Due to its outstanding specific strength, corrosion resistance, and fabrication flexibility, Fiber Reinforced Plastic (FRP) presents considerable potential as an alternative to conventional reinforcement materials in the strengthening and rehabilitation of concrete structures. However, the issue of premature debonding at the FRP–concrete interface poses a critical challenge, significantly affecting the stability and reliability of its strengthening performance. To address this problem, researchers have proposed a variety of connection configurations aimed at mitigating interfacial failure, leading to the development of representative systems such as externally bonded (EB), near-surface mounted (NSM), and hybrid bonded (HB) techniques. This paper systematically reviews the developmental trajectories and structural evolution of these typical FRP connection technologies, compares their differences in load-bearing capacity, interfacial behavior, applicable scenarios, and durability performance, and summarizes key advances in experimental investigations and theoretical developments. The main challenges in mechanistic understanding and standardized application are identified. Finally, future research directions are proposed, including interface regulation, environmental adaptability assessment, and integration into engineering systems. This study provides a comprehensive understanding and forward-looking perspective for advancing the theoretical foundation and practical implementation of FRP connection technologies.
RajakDPagarDMenezesP, et al.Fiber-reinforced polymer composites: manufacturing, properties, and applications. Polymers2019; 11(10): 1667.
2.
WuYLuJ. Preventing debonding at the steel to concrete interface through strain localization. Composites Part B-Engineering2013; 45: 1061–1070.
3.
GuoXXiongCJinZ, et al.A review on mechanical properties of FRP bars subjected to seawater sea sand concrete environmental effects. J Build Eng2022; 58: 105038.
4.
YadavAAl-MazroueiNRamanRS, et al.Surface modification of fibres with silane for enhancing the durability of FRP composites as reinforcement for seawater sea sand concrete (SWSSC): a review. Constr Build Mater2024; 451: 138678.
5.
SubediJBazliMDhunganaS, et al.Sand-coated hybrid FRP tubes for marine applications: bond performance with seawater-sea sand concrete under seawater. Mar Struct2025; 104(Oct): 103872.
6.
SubediJPetsalisABazliM, et al.Low-cycle fatigue bond behaviour between sand-coated hybrid FRP tubes and sustainable seawater sea sand concrete. Int J Fatig2025; 197(Aug): 108947.
7.
Mohammadi GhahsarehFMostofinejadD. Effects of groove angle and pattern on CFRP-to-concrete bond behavior of EBROG joints: comparison of diagonal with longitudinal and transverse grooves. Constr Build Mater2022; 342: 127980.
8.
PanahiMZareeiSAIzadiA. Flexural strengthening of reinforced concrete beams through externally bonded FRP sheets and near surface mounted FRP bars. Case Stud Constr Mater2021; 15: e00601.
9.
Al-Zu’biMFanMAnguilanoL. Near-surface mounted-FRP flexural retrofitting of concrete members using nanomaterial-modified epoxy adhesives. J Build Eng2024; 84: 108549.
10.
LiuY-LHongJ-QDengJ, et al.Structural performance of RC beams strengthened with hybrid bonded CFRP. J Build Eng2024; 88: 109178.
11.
JiangCXiongWFuY, et al.Experimental investigation on shear performance of RC T-beams strengthened with hybrid bonded CFRP strips. Eng Fail Anal2025; 167: 109080.
12.
MinXZhangJLiX, et al.An experimental study on fatigue debonding growth of RC beams strengthened with prestressed CFRP plates. Eng Struct2022; 273(Dec): 115081.
13.
MinXZhangJWangC, et al.Experimental investigation of fatigue debonding growth in FRP-concrete interface. Materials2020; 13(6): 1459.
14.
WangXChengL. Full-range fatigue behavior of NSM CFRP-to-concrete bonded joints. Eng Struct2023; 295: 116812.
15.
ChenCChengL. Fatigue bond characteristics and degradation of near-surface mounted CFRP rods and strips in concrete. J Compos Construct2016; 20(3): 04015066.
16.
FernandesPMGSilvaPMSena-CruzJ. Bond and flexural behavior of concrete elements strengthened with NSM CFRP laminate strips under fatigue loading. Eng Struct2015; 84: 350–361.
17.
ChenCWangXSuiL, et al.Influence of FRP thickness and confining effect on flexural performance of HB-strengthened RC beams. Compos B Eng2019; 161: 55–67.
