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Experimental characterization of the fracture behavior of UHPFRC

  • Ultra-high performance fiber-reinforced concretes (UHPFRCs) are most suitable for applications with extreme mechanical loads. These extreme conditions require ductile behavior under tensile loading, which is obtained solely by the working mechanism of steel fibers. Profound knowledge on the working mechanism of the steel fibers is necessary to optimize this material. Usually, this knowledge is obtained by means of classical destructive measuring techniques. Adopting measuring techniques from non-destructive material testing helps to analyze and to identify the different stages of the fracture mechanism of UHPFRC in detail. The application of different non-destructive measuring techniques is shown exemplary on tensile tests conducted on an UHPFRC mix and its applicability for analyzing the fracture behavior of such concretes is discussed. The main focus is on the characterization of the relevant failure modes under tensile loading by the different measuring techniques and the comparisonUltra-high performance fiber-reinforced concretes (UHPFRCs) are most suitable for applications with extreme mechanical loads. These extreme conditions require ductile behavior under tensile loading, which is obtained solely by the working mechanism of steel fibers. Profound knowledge on the working mechanism of the steel fibers is necessary to optimize this material. Usually, this knowledge is obtained by means of classical destructive measuring techniques. Adopting measuring techniques from non-destructive material testing helps to analyze and to identify the different stages of the fracture mechanism of UHPFRC in detail. The application of different non-destructive measuring techniques is shown exemplary on tensile tests conducted on an UHPFRC mix and its applicability for analyzing the fracture behavior of such concretes is discussed. The main focus is on the characterization of the relevant failure modes under tensile loading by the different measuring techniques and the comparison with classical measuring techniques (e.g. extensometer). The tensile tests have been analyzed by optical deformation measurements using digital image correlation (DIC), acoustic emission analysis (AE), and 3D computed tomography (CT).zeige mehrzeige weniger

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Metadaten
Autor*innen:Götz HüskenORCiD, Stephan PirskawetzORCiD, Dietmar Meinel
Persönliche Herausgeber*innen:Ivana Banjad Pecur, Ana Baricevic, Nina Stirmer, Dubravka Bjegovic
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Graue Literatur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Proceedings of the 1st International Conference on Construction Materials for Sustainable Future
Jahr der Erstveröffentlichung:2017
Herausgeber (Institution):University of Zagreb, Faculty of Civil Engineering, Zagreb, Croatia
Erste Seite:293
Letzte Seite:299
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:3D computed tomography; Acoustic emission analysis; Optical deformation measurement; Tensile strength; UHPFRC
Veranstaltung:1st International Conference on Construction Materials for Sustainable Future (CoMS_2017)
Veranstaltungsort:Zadar, Croatia
Beginndatum der Veranstaltung:19.04.2017
Enddatum der Veranstaltung:21.04.2017
ISBN:978-953-8168-04-8
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:25.04.2017
Referierte Publikation:Nein
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