Abstract
Creep in concrete is a complex phenomenon in which many physical and chemical parameters are involved. In this material, not only intrinsic properties can affect the creep behaviour but also external effects such as: humidity and applied stress. When concrete is confined with FRP materials the investigation on its creep behaviour becomes more crucial. An experimental program conducted in the laboratory of the civil engineering department of the University of Sherbrooke attempts to clarify ambiguities of the creep performance of CFRP confined columns. Ongoing investigation shows the promising results expected from the application of CFRP wrapping to circular concrete columns. The main parameters under study are the level of sustained load and the confinement ratio. In the L2MS laboratory, Berthet et al. developed an analytical model to evaluate the ultimate capacity and the stress-strain behaviour of the confined concrete as a function of each material parameter.
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