Creep of structural adhesives: an overview

This study is part of a research project that aims to develop a new strategy to apply prestressed Carbon Fibre Reinforced Polymer (CFRP) laminates according to the Near Surface Mounted (NSM) technique for the flexural strengthening of Reinforced Concrete elements. CFRP elements exhibit lower relaxat...

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Bibliographic Details
Main Author: Costa, Inês (author)
Other Authors: Barros, Joaquim A. O. (author)
Format: conferencePaper
Language:eng
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/1822/21567
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/21567
Description
Summary:This study is part of a research project that aims to develop a new strategy to apply prestressed Carbon Fibre Reinforced Polymer (CFRP) laminates according to the Near Surface Mounted (NSM) technique for the flexural strengthening of Reinforced Concrete elements. CFRP elements exhibit lower relaxation than common steel strands and the creep of the bonding agents is, therefore, the most relevant effect to be taken into account in the longterm effectiveness of this strengthening technique. This paper describes an experimental program carried out for the assessment of the creep model that best describes the adhesive selected to be used with the NSM technique in development. From the obtained data it was verified that Burgers model is capable of simulating with high accuracy the creep behaviour of the adopted adhesive.