Bond mechanism and bond strength of GFRP bars to concrete: A review

Abstract Glass fiber-reinforced polymer (GFRP) reinforcements are taken as an alternative solution for the deterioration of civil infrastructures. GFRP bars have received increasing attention due to low cost compared to carbon fiber-reinforced polymer (CFRP) bars. Bond characteristic of GFRP bars in concrete is the most critical parameter for implementation of the material to the corrosion-free concrete structures. Unlike steel reinforcement, GFRP materials behave anisotropic, non-homogeneous and linear elastic properties, which may result in different force transfer mechanism between reinforcement and concrete. With the purpose of covering the most valuable contributions regarding bond mechanism in the past work, a comprehensive review focusing on the failure mode and bond strength is carried out in this paper. A database consisted of 682 pullout-test specimens was created to observe the factors affecting bond behavior. Basic relationship between bond strength/slip and factors was analyzed accordingly. In addition, the development of bond degradation under environmental conditions, such as freezing-thawing cycling, wet-dry cycling, alkaline solutions and high temperature was presented thereafter. These environmental influences need to be further investigated.

[1]  Mohamed H. Harajli,et al.  Bond-slip Response of Reinforcing Bars Embedded in Plain and Fiber Concrete , 2002 .

[2]  ChongKu Yi,et al.  Interfacial bond strength of glass fiber reinforced polymer bars in high-strength concrete , 2008 .

[3]  Craig A. Ballinger,et al.  Development of Composites for Civil Engineering , 1991 .

[4]  Hiroshi Shima,et al.  RECOMMENDATION FOR DESIGN AND CONSTRUCTION OF CONCRETE STRUCTURES USING CONTINUOUS FIBER REINFORCING MATERIALS (DESIGN) , 1997 .

[5]  Brahim Benmokrane,et al.  Durability of GFRP bars: a critical review of the literature , 2005 .

[6]  Brahim Benmokrane,et al.  Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars , 2006 .

[7]  R. Okelo,et al.  Bond Strength of Fiber Reinforced Polymer Rebars in Normal Strength Concrete , 2005 .

[8]  C. Roberts-Wollmann,et al.  GLASS FIBER-REINFORCED POLYMER BARS AS TOP MAT REINFORCEMENT FOR BRIDGE DECKS , 2002 .

[9]  Jeung-Hwan Doh,et al.  Effects of structural fibers on bonding mechanism changes in interface between GFRP bar and concrete , 2013 .

[10]  Claude Bédard,et al.  Composite Reinforcing Bars: Assessing Their Use in Construction , 1992 .

[11]  Charles L. Bartholomew,et al.  FRP Reinforcing Bars in Reinforced Concrete Members , 1993 .

[12]  Ragi Aly,et al.  Stress along tensile lap-spliced fibre reinforced polymer reinforcing bars in concrete , 2007 .

[13]  L. C. Bank,et al.  Durability and service lifetime prediction of concrete reinforcing materials , 2006 .

[14]  Ehab El-Salakawy,et al.  Durability of GFRP Bars’ Bond to Concrete under Different Loading and Environmental Conditions , 2011 .

[15]  L J Malvar,et al.  Bond Stress-Slip Characteristics of FRP Rebars , 1994 .

[16]  Abdeldjelil Belarbi,et al.  Flexural durability of FRP bars embedded in fiber-reinforced-concrete , 2013 .

[17]  Roberto Realfonzo,et al.  Analytical modelling of bond between FRP reinforcing bars and concrete , 1995 .

[18]  E. Makitani,et al.  Investigation of Bond in Concrete Member With Fiber Reinforced Plastic Bars , 1993, SP-138: Fiber-Reinforced-Plastic Reinforcement for Concrete Structures - International Symposium.

[19]  Joel Fried,et al.  Polymer Science and Technology , 1995 .

[20]  S. El-Gamal,et al.  Performance of glass fiber reinforced polymer bars under elevated temperatures , 2012 .

[21]  Young Soo Yoon,et al.  Bond Characteristics of Ultra High Performance Concrete , 2010 .

[22]  David Darwin,et al.  Development Length Criteria: Bars Not Confined by Transverse Reinforcement , 1992 .

[23]  Y. Xi,et al.  Fiber-reinforced Polymer Bars Under Freeze-Thaw Cycles and Different Loading Rates , 2007 .

[24]  Jong-Pil Won,et al.  Durability of hybrid FRP reinforcing bars in concrete structures exposed to marine environments , 2013 .

[25]  Xudong Chen,et al.  Effect of different environments on bond strength of glass fiber-reinforced polymer and steel reinforcing bars , 2012 .

[26]  R. Masmoudi,et al.  Long-term bond performance of GFRP bars in concrete under temperature ranging from 20 °C to 80 °C , 2011 .

