89. Influence of FRC mix proportion with low content of short fibres on the crack opening resistance

Title: 89. Influence of FRC mix proportion with low content of short fibres on the crack opening resistance
Author(s): J. Šušteršic, A. Zajc, I. Leskovar, V. Dobnikar
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: 995 - 1001
Total Pages: 7
Nb references: 9
Language: English

Abstract: Low content of short fibres is interesting for the practical applications from two points of view: (1) adding and mixing those fibres are easy, their uniform distribution in the concrete can be reached without balling, and (2) their impact on the price of FRC is not so significant as in the case when "normal" content of fibres (over 0.25 vol.%) is applied. But, it is well-known that low content of short fibres has limited influence on improvement in the performance of hardened FRC. Therefore, the investigations, which results are discussed in this paper, has been carried out with the main purpose to find out an influence of FRC mix proportion with low content of short fibres on the crack opening resistance. Improvement in the crack opening resistance of SFRC and especially hybrid fibre reinforced concrete with low content of short steel and polypropylene fibres was achieved by application of a high-range superplasticizer.

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