Design of a UHPFRC using amorphous metallic fibres

Author(s) : J. Bertrand, A. Turatsinze, A. Toumi, F. Bernard
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: 53 - 62
Total Pages : 10
Language : English

Abstract: Due to steel fibre corrosion, Ultra High Performance Fibre Reinforced Concrete (UHPFRC) surface may suffer from aesthetic defects. This study addresses the design of an UHPFRC using corrosion-resistant amorphous metallic fibres manufactured by Saint-Gobain SEVA. Workability, compressive, tensile strength and post-cracking behaviour are assessed with regard to the French standard NF P18-470. Moreover, an inverse analysis method is carried out to determine the tensile post-cracking behaviour of the material. With a mixture containing 1% fibre by volume and the most effective polycarboxylate-based superplasticizer among five tested, (a) the workability corresponds to a viscous UHPFRC, (b) the compressive strength corresponds to an UHPFRC 130/145, (c) the tensile strength meets the requirement of the standard, but (d) the criterion of post-cracking energy absorption is not met with 2.34 MPa vs. 3 MPa. Ongoing work in order to optimize the UHPFRC formulation is expected to improve the post-cracking residual strength and fulfill all the requirements of NF P18-470.

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