43. Self compactibility of hybrid fiber concrete containing PVA fibers

Title: 43. Self compactibility of hybrid fiber concrete containing PVA fibers
Author(s): S. Nakamura, J.G.M. van Mier, Y. Masuda
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: 525 - 535
Total Pages: 11
Nb references: 2
Language: English

Abstract: Self-compactibility while fresh properties of hybrid fiber concrete (HFC) containing PVA fibers were investigated using combinations of fibers with different lengths and diameters. According to the results; 1) Short fibers affect the viscosity of the matrix. The viscosity of the matrix increases as the short fiber content increases. 2) A large addition of long fibers in a matrix with a low viscosity causes fiber segregation, but this problem can be solved by adding a certain amount of short fibers to increase the viscosity of the matrix. 3) A method of assessing the fresh properties of HFC using a slump flow diagram was proposed. By the use of this diagram, the fresh properties of HFC can be qualitatively assessed based on the excess matrix film thickness (tm) and segregation factor (sgf) using the long and short fiber contents as the parameters.

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