Modelling of Factors Affecting Bond Strength of Fibre Reinforced Polymer Externally Bonded to Timber and Concrete

Publisher:
World Academy of Science, Engineering and Technology
Publication Type:
Journal Article
Citation:
International Journal of Structural and Construction Engineering, 2017, 4 (12)
Issue Date:
2017-12-18
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Modelling of Factors Affecting Bond Strength of Fibre Reinforced Polymer Externally Bonded to Timber and Concrete.pdfAccepted Manuscript Version1.07 MB
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acceptance.pdfAccepted Manuscript Version842.56 kB
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Abstract.pdfAccepted Manuscript Version29.77 kB
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In recent years, fibre reinforced polymers as applications of strengthening materials have received significant attention by civil engineers and environmentalists because of their excellent characteristics. Currently, these composites have become a mainstream technology for strengthening of infrastructures such as steel, concrete and more recently, timber and masonry structures. However, debonding is identified as the main problem which limits the full utilisation of the FRP material. In this paper, a preliminary analysis of factors affecting bond strength of FRP-to-concrete and timber bonded interface has been conducted. A novel theoretical method through regression analysis has been established to evaluate these factors. Results of proposed model are then assessed with results of pull-out tests, and satisfactory comparisons are achieved when measured failure loads compared against of predicted loads.
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