Effect of confinement on high performance fiber reinforced cement composite

Title: Effect of confinement on high performance fiber reinforced cement composite
Author(s): J. F. Berthet, E. Ferrier, P. Hamelin
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: 133 - 144
Total Pages: 12
Nb references: 8
Language: English

Abstract: This paper presents an experimental study about the compressive behavior of concrete short columns externally confined by carbon and E-glass FRP jackets. The influences of different parameters such as the confinement level, the jackets characteristics and the compressive strength of the concrete core were studied. The results show that external confinement permits to significantly enhance the ultimate strength and ductility of the specimens. The stress-strain response of confined concrete is bilinear: in the first part, the behavior of reinforced specimens is similar to that of unconfined concrete whereas the second part, plastic, mainly depends on the jacket mechanical properties. The plastic response depends on the jacket stiffness while the ultimate strengths of the jacket and the concrete core strength determine the ultimate strengths and strains of confined concrete. Also, a light decrease of the confinement efficiency is shown with the compressive strength of the concrete core. Finaly, in a last part, the influences of the jacket properties notably of it ultimate strain on the ductility of HPC cylinders is demonstrated.

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