfreien Prüfverfahren. In strenger, stets gleicher Gliederung wird jede der mehr als 100 Untersuchungsmethoden in einem eigenen Geräteblatt beschrieben. Hinzu kommen Querverweise zu alternativen Prüfmethoden sowie zahlreiche Hinweise auf einschlägige Fachliteratur und zu bekannt gewordenen Geräteherstellern, Lieferanten und Dienstleistern.
Today's civil engineering NDT needs are for quantitative, fast to apply and easy to interpret methods. They are required on site both for evaluation of existing structures/infrastructure and for quality control in new construction. With this purpose, BAM has carried out in-situ feasibility studies, using radar, impact-echo and ultrasonic-echo methods. Two examples are given of their combined application on different railway slab–track constructions, using high frequency radar, scanning impact-echo and ultrasonic array methods. The aim was to evaluate limitations and advantages, comparability and complementarity of these methods. The on-site measurements demonstrated the possibility to investigate, with good accuracy via NDT, the bonding conditions between sleepers and slab, to locate voids and measure layer thickness. The acoustic and electromagnetic methods used, were found to be complementary.