Abstract
The strength of interfacial bond between fiber reinforced polymer (FRP) and concrete substrata influences the capacity of FRP-strengthened concrete structure both at ambient and fire conditions. Evaluation of bond strength is a challenging task at elevated temperatures and requires specialized test setup and a complex set of procedures. In this chapter an innovative test setup and procedure for evaluating the FRP-concrete interfacial bond strength at elevated temperature is proposed, wherein double lap shear tests are conducted on concrete blocks strengthened with FRP sheet. The applicability of the procedure is illustrated by testing the concrete prisms strengthened with carbon FRP sheet at four different temperature levels. The results from the test indicated that the bond strength decreases by 35% at temperatures close glass transition temperature of bonding adhesive.
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References
CE Bakis LC Bank VL Brown E Cosenza JF Davalos 2002 Fiber-reinforced polymer composites for construction-state-of-the-art review J Comp Const 6 2 73 87
ACI 440.2R-17 (2017) Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, ACI
Bhatt PP, Kodur VKR, Hawileh R, Al-Nuaimi N, Abdalla J (2019) Effect of temperature induced bond degradation on fire performance of FRP-strengthened concrete beams. In: 7th international colloquium performance, protection & strength structure und. external load. & eve. (PROTECT 2019), Whistler
Bhatt PP (2021) Fire performance of FRP-strengthened concrete flexural members. Ph.D. thesis, Michigan State University, East Lansing
Blontrock H, Taerwe L, Vandevelde P (2000) Fire tests on concrete beams strengthened with fiber composite laminates. In: Third Ph.D. symposium in civil engineering, institute of structural engineering, University of Agricultural Science, Vienna, pp 151–161
B Williams VKR Kodur MF Green LA Bisby 2008 Fire endurance of fiber-reinforced polymer strengthened concrete T-beams ACI Struct J 105 1 60 67
A Ahmed VKR Kodur 2011 The experimental behavior of FRP-strengthened RC beams subjected to design fire exposure Eng Struct 33 7 2201 2211
Firmo JP, Correia JR, França P (2012) Fire behaviour of reinforced concrete beams strengthened with CFRP laminates: protection systems with insulation of the Anchorage Zones. Comp Part B Eng 43(3):1545–1556
JP Firmo JR Correia 2015 Fire behaviour of thermally insulated RC beams strengthened with EBR-CFRP strips: experimental study Comp Struct 122 144 154
TB Carlos JPC Rodrigues RCA Lima de D Dhima 2018 Experimental analysis on flexural behaviour of RC beams strengthened with CFRP laminates and under fire conditions Comp Struct 189 516 528
Blontrock H (2003) Analysis and modeling of the fire resistance of concrete elements with externally bonded FRP reinforcement. Ph.D. thesis, Ghent Univ., Belgium
Klamer EL, Hordijk DA, Janssen HJM (2005) The influence of temperature on the debonding of externally bonded CFRP, ACI: SP 230, pp 1551–1570
ZS Wu K Iwashita S Yagashiro T Ishikawa Y Hamaguchi 2005 Temperature effect on bonding and debonding behavior between FRP sheets and concrete J. Soc Mat Sci Jap 54 5 474 480
JCPH Gamage R Al-Mahaidi MB Wong 2006 Bond characteristics of CFRP plated concrete members under elevated temperatures Comp Struct 75 1–4 199 205
Leone M, Matthys S, Aiello MA (2009) Effect of elevated service temperature on bond between FRP EBR systems and concrete. Comp Part B Eng 40(1):85–93
JP Firmo D Pitta JR Correia C Tiago MRT Arruda 2015 Experimental characterization of the bond between externally bonded reinforcement (EBR) CFRP strips and concrete at elevated temperatures Cem Conc Comp 60 44 54
TB Carlos JPC Rodrigues 2018 Experimental bond behavior of a CFRP strengthening system for concrete elements at elevated temperatures Const Build Mat 193 395 404
VKR Kodur MZ Naser 2020 Structural fire engineering 1 Mc Graw-Hill Professional New York
B Yu VKR Kodur 2014 Effect of high temperature on bond strength of near-surface mounted FRP reinforcement Comp Struct 110 88 97
JF Chen JG Teng 2001 Anchorage strength models for FRP and steel plates bonded to concrete J Struct Eng 127 7 784 791
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The authors wish to acknowledge the support of Structural Technologies LLC and Michigan State University for providing the materials and infrastructure for undertaking this research. Any opinions, findings, conclusions, or recommendations expressed in this paper are those of the author and do not necessarily reflect the views of the sponsoring institutions.
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Bhatt, P.P., Kodur, V.K.R. (2023). Methodologies for Evaluating FRP-Concrete Interfacial Bond Strength at Elevated Temperatures. In: Singh, S.B., Gopalarathnam, M., Kodur, V.K.R., Matsagar, V.A. (eds) Fiber Reinforced Polymeric Materials and Sustainable Structures. Composites Science and Technology . Springer, Singapore. https://doi.org/10.1007/978-981-19-8979-7_2
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DOI: https://doi.org/10.1007/978-981-19-8979-7_2
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