Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/95773
Author(s): R. M. Guedes
C. M. L. Tavares
A. J. M. Ferreira
Title: Experimental and theoretical study of the creep behavior of GFRP-reinforced polymer concrete
Issue Date: 2004
Abstract: Composite beams made of polymer concrete unreinforced and reinforced with glass fiber plastic bars have been submitted to long-term creep tests in a four point bending set-up at room temperature. Polymer concrete is a kind of concrete where natural aggregates such as silica sand or gravel are binded together with a thermoset resin, such as epoxy. There is no portland cement in polymer concrete. Polymer concrete, like traditional concrete, presents a poor response in tension. Therefore, polymer concrete beams were reinforced in the tension region with pultruded profiles made of polyester resin and glass fibers. In this work it is reported the creep behavior of polymer concrete beams with and without reinforcement. An analytical model was developed to explain the creep experimental results of reinforced beams. The model assumed linear elastic behavior of GFRP rebars and linear viscoelastic behavior of polymer concrete. The theoretical analysis proved to be enough accurate to predict the creep strain of reinforced beams under loads between 15% and 45% of failure load.
Subject: Engenharia dos materiais
Materials engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia dos materiais
Engineering and technology::Materials engineering
URI: https://repositorio-aberto.up.pt/handle/10216/95773
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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