23. The rheological properties of fresh polypropylene fibre reinforced mortar and concrete

Title: 23. The rheological properties of fresh polypropylene fibre reinforced mortar and concrete
Author(s): J. Szwabowski, T. Ponikiewski
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: 309 - 318
Total Pages: 10
Nb references: 9
Language: English

Abstract: The rheological parameters of polypropylene fibre reinforced fresh mortar (PFRFM) and polypropylene fibre reinforced fresh concrete (PFRFC) - yield value g and plastic viscosity h were determined. PFRFM and PFRFC behaves as a Bingham or nonlinear Hershell-Bulkey model. The rheological parameters were determined using two rheometers: one for mortars and the other for concrete mix. In the research, the experimental verification of the influence of: W/C ratio, dosage of superplasticizer (SP), volume fraction of fibres and lengths fibres on the rheological properties of PFRFM and PFRFC were investigated.
The first step in the procedure was a rheological identification of PFRFM and PFRFC, which was completed based on experimental flow curves and acceptance an adequate model and rheological equation. Based on this experimental analysis of composition factors influence on fresh mortar and concrete rheological behaviour was investigated.

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