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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: High Temperature Residual Properties of Externally-Bonded FRP Systems
Author(s): S.K. Foster and L.A. Bisby
Publication: Special Publication
Appears on pages(s): 1235-1252
Keywords: fiber-reinforced polymers; fire; high-temperature residual properties; reinforced concrete; strengthening
Abstract:The use of externally-bonded FRP plates and sheets to strengthen existingreinforced concrete structures is now widely recognized. However, a primary concernthat still discourages the use of FRPs in some cases is their assumed susceptibility tofire. While recent studies have demonstrated that the overall performance ofappropriately designed and insulated FRP-strengthened reinforced concrete membersis satisfactory, the specific behavior of FRP materials at high temperature and afterexposure to high temperature remains largely unknown, particularly for externally-bonded FRP strengthening systems. As a first step in an effort to learn more about thehigh temperature properties of these systems, an initial series of tests is presented tostudy the high temperature residual properties of externally-bonded carbon and glassFRP systems for concrete. Axial tension tests, single-lap bond tests, thermogravimetricanalysis, and differential scanning calorimetry are all used to elucidate hightemperature residual performance. The potential consequences of these initial resultsfor the fire-safe design of FRP-strengthened reinforced concrete members arediscussed.
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