18.
JiangCXiongWFuY, et al.Experimental study on the interfacial bond behavior between CFRP and concrete using the hybrid bonding technique. Constr Build Mater2024; 419: 135477.
19.
SanginabadiKYazdaniAMostofinejadD, et al.Bond behavior of FRP composites attached to concrete using EBROG method: a state-of-the-art review. Compos Struct2022; 299: 116060.
20.
SiddikaAMamunMAAAlyousefR, et al.Strengthening of reinforced concrete beams by using fiber-reinforced polymer composites: a review. J Build Eng2019; 25: 100798.
21.
De LorenzisLTengJG. Near-surface mounted FRP reinforcement: an emerging technique for strengthening structures. Compos B Eng2007; 38(2): 119–143.
22.
SanginabadiKYazdaniAMostofinejadD, et al.RC members externally strengthened with FRP composites by grooving methods including EBROG and EBRIG: a state-of-the-art review. Constr Build Mater2022; 324: 126662.
23.
KotyniaROllerEMaríA, et al.Efficiency of shear strengthening of RC beams with externally bonded FRP materials – state-of-the-art in the experimental tests. Compos Struct2021; 267: 113891.
24.
DuttaBOjhaJNayakAN. Shear retrofitting of RC beams: a comparative study between externally bonded and deep embedded FRP techniques. Structures2025; 71: 107948.
25.
MostofinejadDMahmoudabadiE. Grooving as alternative method of surface preparation to postpone debonding of FRP laminates in concrete beams. J Compos Construct2010; 14(6): 804–811.
BilottaACeroniFNigroE, et al.Efficiency of CFRP NSM strips and EBR plates for flexural strengthening of RC beams and loading pattern influence. Compos Struct2015; 124: 163–175.
28.
SeoS-YFeoLHuiD. Bond strength of near surface-mounted FRP plate for retrofit of concrete structures. Compos Struct2013; 95: 719–727.
29.
HouCMaGHwangH-J, et al.Retrofitting performance of precast UHPC jackets and NSM GFRP bars in pre-damaged RC columns with deficient lap splices. Eng Struct2024; 320: 118906.
30.
de Sena CruzJMOliveira de BarrosJA. Bond between near-surface mounted carbon-fiber-reinforced polymer laminate strips and concrete. J Compos Construct2004; 8(6): 519–527.
31.
BarrosJAOFortesAS. Flexural strengthening of concrete beams with CFRP laminates bonded into slits. Cement Concr Compos2005; 27(4): 471–480.
32.
De LorenzisLRizzoALa TegolaA. A modified pull-out test for bond of near-surface mounted FRP rods in concrete. Compos B Eng2002; 33(8): 589–603.
33.
EcheverriaMPereraR. Three dimensional nonlinear model of beam tests for bond of near-surface mounted FRP rods in concrete. Compos B Eng2013; 54: 112–124.
34.
BilottaACeroniFNigroE, et al.Strain assessment for the design of NSM FRP systems for the strengthening of RC members. Constr Build Mater2014; 69: 143–158.
35.
MosallamASGhabanNMirnateghiE, et al.Structural evaluation of RC overhang cantilever slab strengthened with FRP near-surface mounted (NSM) composites for bridge applications. Struct Concr2024; 25(2): 1105–1128.
36.
Al-RousanRAL-TahatM. An anchoring groove technique to enhance the bond behavior between heat-damaged concrete and CFRP composites. Buildings2020; 10(12): 232.
ValléeTTannertTMeenaR, et al.Dimensioning method for bolted, adhesively bonded, and hybrid joints involving fibre-reinforced-polymers. Compos B Eng2013; 46: 179–187.
39.
ZhangFGaoLZhangL. Numerical simulation and flexural capacity of hybrid-bonded FRP reinforced concrete beam. Arabian J Sci Eng2023; 48(10): 12845–12858.
40.
WuY-FHuangY. Hybrid bonding of FRP to reinforced concrete structures. J Compos Construct2008; 12(3): 266–273.
41.
SunYLiuWLiX, et al.Theoretical analysis of strain incompatibility and slip in a mechanically anchored FRP composite system. J Compos Construct2022; 26(6): 04022075.
42.
NardoneFLignolaGPProtaA, et al.Modeling of flexural behavior of RC beams strengthened with mechanically fastened FRP strips. Compos Struct2011; 93(8): 1973–1985.
