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On flow properties, fibre distribution, fibre orientation and flexural behaviour of FRC

Stähli, Patrick ; Custer, Rocco ; van Mier, Jan

In: Materials and Structures, 2008, vol. 41, no. 1, p. 189-196

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    Titel
    • On flow properties, fibre distribution, fibre orientation and flexural behaviour of FRC
    Autor
    • Stähli, Patrick. Department of Civil Engineering, ETH Zurich, Institute for Building Materials, 8093, Zurich, Switzerland
    • Custer, Rocco. Department of Civil Engineering, ETH Zurich, Institute for Building Materials, 8093, Zurich, Switzerland
    • van Mier, Jan. Department of Civil Engineering, ETH Zurich, Institute for Building Materials, 8093, Zurich, Switzerland
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Materials and Structures, 2008, vol. 41, no. 1, p. 189-196. Springer Netherlands
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:311062
    Summary
    For improving the mechanical properties of fibre reinforced concrete one can either increase the fibre content, use hybrid fibre systems, or one can attempt to align fibres in the direction of stress. In this paper, it is attempted to use the flow-properties of the fresh (self-compacting) concrete to change the fibre distribution and orientation. Using a single mixture of fibre reinforced concrete, containing 3% of 30mm long straight steel fibres, the fibre distribution and orientation was determined in three different parts of a ‘U-shaped specimen' where the concrete could flow in three different directions. The fibre distribution and orientation was determined from a CT-scan. Flexural tests show that the mechanical behaviour depends on the fibre distribution and orientation, which can be affected by changing the viscosity of the fresh mixture