[27]  R. J. Charles.  The Strength of Silicate Glasses and Some Crystalline Oxides , 2012 .

[28]  Ralejs Tepfers,et al.  A theory of bond applied to overlapped tensile reinforcement splices for deformed bars , 1973 .

[29]  B. Benmokrane,et al.  Durability Gap Analysis for Fiber-Reinforced Polymer Composites in Civil Infrastructure , 2003 .

[30]  Neil G. Thompson,et al.  CORROSION COST AND PREVENTIVE STRATEGIES IN THE UNITED STATES , 2002 .

[31]  Brahim Benmokrane,et al.  Pullout and bond of glass-fibre rods embedded in concrete and cement grout , 1993 .

[32]  Brahim Benmokrane,et al.  Effect of aging on bond of GFRP bars embedded in concrete , 2010 .

[33]  Amnon Katz,et al.  Bond between deformed reinforcement and normal and high-strength concrete with and without fibers , 2010 .

[34]  Brahim Benmokrane,et al.  BOND STRENGTH AND LOAD DISTRIBUTION OF COMPOSITE GFRP REINFORCING BARS IN CONCRETE , 1996 .

[35]  Paul J. Hogg,et al.  Temperature and environmental effects on glass fibre rebar: modulus, strength and interfacial bond strength with concrete , 2005 .

[36]  Xiaoshan Lin,et al.  Evaluation of bond stress-slip models for FRP reinforcing bars in concrete , 2014 .

[37]  E. Saadatmanseh,et al.  Application of Fibre-Composites in Civil Engineering , 1989 .

[38]  Gaetano Manfredi,et al.  EXPERIMENTAL AND ANALYTICAL EVALUATION OF BOND PROPERTIES OF GFRP BARS , 2001 .

[39]  Tarek H. Almusallam,et al.  Effect of harsh environmental conditions on the tensile properties of GFRP bars , 2013 .

[40]  Maria Antonietta Aiello,et al.  Bond performances of FRP rebars-reinforced concrete , 2007 .

[41]  Chan-Gi Park,et al.  Effect of fibers on the bonds between FRP reinforcing bars and high-strength concrete , 2008 .

[42]  Lawrence C. Bank,et al.  Effect of High Temperature on Bond Strength of FRP Rebars , 1999 .

[43]  Hota V. S. GangaRao,et al.  BENDING AND BOND BEHAVIOR OF CONCRETE BEAMS REINFORCED WITH PLASTIC REBARS , 1991 .

[44]  Peng Wang,et al.  Durability of Glass Fiber-Reinforced Polymer Reinforcing Bars in Concrete Environment , 2002 .

[45]  Carol K. Shield,et al.  Development Length of Glass Fiber-Reinforced Polymer Bars in Concrete , 2006 .

[46]  H. Wang,et al.  Ductility characteristics of fiber-reinforced-concrete beams reinforced with FRP rebars , 2011 .

[47]  Young-Jun You,et al.  Short-term durability test for GFRP rods under various environmental conditions , 2008 .

[48]  Young Soo Yoon,et al.  Effect of steel and synthetic fibers on flexural behavior of high-strength concrete beams reinforced with FRP bars , 2012 .

[49]  F. Pacheco-Torgal,et al.  Fibres for enhancing of the bond capacity between GFRP rebar and concrete , 2014 .

[50]  Amnon Katz,et al.  Bond mechanism of FRP rebars to concrete , 1999 .

[51]  C. French.  Durability of concrete structures , 2003 .

[52]  M. A. Pisani,et al.  High temperature effects on concrete members reinforced with GFRP rebars , 2013 .

[53]  Tarek H. Almusallam,et al.  Durability of GFRP Rebars in Concrete Beams under Sustained Loads at Severe Environments , 2006 .

[54]  B. V. Rangan,et al.  LOCAL BOND STRENGTH OF REINFORCING BARS IN NORMAL STRENGTH AND HIGH-STRENGTH CONCRETE (HSC) , 1998 .

[55]  David Darwin,et al.  Bond Strength of High Relative Rib Area Reinforcing Bars , 1998 .

[56]  Hamid Saadatmanesh,et al.  Durability of AR Glass Fiber Reinforced Plastic Bars , 1999 .

[57]  A. Shimizu,et al.  Tensile Strength of Continuous Fiber Bar Under High Temperature , 1993, SP-138: Fiber-Reinforced-Plastic Reinforcement for Concrete Structures - International Symposium.

[58]  Qingduo Hao,et al.  Bond strength of glass fiber reinforced polymer ribbed rebars in normal strength concrete , 2009 .

[59]  Radhouane Masmoudi,et al.  Thermal effects on GFRP rebars: experimental study and analytical analysis , 2010 .

[60]  Brahim Benmokrane,et al.  Durability of GFRP Reinforced Concrete in Field Structures , 2005, SP-230: 7th International Symposium on Fiber-Reinforced (FRP) Polymer Reinforcement for Concrete Structures.