43.
SupianABMSapuanSMZuhriMYM, et al.Hybrid reinforced thermoset polymer composite in energy absorption tube application: a review. Def Technol2018; 14(4): 291–305.
44.
SolimanSMEl-SalakawyEBenmokraneB. Bond performance of near-surface-mounted FRP bars. J Compos Construct2011; 15(1): 103–111.
45.
IovinellaIProtaAMazzottiC. Influence of surface roughness on the bond of FRP laminates to concrete. Constr Build Mater2013; 40: 533–542.
46.
ChenCSuiLXingF, et al.Predicting bond behavior of HB FRP strengthened concrete structures subjected to different confining effects. Compos Struct2018; 187: 212–225.
47.
WuZ-MHuC-HWuY-F, et al.Application of improved hybrid bonded FRP technique to FRP debonding prevention. Constr Build Mater2011; 25(6): 2898–2905.
48.
CodinaATorresLD’AntinoT, et al.Flexural performance of RC beams strengthened with HB CFRP plates: experimental study and theoretical model based on the intermediate crack debonding. Constr Build Mater2025; 458: 139444.
49.
HouCMaGHwangH, et al.Seismic retrofit of intact and damaged RC columns using prefabricated steel cage-reinforced UHPC jackets and NSM GFRP bars. Eng Struct2024; 317: 118665.
50.
ZhouYWangXSuiL, et al.Effect of mechanical fastening pressure on the bond behaviors of hybrid-bonded FRP to concrete interface. Compos Struct2018; 204: 731–744.
51.
Al-SaadiNTKMohammedAAl-MahaidiR. Performance of RC beams rehabilitated with NSM CFRP strips using innovative high-strength self-compacting cementitious adhesive (IHSSC-CA) made with graphene oxide. Compos Struct2017; 160: 392–407.
52.
Al-BayatiGAl-MahaidiRKalfatR. Experimental investigation into the use of NSM FRP to increase the torsional resistance of RC beams using epoxy resins and cement-based adhesives. Constr Build Mater2016; 124: 1153–1164.
53.
AdrianRJ. Particle-imaging techniques for experimental fluid mechanics. Annu Rev Fluid Mech1991; 23(1): 261–304.
54.
HosseiniAMostofinejadDHajialilue-BonabM. Displacement and strain field measurement in steel and RC beams using particle image velocimetry. J Eng Mech2014; 140(11): 04014086.
55.
HosseiniAMostofinejadD. Experimental investigation into bond behavior of CFRP sheets attached to concrete using EBR and EBROG techniques. Compos B Eng2013; 51: 130–139.
56.
HosseiniAMostofinejadD. Effect of groove characteristics on CFRP-to-concrete bond behavior of EBROG joints: experimental study using particle image velocimetry (PIV). Constr Build Mater2013; 49: 364–373.
57.
MostofinejadDShameliSM. Externally bonded reinforcement in grooves (EBRIG) technique to postpone debonding of FRP sheets in strengthened concrete beams. Constr Build Mater2013; 38: 751–758.
58.
MostofinejadDShameliSMHosseiniA. EBROG and EBRIG methods for strengthening of RC beams by FRP sheets. European Journal of Environmental and Civil Engineering2014; 18(6): 652–668.
59.
TatarJMilevS. Durability of externally bonded fiber-reinforced polymer composites in concrete structures: a critical review. Polymers2021; 13(5): 765.
60.
AlwashDKalfatRAl-MahaidiR. Numerical modelling of RC beams strengthened in shear using NSM FRP and cement based adhesives. Structures2023; 57(Nov): 105217.
Al-AbdwaisAAl-MahaidiR. Bond behaviour between NSM CFRP laminate and concrete using modified cement-based adhesive. Constr Build Mater2016; 127: 284–292.
63.
Al-BayatiGAl-MahaidiRKalfatR. Torsional strengthening of reinforced concrete beams using different configurations of NSM FRP with epoxy resins and cement-based adhesives. Compos Struct2017; 168: 569–581.
64.
Al-SaadiNTKMohammedAAl-MahaidiR. Fatigue performance of NSM CFRP strips embedded in concrete using innovative high-strength self-compacting cementitious adhesive (IHSSC-CA) made with graphene oxide. Compos Struct2017; 163: 44–62.
