Experimental evaluation of fibre pullout from plain and fibre reinforced concrete

Title: Experimental evaluation of fibre pullout from plain and fibre reinforced concrete
Author(s): I. Markovic, J. C. Walraven, J. G. M. van Mier
Paper category : conference
Book title: International Workshop High Performance Fiber Reinforced Cement Composites
Editor(s): A. E. Naaman and H. W. Reinhardt
Print-ISBN: 2-912143-38-1
e-ISBN: 2912143799
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 419 - 436
Total Pages: 18
Nb references: 7
Language: English

Abstract: In the scope of a larger research project aimed at the development of new hybrid fibre reinforced cement composites with improved tensile strength and ductility, numerous single fibre pullout tests from different concrete matrices were performed. Fibre debonding and pullout have a large influence on the tensile stress - crack opening behaviour of fibre concrete. Both debonding and pullout depend on the quality of the matrix, as well as on the type and quality of the steel fibres, and the applied fibre volume content. All fibre pullout tests were carried out using high strength steel fibres, both straight and with hooked ends. The direction of the fibre with respect to the pullout force was varied as well. Initially, the pullout behaviour from plain matrices was studied. Next, mono and hybrid fibre reinforced mixtures were used as pull-out medium. In addition to this, the w/c ratio of the mixtures, the type and the volume content of cement, as well as the granular composition and the volume content of sand in the concrete mixtures were varied. Fibre pullout tests were used as a simulation of the crack bridging processes, in order to evaluate how the concrete mix composition and the fibre type and orientation should influence it.

Online publication: 2003-04-28
Publication type : abstract_only
Public price (Euros): 0.00