[61]  J. Davalos,et al.  Long-term durability prediction models for GFRP bars in concrete environment , 2012 .

[62]  John E. Breen,et al.  THE STRENGTH OF ANCHOR BARS: A REEVALUATION OF TEST DATA ON DEVELOPMENT LENGTH AND SPLICES , 1977 .

[63]  J. G. Cabrera,et al.  Guide to Durable Concrete ACI 201 . 2 R-01 Reported by ACI Committee 201 , 2001 .

[64]  Antonio Nanni,et al.  THERMAL EFFECTS ON BOND BETWEEN FRP REBARS AND CONCRETE , 2006 .

[65]  C. Shield,et al.  Thermal and mechanical fatigue effects on GFRP rebar-concrete bond , 1997 .

[66]  Fei Yan,et al.  New strategy for anchorage reliability assessment of GFRP bars to concrete using hybrid artificial neural network with genetic algorithm , 2016 .

[67]  Young Soo Yoon,et al.  Local bond-slip response of GFRP rebar in ultra-high-performance fiber-reinforced concrete , 2015 .

[68]  J. Mijovic.  Interplay of Physical and Chemical Aging in Graphite/Epoxy Composites , 1985 .

[69]  T. Fursa,et al.  Using electric response to mechanical impact for evaluating the durability of the GFRP-concrete bond during the freeze-thaw process , 2016 .

[70]  Vitelmo V. Bertero,et al.  Local bond stress-slip relationships of deformed bars under generalized excitations , 1982 .

[71]  Julio F. Davalos,et al.  Accelerated aging tests for evaluations of durability performance of FRP reinforcing bars for concrete structures , 2007 .

[72]  J. Zuo,et al.  Splice Strength of Conventional and High Relative Rib Area Bars in Normal and High-Strength Concrete , 2000 .

[73]  H. Wang,et al.  Bond Durability of FRP Bars Embedded in Fiber-Reinforced Concrete , 2012 .

[74]  J. Sena-Cruz,et al.  Numerical calibration of bond law for GFRP bars embedded in steel fibre-reinforced self-compacting concrete , 2013 .

[75]  F. Micelli,et al.  Durability of FRP rods for concrete structures , 2004 .

[76]  B. Benmokrane,et al.  Investigation of bond in concrete member with fibre reinforced polymer (FRP) bars , 1998 .

[77]  F De Larrard,et al.  EFFECT OF BAR DIAMETER ON THE BOND STRENGTH OF PASSIVE REINFORCEMENT IN HIGH-PERFORMANCE CONCRETE , 1993 .

[78]  Taketo Uomoto,et al.  Use of Fiber Reinforced Polymer Composites as Reinforcing Material for Concrete , 2002 .

[79]  Gaetano Manfredi,et al.  Behavior and Modeling of Bond of FRP Rebars to Concrete , 1997 .

[80]  H Wong,et al.  An experimental study of the mechanical properties of fibre reinforced polymer (FRP) and steel reinforcing bars at elevated temperatures , 2007 .

[81]  Rajan Sen,et al.  Durability of Fiberglass Pretensioned Beams , 1993 .

[82]  Shahriar Quayyum.  Bond behaviour of fibre reinforced polymer (FRP) rebars in concrete , 2010 .

[83]  S. Tao,et al.  Bond of GFRP Rebars to Ordinary-Strength Concrete , 1993, SP-138: Fiber-Reinforced-Plastic Reinforcement for Concrete Structures - International Symposium.

[84]  Antonio De Luca,et al.  Reinforced Concrete with FRP Bars: Mechanics and Design , 2014 .

[85]  Kypros Pilakoutas,et al.  Bond Behavior of Fiber Reinforced Polymer Bars under Direct Pullout Conditions , 2004 .

[86]  Robert J. Frosch,et al.  Bond Strength of Nonmetallic Reinforcing Bars , 2008 .

[87]  Marco Andrea Pisani,et al.  Remarks on bond of GFRP rebars and concrete , 2016 .

[88]  Hyun-Do Yun,et al.  Effect of accelerated freeze–thaw cycling on mechanical properties of hybrid PVA and PE fiber-reinforced strain-hardening cement-based composites (SHCCs) , 2013 .

[89]  P. Gerard,et al.  Transverse Thermal Expansion of FRP Bars Embedded in Concrete , 2005 .

[90]  Atorod Azizinamini,et al.  Bond Performance of Reinforcing Bars Embedded in High-Strength Concrete , 1993 .

[91]  Jong-Pil Won,et al.  The effect of exposure to alkaline solution and water on the strength–porosity relationship of GFRP rebar , 2008 .

[92]  Albert Turon,et al.  Experimental study of bond behaviour between concrete and FRP bars using a pull-out test , 2009 .