45. Fibre reinforced shotcrete for long tunnel projects in Switzerland

Title: 45. Fibre reinforced shotcrete for long tunnel projects in Switzerland
Author(s): V. Wetzig, R. Weiss
Paper category : conference
Book title: 6th International RILEM Symposium on Fibre Reinforced Concretes
Editor(s): M. di Prisco, R. Felicetti and G.A. Plizzari
Print-ISBN: 2-912143-51-9
e-ISBN: 2912143748
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 545 - 552
Total Pages: 8
Nb references: 3
Language: English

Abstract: Fibre reinforced shotcrete is nowadays a common support mean in tunnels. Fibres, and especially steel fibres, are added into shotcrete to improve the ductility and energy absorption. But also polypropylene fibres are in use as structural fibres to prevent spalling of the concrete.
The determination of the properties of the material is normally done with rectangular or circular plate tests. The plates are supported on the whole circumference. Bending tests with beams are not very common to determine the properties of fibre reinforced shotcrete. The result from different test methods are compared to prove the existing relation between the different methods

Online publication: 2004-08-30
Publication type : full_text
Public price (Euros): 0.00