65.
Al-SaadiNTKMohammedAAl-MahaidiR. Assessment of residual strength of concrete girders rehabilitated using NSM CFRP with cementitious adhesive made with graphene oxide after exposure to fatigue loading. Constr Build Mater2017; 153: 402–422.
66.
Al-SaadiNTKMohammedAAl-MahaidiR. Bond performance of NSM CFRP strips embedded in concrete using direct pull-out testing with cementitious adhesive made with graphene oxide. Constr Build Mater2018; 162: 523–533.
67.
Al-Zu’biMFanMAnguilanoL. Advances in bonding agents for retrofitting concrete structures with fibre reinforced polymer materials: a review. Constr Build Mater2022; 330: 127115.
68.
HosenMAJumaatMZAlengaramUJ, et al.CFRP strips for enhancing flexural performance of RC beams by SNSM strengthening technique. Constr Build Mater2018; 165: 28–44.
69.
SabauCPopescuCSasG, et al.Strengthening of RC beams using bottom and side NSM reinforcement. Compos B Eng2018; 149: 82–91.
70.
AbdallahMAl MahmoudFBoissièreR, et al.Experimental study on strengthening of RC beams with side near surface mounted technique-CFRP bars. Compos Struct2020; 234: 111716.
71.
HaddadRHYaghmourEM. Side NSM CFRP strips with different profiles for strengthening reinforced concrete beams. J Build Eng2020; 32: 101772.
72.
BallaTMorthalaRPrakashS. Enhancing flexural performance of reinforced concrete beams using UHPC overlay and external bonding of CFRP composites. Eng Struct2025; 330: 119951.
73.
MorthalaRBallaTPrakashS. Behaviour of reinforced concrete beams shear strengthened with hybrid combination of UHPC and CFRP composites. Structures2025; 74(Apr): 108498.
74.
ZhangXWuZChengY. An approach of steel plate hybrid bonding technique to externally bonded fibre-reinforced polymer strengthening system. Int J Distributed Sens Net2018; 14(6): 155014771878645.
75.
GaoX-HGaoLZhangF. A new bond-slip model of hybrid bonded FRP-to-concrete joints. KSCE J Civ Eng2023; 27(1): 270–284.
76.
YuanXSongYZhengW, et al.Mechanical behavior research on IHB-CFRP anchorage scheme to reinforce the flexural performance of concrete beams. Struct Eng Int2024; 35: 402–416.
77.
De DomenicoDUrsoSBorsellinoC, et al.Bond behavior and ultimate capacity of notched concrete beams with externally-bonded FRP and PBO-FRCM systems under different environmental conditions. Constr Build Mater2020; 265: 121208.
78.
MadaniSAHatamiSFarahbodF, et al.FRP strip wraps for enhancing the fire resistance of RC beams strengthened with CFRP sheets bonded using the EBROG method: an experimental study. Structures2024; 65: 106765.
79.
BaenaMJahaniYTorresL, et al.Flexural performance and end debonding prediction of NSM carbon FRP-strengthened reinforced concrete beams under different service temperatures. Polymers2023; 15(4): 851.
80.
WightRGErkiMA. Prestressed CFRP sheets for strengthening concrete slabs in fatigue. Adv Struct Eng2003; 6(3): 175–182.
81.
BadawiMSoudkiK. Fatigue behavior of RC beams strengthened with NSM CFRP rods. J Compos Construct2009; 13(5): 415–421.
82.
MoshiriNMartinelliEBreveglieriM, et al.Experimental tests and numerical simulations on the mechanical response of RC slabs externally strengthened by passive and prestressed FRP strips. Eng Struct2023; 292: 116559.
83.
ACI PRC-440.2-23: design and construction of externally bonded fiber-reinforced polymer (FRP) systems for strengthening concrete structures -- guide. Farmington Hills, MI: American Concrete Institute, 2023.
84.
MatthysSTriantafillouT and International Federation for Structural Concrete (eds). Externally applied FRP reinforcement for concrete structures: technical report. in Bulletin/International Federation for Structural Concrete, no. 90. Lausanne, Switzerland: Fédération internationale du béton (FIB), 2019.
85.
CorreialLBarrisCFrancaP, et al. Effect of temperature on bond behavior of externally bonded FRP laminates with mechanical end Anchorage. J Compos Construct. 2019; 23(5): 04019036.
