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GFRP reinforced concrete : environmental and movement characteristics

By Sultan Al-Salem

Abstract

For the last few decades, research has been conducted in order to come over the problem of corrosion in steel reinforced concrete. Consequently, methods such as\ud cathodic protection, epoxy coatings, concrete additives, etc., have been tried. Unfortunately, non of these methods has totally solved the corrosion problem. The outstanding characteristics of fibre reinforced plastic (FRP) suggest that these materials may be the solution to the problem of steel corrosion. It is believed that the widespread\ud application of glass fibre reinforced plastic (GFRP) reinforcement faces some challenges such as lack of design codes, brittle behaviour of FRP resulting in reduced structural ductility, low bond capacity to concrete, and lack of knowledge of durability issues and long-term behaviour of concrete reinforced with composite reinforcement. In this investigation, some properties of GFRP rebars were investigated, namely flexural and compressive characteristics, bond strength with concrete with different concrete strengths, and micro-structural features such as porosity and pore size distribution using mercuryi ntrusion porosimetry( MIP), together with observations of the micro-structure of the material under the scanning electron microscopy (SEM).\ud Moreover, monitoring of changes in both the flexural characteristics and the microstructure of the material under high alkalinity and salinity solutions at high and moderate temperatures for different periods of aging up to 270 days were carried out. The results suggested that bond strength increased with high concrete strength, and alkalinity at high temperature(i . e. 60°C) was the most damaging medium.\ud \ud Furthermore,the influence of GFRP and steel rebars with different reinforcement ratios on elastic modulus and creep in compression, and drying shrinkage of concrete with and without SRA were considered and compared to concrete specimens with no reinforcement. Finally, a comparison between theoretical values and experimental measurements of elastic modulus, creep and drying shrinkage was made. The use of GFRP reduced the movement restraint due to low stiffness. Therefore, movements are greater for GFRP reinforced concrete than for steel reinforced concrete. Also SRA reduced compressive strength, creep, drying shrinkage and elastic modulus. Hence, concrete cracking is either avoided or delayed and reduced

Publisher: School of Civil Engineering (Leeds)
Year: 2004
OAI identifier: oai:etheses.whiterose.ac.uk:197

