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Bond between near-surface mounted carbon-fiber-reinforced polymer laminate strips and concrete
A strengthening technique based on near-surface mounted (NSM) laminate strips of carbon-fiber-reinforced polymer (CFRP) has been used to increase the load-carrying capacity of concrete by introducing laminate strips into precut grooves on the concrete cover of the elements to be strengthened. To assess the bond behavior of CFRP to concrete, pullout-bending tests have been carried out. The influences of bond length and concrete strength on bond behvior are analyzed. From the results obtained the following conclusions can be pointed out: The nonlinear branch before peak pullout force increased with bond length (L b) . The peak pullout force increased with Lb.The influence of the concrete strength on the pullout behavior was marginal. The bond strength ranged from 13 to 18 MPa, revealed a tendency to decrease with the increase of Lb and was practically insensitive to concrete strength. The ratio between the maximum tensile stress recorded on CFRP and its tensile strength increased with Lb and was independent of concrete strength and the loaded end slip at peak pullout force revealed a linear increasing trend with Lb and an independence of concrete strength.
Bond between near-surface mounted carbon-fiber-reinforced polymer laminate strips and concrete
A strengthening technique based on near-surface mounted (NSM) laminate strips of carbon-fiber-reinforced polymer (CFRP) has been used to increase the load-carrying capacity of concrete by introducing laminate strips into precut grooves on the concrete cover of the elements to be strengthened. To assess the bond behavior of CFRP to concrete, pullout-bending tests have been carried out. The influences of bond length and concrete strength on bond behvior are analyzed. From the results obtained the following conclusions can be pointed out: The nonlinear branch before peak pullout force increased with bond length (L b) . The peak pullout force increased with Lb.The influence of the concrete strength on the pullout behavior was marginal. The bond strength ranged from 13 to 18 MPa, revealed a tendency to decrease with the increase of Lb and was practically insensitive to concrete strength. The ratio between the maximum tensile stress recorded on CFRP and its tensile strength increased with Lb and was independent of concrete strength and the loaded end slip at peak pullout force revealed a linear increasing trend with Lb and an independence of concrete strength.
Bond between near-surface mounted carbon-fiber-reinforced polymer laminate strips and concrete
Die Bindungsfestigkeit zwischen oberflächennah montierten, carbonfaserverstärkten Laminatstreifen und Beton
Sena Cruz, Jose Manuel de (author) / Oliveira de Barros, Joaquim Antonio (author)
Journal of Composites for Construction ; 8 ; 519-527
2004
9 Seiten, 14 Bilder, 4 Tabellen, 37 Quellen
Article (Journal)
English
Bond Between Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Laminate Strips and Concrete
| British Library Online Contents | 2004
Bond Between Near-Surface Mounted Carbon-Fiber-Reinforced Polymer Laminate Strips and Concrete
| Online Contents | 2004
Bond between near-surface mounted carbon-fiber-reinforced polymer laminate strips and concrete
| BASE | 2004
Modeling of bond between near-surface mounted CFRP laminate strips and concrete
| BASE | 2004