3D MODELLING OF THE FLOW OF SELF-COMPACTING CONCRETE WITH OR WITHOUT STEEL FIBRES

Author(s): R. Deeb, S. Kulasegaram and B. L. Karihaloo
Paper category: Proceeding
Book title: Design, Performance and Use of Self-Consolidating Concrete
Editor(s): Caijun Shi, Zhihua Ou and Kamal Henri Khayat
Print-ISBN: 978-2-35158-143-8
e-ISBN: 978-2-35158-144-5
Publisher: RILEM Publications SARL
Publication year: 2014
Pages: 31
Total Pages : 1
Language : English

Abstract: A three-dimensional Lagrangian smooth particle hydrodynamics (SPH) method has been used to model the flow of self-compacting concrete (SCC) with and without fibres. The constitutive behaviour of this non-Newtonian viscous fluid is described by a Bingham-type model. The 3D simulation of SCC without fibres is focused on the distribution of large aggregates (larger than or equal to 8 mm) during the flow. The simulation of self-compacting high- and ultra-high- performance concrete containing short steel fibres is focused on the distribution of fibres and their orientation during the flow. A novel computational algorithm is introduced and combined with the numerical solution procedures to model heavier aggregates and steel fibres. The numerical simulations of SCC flow in two different geometrical configurations were carried out; the slump cone and L-box. The simulation results show that the fibres and/or heavier aggregates do not precipitate but remain homogeneously distributed in the mix throughout the flow.

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