86.
MostofinejadDMohammadiM. Effect of freeze–thaw cycles on FRP-concrete bond strength in EBR and EBROG systems. J Compos Construct2020; 24(3): 04020009.
87.
Al-MahmoudFMechlingJ-MShabanM. Bond strength of different strengthening systems – concrete elements under freeze–thaw cycles and salt water immersion exposure. Constr Build Mater2014; 70: 399–409.
88.
MohammadiMMostofinejadD. CFRP-to-concrete bond behavior under aggressive exposure of sewer chamber. J Compos Mater2021; 55(24): 3359–3373.
89.
YunYWuY-FTangWC. Performance of FRP bonding systems under fatigue loading. Eng Struct2008; 30(11): 3129–3140.
90.
YuBKodurVKR. Effect of high temperature on bond strength of near-surface mounted FRP reinforcement. Compos Struct2014; 110: 88–97.
91.
YuBKodurVKR. Fire behavior of concrete T-beams strengthened with near-surface mounted FRP reinforcement. Eng Struct2014; 80: 350–361.
92.
LeeHJungWChungW. Bond behavior of near surface mounted CFRP rods under temperature cycling. Eng Struct2017; 137: 67–75.
93.
EmaraMTorresLBaenaM, et al.Effect of sustained loading and environmental conditions on the creep behavior of an epoxy adhesive for concrete structures strengthened with CFRP laminates. Comp Part B-Eng2017; 129: 88–96.
94.
Al-LamiKColombiPD’AntinoT. Influence of hygrothermal ageing on the mechanical properties of CFRP-concrete joints and of their components. Compos Struct2020; 238(Apr): 111947.
95.
HaoZ-HZengJ-JChenG-M, et al.Durability of FRP-to-concrete bonded joints subjected to 110 months accelerated laboratory and field exposure. Eng Struct2024; 305(Apr): 117681.
96.
YuBKodurV. Effect of temperature on strength and stiffness properties of near-surface mounted FRP reinforcement. Compos B Eng2014; 58: 510–517.
97.
EmaraMTorresLBaenaM, et al.Bond response of NSM CFRP strips in concrete under sustained loading and different temperature and humidity conditions. Compos Struct2018; 192: 1–7.
98.
NardoneFDi LudovicoMDe Caso Y BasaloFJ, et al.Tensile behavior of epoxy based FRP composites under extreme service conditions. Compos B Eng2012; 43(3): 1468–1474.
99.
WangXPetrůM. Freeze-thaw resistance of epoxy/concrete interface evaluated by a novel wedge splitting test. Constr Build Mater2019; 210: 434–441.
100.
FernandesPSena-CruzJXavierJ, et al.Durability of bond in NSM CFRP-concrete systems under different environmental conditions. Comp Part B-Eng2018; 138: 19–34.
101.
LiJMaiZXieJ, et al.Durability of components of FRP-concrete bonded reinforcement systems exposed to chloride environments. Compos Struct2022; 279(Jan): 114697.
102.
MohammadiMMostofinejadDBarghianM. Effects of surface preparation method on FRP-concrete bond strength under alkaline conditions. J Compos Construct2017; 21(4): 04017010.
103.
ChoiK-SLeeDYouY-C, et al.Long-term performance of 15-year-old full-scale RC beams strengthened with EB FRP composites. Compos Struct2022; 299: 116055.
104.
RezazadehMCarvelliV. A damage model for high-cycle fatigue behavior of bond between FRP bar and concrete. Int J Fatig2018; 111: 101–111.
105.
ChenCChengL. Predicting flexural fatigue performance of RC beams strengthened with externally bonded FRP due to FRP debonding. J Bridge Eng2017; 22(11): 04017082.
106.
Al-QarallehMToutanjiH. Analytical life-prediction model for RC beams strengthened with externally bonded FRP laminates under flexural fatigue loading. J Compos Construct2018; 22(6): 06018002.
107.
MinXZhangJLiX, et al.A nonlinear prediction model of the debonding process of an FRP-concrete interface under fatigue loading. Constr Build Mater2023; 369(Mar): 130583.
108.
ZhangWTangZ. Numerical modeling of response of CFRP-concrete interfaces subjected to fatigue loading. J Compos Construct2021; 25(5): 04021043.
109.
