2026-04-18T03:35:56Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/119612024-06-14T08:51:12Zcom_2072_452955com_2072_2054col_2072_453061

00925njm 22002777a 4500 dc Sharaky, Ibrahim Attia author Torres Llinàs, Lluís author Baena Muñoz, Marta author Miàs Oller, Cristina author info:eu-repo/date/embargoEnd/2026-01-01 info:eu-repo/date/embargoEnd/2026-01-01 2013 Near-surface mounted (NSM) fiber reinforced polymer (FRP) reinforcement has proven to be an efficient technique for strengthening concrete members. The bond behavior of the NSM system depends on the bond in the two existing interfaces, while the response in terms of load-slip curves and load capacity may be strongly affected by many other parameters. As a consequence of the variety of factors affecting the bond, different studies into the behavior of NSM FRP reinforcement have been carried out in recent years. In this paper, an experimental study is performed in which the effect of adhesive properties, bar type, bar size, FRP properties, groove geometry and the use of mechanical interlocking on the capacity and bond behavior of a NSM joint is investigated. The failure load, average bond stress, loaded end slip, free end slip, transverse strains (on adhesive and concrete), and the mode of failure for the tested joints are reported and discussed. The results show that the adhesive properties, FRP bar size and bar surface treatment were critical factors in the capacity and mode of failure of the specimens tested The authors acknowledge the support provided by the Spanish Government (Ministerio de Ciencia e Innovacion), Project Ref. BIA2010-20234-C03-02. The first author also acknowledges support from the Generalitat de Catalunya for an FI pre-doctoral Grant, Ref. 2011FI_B 00003 http://hdl.handle.net/10256/11961 Assaigs de materials Materials -- Testing Formigó armat -- Proves Reinforced concrete -- Testing Resistència de materials Strength of materials Esforç i tensió Strains and stresses An experimental study of different factors affecting the bond of NSM FRP bars in concrete