Ultra-High Performance Concrete UHPC (eBook)

Univ.-Prof. Dr.-Ing. Ekkehard Fehling studied civil engineering and gained his doctoral degree at TU Darmstadt in 1990. In 1993 he was awarded the IABSE Prize (International Association for Bridge & Structural Design). Since 1997 he has been a licensed checking engineer for structural design in concrete and steel. In that same year he was appointed professor of concrete construction at the University of Kassel, Institute of Structural Engineering. Univ.-Prof. Dr.-Ing. habil. Michael Schmidt studied civil engineering and gained his doctoral degree at TU Hannover in 1977. After 20 years of R&D in the German cement industry he served as professor of construction materials at the University of Kassel, Institute of Structural Engineering from 1999 to 2012. Prof. Dr. ir. Dr.-Ing. h. c. Joost Walraven studied civil engineering and gained his doctoral degree at Delft University of Technology in 1980. For five years he was professor of concrete technology at TU Darmstadt, and since 1989 he has been professor of structural and building engineering at TU Delft. He is honorary president of the International Federation for Structural Concrete, fib. Univ.-Prof. Dr.-Ing. Torsten Leutbecher studied civil engineering and gained his doctoral degree at the University of Kassel in 2007. For six years he was a research associate at the University of Kassel, Institute of Structural Engineering. In 2014 he was appointed professor of structural concrete at the University of Siegen. Dipl.-Ing. Susanne Fröhlich is a research assistant at the University of Kassel, Institute of Structural Engineering.

Univ.-Prof. Dr.-Ing. Ekkehard Fehling FG Massivbau, Institut für Konstruktiven Ingenieurbau, Universität Kassel Prof. dr. ir. Dr.-Ing. h. c. Joost Walraven TU Delft, Honorary president of the international concrete federation fib Univ.-Prof. Dr.-Ing. habil. Michael Schmidt FG Werkstoffe im Bauwesen, Institut für Konstruktiven Ingenieurbau, Universität Kassel Univ.-Prof. Dr.-Ing. Torsten Leutbecher, Dept. Bauingenieurwesen, Universität Siegen Dipl.-Ing. Susanne Fröhlich, wiss. MA, Universität Kassel

1. Introduction
2. Principles for the production of UHPC
2.1 Development
2.2 Basic material concepts
2.3 Raw materials
2.4 Mix composition
2.5 Mixing
2.6 Curing and heat treatment
2.7 Testing
3. Mechanical properties of the hardened concrete
3.1 General
3.2 Behaviour in compression
3.3 Behaviour in tension
3.4 Shrinkage
3.5 Creep
3.6 Multi-axial stresses
3.7 Fatigue behaviour
3.8 Dynamic actions
3.9 Fire resistance
3.10 UHPC with combinations of fibres (fibre cocktails)
4. Durability
4.1 Microstructure
4.2 Resistance to aggressive media
4.3 Classification in exposure classes
5. Design principles
5.1 Influence of fibre distribution and fibre orientation
5.2 Analyses for the ultimate limit state
5.3 Analyses for the serviceability limit state
6. Connections
6.1 General
6.2 Dry joints
6.3 Glued joints
6.4 Wet joints
6.5 Grouted joints
6.6 Adding UHPC layers to existing components to upgrade structures
7. Projects completed
7.1 Bridges
7.2 Applications in buildings
7.3 Other applications
8. Acknowledgements
9. References

















1. Einführung
2. Grundlagen zur Herstellung ultrahochfester Betone
2.1 Entwicklung
2.2 Stoffliche Grundlagen
2.3 Ausgangsstoffe
2.4 Mischungszusammensetzung
2.5 Mischen
2.6 Nachbehandlung und Wärmebehandlung
2.7 Prüfung
3. Mechanische Eigenschaften des Festbetons
3.1 Allgemeines
3.2 Drucktragverhalten
3.3 Zugtragverhalten
3.4 Schwinden
3.5 Kriechen
3.6 Mehraxiale Beanspruchung
3.7 Ermüdungsverhalten
3.8 Dynamische Beanspruchung
3.9 Brandwiderstand
3.10 UHPC mit Kombinationen von Fasern (Fasercocktails)
4. Dauerhaftigkeit
4.1 Gefügestruktur
4.2 Widerstand gegen aggressive Medien
4.3 Einordnung in Expositionsklassen
5. Grundlagen der Bemessung
5.1 Einfluss der Faserverteilung und Faserorientierung
5.2 Nachweise in den Grenzzuständen der Tragfähigkeit
5.3 Nachweise in den Grenzzuständen der Gebrauchstauglichkeit
6. Verbindungen
6.1 Allgemeines
6.2 Trockene Verbindungen
6.3 Geklebte Verbindungen
6.4 Nasse Verbindungen
6.5 Grouted Joints
6.6 Verbindung von UHPC-Schichten an existierenden Bauteilen für die Ertüchtigung von Konstruktionen
7. Ausgeführte Beispiele
7.1 Brückenbau
7.2 Anwendungen im Hochbau
7.3 Andere Anwendungen
8. Danksagung
9. Literatur