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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Material Characterization of FRP Pre-Cured Laminates Used in theMechanically Fastened FRPStrengthening of RC Structures
Author(s): A. Rizzo, N. Galati, A. Nanni, and L.R. Dharani
Publication: Special Publication
Appears on pages(s): 135-152
Keywords: flexural strengthening; material characterization;mechanically fastened FRP pre-cured laminates
Abstract:The Mechanically Fastened-FRP (MF-FRP) strengthening system consists ofpre-cured FRP laminates having high longitudinal bearing strength attached to theconcrete surface using closely spaced steel fasteners in the form of nails or concretewedge anchors. The connection depends on several parameters such as, the intrinsiclaminates properties (tensile and bearing strength), diameter and effective embedmentlength of the fasteners, clamping force, presence and type of washer, presence andtype of filler in the gaps between the FRP material, the fastener and accessories, andthe concrete. This paper focuses on the material characterization of pultruded pre-cured laminate which was used as MF-FRP strengthening to retrofit and rehabilitate off-system bridges in Missouri, USA. Tensile tests, in the longitudinal and transversedirection of the laminate, were performed on full section and open hole coupons inorder to characterize the material. Bearing tests, in the longitudinal and transversedirection of the laminate, were performed to determine the capacity of the unrestrainedfastener-FRP-concrete connection.
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