FathiAEl-SaikalyGChaallalO. Fatigue behavior in the carbon-fiber-reinforced polymer-to-concrete bond by cyclic pull-out test: experimental and analytical study. J Compos Construct2023; 27(4): 04023033.
110.
OudahFEl-HachaR. Analytical fatigue prediction model of RC beams strengthened in flexure using prestressed FRP reinforcement. Eng Struct2013; 46: 173–183.
111.
WahabNTopperTSoudkiKA. Modelling experimental bond fatigue failures of concrete beams strengthened with NSM CFRP rods. Compos B Eng2015; 70: 113–121.
112.
ChenCChengL. Theoretical solution to fatigue bond stress distribution of NSM FRP reinforcement in concrete. Compos B Eng2016; 99: 453–464.
113.
ChenCChengL. Fatigue life-based design of RC beams strengthened with NSM FRP. Eng Struct2017; 140: 256–266.
114.
EljufoutT. A comparative study on hybrid fatigue stress-life model of RC beams strengthened with NSM CFRP. Mech Base Des Struct Mach2023; 51(12): 6814–6827.
115.
WangXChengL. Degradation of interfacial bond for FRPs near-surface mounted to concrete under fatigue: an analytical approach. Fibers2025; 13(1): 9.
116.
WuY-F. Ultimate strength of reinforced concrete beams retrofitted with hybrid bonded fiber-reinforced polymer. ACI Struct J2010; 107(4): 451.
117.
LiuK.Computational modeling, experimental and theoretical study on bond behaviors of hybrid-bonded FRP strengthened concrete structures. PhD dissertation, City University ofHong Kong, Hong Kong, China; 2011.
118.
GaoLWeiQHuangY, et al.Influence of anchor design parameters on flexural performance of hybrid bonded-fiber reinforced polymer strengthened reinforced concrete beams. Structures2023; 48: 1029–1045.
119.
ChellapandianMPrakashSSSharmaA. Experimental and finite element studies on the flexural behavior of reinforced concrete elements strengthened with hybrid FRP technique. Compos Struct2019; 208: 466–478.
120.
GaoLZhangFLiuJ, et al.Experimental and numerical study on the interfacial bonding characteristics of FRP-to-concrete joints with mechanical fastening. Constr Build Mater2019; 199: 456–470.
121.
OudahFEl-HachaR. Fatigue behavior of RC beams strengthened with prestressed NSM CFRP rods. Compos Struct2012; 94(4): 1333–1342.
122.
MukhtarFLardhiM. Punching shear of sustainable recycled aggregate FRC slabs strengthened with NSM FRP bars. Case Stud Constr Mater2024; 21(Dec): e03468.
123.
McCoyBCBouraraZSeracinoR, et al.Anchor bolt patterns for mechanically fastened FRP plates. J Compos Construct2019; 23(4): 04019024.
124.
SeracinoRJonesNMAliMS, et al.Bond strength of near-surface mounted FRP strip-to-concrete joints. J Compos Construct2007; 11(4): 401–409.
125.
Performance guidelines for design of concrete structures using fibre-reinforced polymer (FRP) materials. 2nd ed.Geneva: International Organization for Standardization, 2020.
126.
M A KadhimMJawdhariAAltaeeMM, et al.Parametric investigation of continuous beams strengthened with near surface mounted FRP bars. Eng Struct2023; 293: 116619.
127.
LiGPangS-SHelmsJE, et al.Durability of FRP strengthened RC beams subjected to hygrothermal and aging attacks. In: Part A: combustion and alternative energy technology; computers in engineering; drilling technology; environmental engineering technology; composite materials design and analysis; manufacturing and services. Houston, Texas, USA: American Society of Mechanical Engineers, 2001, pp. 259–266.
128.
TatarJHamiltonHR. Bond durability factor for externally bonded CFRP systems in concrete structures. J Compos Construct2016; 20(1): 04015027. DOI: 10.1061/(asce)cc.1943-5614.0000587.
129.
ZhouYGouMZhangF, et al.Reinforced concrete beams strengthened with carbon fiber reinforced polymer by friction hybrid bond technique: experimental investigation. Mater Des2013; 50: 130–139.
130.
WahabNSoudkiKATopperT. Mechanics of bond fatigue behavior of concrete beams strengthened with NSM CFRP rods. J Compos Construct2011; 15(6): 934–942.
