[논문]Bond Strength of Carbon Fiber Sheet on Concrete Substrate Processed by Vacuum Assisted Resin Transfer Molding

Uddin, N.; Shohel, M.; Vaidya, U.K.; Serrano-Perez, J.C.

doi:10.1163/156855108x345199

Bond Strength of Carbon Fiber Sheet on Concrete Substrate Processed by Vacuum Assisted Resin Transfer Molding 원문보기

Advanced composite materials : the official journal of the Japan Society of Composite Materials and the Korea Society for Composite Materials, v.17 no.3, 2008년, pp.277 - 299

Uddin, N. (Department of Civil and Environmental Engineering, The University of Alabama at Birmingham) , Shohel, M. (Department of Civil and Environmental Engineering, The University of Alabama at Birmingham) , Vaidya, U.K. (Department of Materials Science and Engineering, The University of Alabama at Birmingham) , Serrano-Perez, J.C. (Department of Materials Science and Engineering, The University of Alabama at Birmingham)

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High quality and expedient processing repair methods are necessary to enhance the service life of bridge structures. Deterioration of concrete can occur as a result of structural cracks, corrosion of reinforcement, and freeze.thaw cycles. Cost effective methods with potential for field implementation are necessary to address the issue of the vulnerability of bridge structures and how to repair them. Most infrastructure related applications of fiber-reinforced plastics (FRPs) use traditional hand lay-up technology. The hand lay-up is tedious, labor-intensive and relies upon personnel skill level. An alternative to traditional hand lay-up of FRP for infrastructure applications is Vacuum Assisted Resin Transfer Molding (VARTM). VARTM uses single sided molding technology to infuse resin over fabrics wrapping large structures, such as bridge girders and columns. There is no work currently available in understanding the interface developed, when VARTM processing is adopted to wrap fibers such as carbon and/or glass over concrete structures. This paper investigates the interface formed by carbon fiber processed on to a concrete surface using the VARTM technique. Various surface treatments, including sandblasting, were performed to study the pull-off tensile test to find a potential prepared surface. A single-lap shear test was used to study the bond strength of CFRP fabric/epoxy composite adhered to concrete. Carbon fiber wraps incorporating Sikadur HEX 103C and low viscosity epoxy resin Sikadur 300 were considered in VARTM processing of concrete specimens.

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Bond Strength of Carbon Fiber Sheet on Concrete Substrate Processed by Vacuum Assisted Resin Transfer Molding 원문보기

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