Study of amorphous metallic fibers as alternative constituents in a referenced industrial UHPFRC mix: Conditions of optimized applications

Author(s) : A. Duthoit, P. Bredy-Tuffe, C. Blin, L. Michel
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: 37 - 44
Total Pages : 8
Language : English

Abstract: The purpose of this research is to identify an optimal composition of a UHPFRC based on a referenced industrial mix reinforced with amorphous metallic fibers (AMF). Amorphous metals, also called metallic glass alloys, are obtained through a fast cooling of a molten metal resulting in a non-crystalline structure. Combining this process to fibers results in AMF bring together strength, flexibility, thinness, durability and rustproof properties. The final aim of this study is to analyse the feasibility and the advantages of replacing steel fibers (SF) by AMF in UHPFRC. Compressive and three-point bending tests were carried out for two parameters: the length of the AMF of 20 mm, 15 mm, 10 mm (for a width of 1mm and a thickness of 24 um); and the volume fraction of AMF between 1 % and 2 %. Based on experimental results, the optimal composition consists in a volume fraction of 1.5 % of 15 mm-long AMF. The comparison with a UHPFRC composed of 2 % SF leads to similar mechanical resistances. Non-referenced tests using salt water in the composition of the UHPFRC as well as for the storage water show a potential use of non-fresh water when using UHPFRC with AMF.

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