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

Patrick Stähli, Rocco Custer, Jan G. M. van Mier

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

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 30 mm 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.
Original languageEnglish
JournalMaterials and Structures
Volume41
Issue number1
Pages (from-to)189-196
ISSN1359-5997
DOIs
Publication statusPublished - 2008
Externally publishedYes

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