Effect of fibre orientation on the tensile strength of ultra-high performance steel fibre-reinforced self-compacting concrete

Author(s) : W.R. Leal Da Silva, O. Svec, L.N. Thrane, C. Pade
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 191 - 200
Total Pages : 10
Language : English

Abstract: Fibre orientation has a significant impact on the mechanical properties of fibre reinforced concrete. Experimental studies indicate that there exists a prevailing linear relation between the fibre orientation factor and the corresponding tensile strength of the material. This paper extends the knowledge of fibre orientation and its influence on tensile strength to the field of ultra-high performance steel fibre-reinforced self-compacting concrete (UHPSFRSCC). For that, a slab produced with UHPSFRSCC was cast and cut into cubic samples (cross section: 75 × 75 mm). Ten selected samples were tested by means of a custom designed direct-tensile strength test method. Subsequently, an image analysis algorithm identified the number of fibres on the samples’ fracture plane, allowing for computing the corresponding local fibre orientation factor. Finally, the fibre orientation factor was correlated to tensile strength test results, composing a set of design charts fit for design applications.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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