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21. Fresh cement based composite material rheological behaviour



Title: 21. Fresh cement based composite material rheological behaviour
Author(s): N. Roussel, Z. Toutou, R. Le Roy
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: 289 - 298
Total Pages: 10
Nb references: 15
Language: English


Abstract: Fibre suspensions rheological properties are studied in this work. The fibre introduction, as any additive inclusions whatever its shape, modify the initial fresh material behaviour but, in the case of fibres, as the suspended fibres are slender, their orientation strongly affect the rheological flow properties. A fibre preferred orientation is induced by the flow depending on the fibre geometry and amount and the flow rate. Based on the state of the art in polymer reinforcing, a probabilistic approach is proposed and adapted to cement based materials. A critical fibre concentration concept is introduced and several experimental results validate this new fibre orientation model.


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