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Citations

  1. (1970). A Mercury Porosimetry Study of Evaluation of Porosity in Portland Cement", doi
  2. (1921). A Method of Determining the Distribution of Pore Sizes in a Porous Material", doi
  3. (1999). A New Look at the Problem of Drying Creep of Concrete under Tension", doi
  4. (1954). A Preliminary Investigation of the Use of Fibreglass for Prestressed Concrete", doi
  5. (1993). Aberfeldy Bridge - an Advanced textile Reinforced Footbridge", TechTextil Symposium,
  6. (1984). Absorption of Water by Immersion Under Vacuum",
  7. (1999). Accelerated and Natural Weathering of Glass Fibre Reinforced Plastic Bars", Poceedings of the 4`h International Fibre Reinforced Plastics Reinforcing Concrete Structures FRPRCS-4,
  8. (1972). Accelerated Determination of creep of Lightweight Aggregate Concrete by the Use of Elevated Temperature",
  9. (1973). Accelerated Determination of Creep of Lightweight Aggregate Concrete",
  10. (1998). Accelerated durability of FRP Reinforcement for Concrete Structures", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction, doi
  11. (1998). Acceleration of FRP Bond Degradation", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction,
  12. (1997). Aging for Fibre Reinforcement in Concrete", Non-Metallic (FRP) Reinforcement for Concrete Structures,
  13. (1997). Aging of Structural Composites Under Varying Environmental Conditions", Non-metallic (FRP) Reinforcement for Concrete Structures,
  14. (2001). Alkali Resistance of Fibres, FRP Rods and Epoxy Resins", Poceedings of the S`h
  15. (1998). An Experimental Study on the Durability of GFRP Bars"
  16. (1992). An Innovative GlassFibre Composite Rebar for Concrete Structures",
  17. (1993). Anchorages for FRP Reinforcement",
  18. (1998). Behaviour and Ductility of Simple and Continuous FRP Reinforced Beams", doi
  19. (1997). Behaviour of Concrete Beams Doubly Reinforced by FRP bars",
  20. (1990). Bending and Bond Behaviour of Concrete Beams Reinforced with Plastic rebars",
  21. (1993). Bond and Slip of FRP Reinforcing Bars in Concrete", doi
  22. (1997). Bond Behaviour of Deformed GFRP Rebar", doi
  23. (1995). Bond of FRP Reinforcement to Concrete: Experimental Results", doi
  24. (1995). Bond of Hooked Glass Fibre Reinforced Plastic (GFRP) Reinforcing Bars to Concrete".
  25. (1996). Bond Strength and Load Distribution of Composite GFRP Reinforcing Bars in Concrete", doi
  26. (1998). Bond Strength Study of Hollow Composite Rebars with Different Micro Structure",
  27. (2000). Bond to Concrete of FRP Rebars after Cyclic Loading", doi
  28. (1983). British Standards Institution, doi
  29. (1989). Building Code Requirement for Reinforced Concrete (ACI 318M-89)", American Concrete Institute,
  30. (1979). Calcium Deposition on Glass Surface as an Inhibitor to Alkaline Attack", doi
  31. (1997). Cement Chemistry", doi
  32. (1999). Chemical Admixtures for Concrete", E& FN Spon, an imprint of Routledge, London, 3`d edition. doi
  33. (1991). Chemical and Microstructural Changes at Alkali-Resistant Glass Fibre Cement Interfaces", doi
  34. (1992). Chemical Attack on Alkali-resistant Glass Fibres in a Hydrating Cement Matrix: Characterisation of Corrosion Products", doi
  35. (1983). Chemical Durability of Zr02 Containing Glasses", doi
  36. (1976). Chemical Interactions Between Glass Fibres and Cement", doi
  37. (1998). Chemistry of Polymer Matrix Resins for Infrastructure, in Fibre Composites in Infrastructure",
  38. (1990). Combining Autopore 9220 Features for Speed and Accuracy,
  39. (2001). Compatibility of Repair Mortars with Concrete in a Hot-dry Environment", doi
  40. (1992). Composite Reinforcing Bars: Assessing their Use in Construction",
  41. (1995). Compressive Behaviour of FRP Reinforcement in Non-prestressed Concrete Members",
  42. (1993). Concrete in Hot Environments" doi
  43. (1993). Concrete Structure, Properties, and Materials",
  44. (1998). Concrete Technology",
  45. (2001). Construction Materials Their Nature and Behaviour", 3'd Edition, doi
  46. (1979). Corrosion Behaviour of a Zr02-containing Glass in Aqueous and Alkaline Media and in a Hydrating cement Paste".
  47. (1997). Corrosion of Steel in Concrete Understanding Investigation and Repair", doi
  48. (1993). Creep and Shrinkage Revisited",
  49. (1995). Creep Fracture of Fibre Reinforced Plastic Rods",
  50. (1970). Creep of Concrete: Plain, Reinforced and Prestressed", doi
  51. (1983). Creep of Plain and Structural Concrete", Longman Group Limited,
  52. (1997). Creep Rupture of FRP Rods Made of Aramid, Carbon and Glass Fibre", Non-metallic (FRP) 252 Reinforcement for Concrete Structures;
  53. (2000). Critical Gaps in Durability Data for FRP Composites in Civil Infrastructure",
  54. (1999). Crystal Structural Microstructural Design of Perovskite Relaxor Ceramics", Ph. D Thesis,
  55. (2000). Deflection Model for Concrete Beams Reinforced by GFRP Bar", doi
  56. (1996). Degradation Kinetics of Glass Reinforced Polyesters in Chemical Environments, Part 1: Aqueous Solutions", doi
  57. (1999). Degradation Mechanism of Fibre Reinforced Plastics and Its Implications to Prediction of Long-term Behaviour",
  58. (1998). Design Durable FRP Reinforced Concrete Structures", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction, doi
  59. (1979). Design of Concrete Structure",
  60. (1996). Deterioration and Stress Rupture of FRP Rods in Alkaline Solution Simulating as Concrete Environment",
  61. (1991). Diffusion in and Through Polymers",
  62. (1989). Diffusion of Water into Silica Glass at Low Temperature", doi
  63. (1996). Digital Images Publication for Backscatter SEM Micrographes",
  64. (1991). Dissolution Rates of Silicate Glasses in Water at pH 7", doi
  65. (1994). Drying Creep of Concrete: Constitutive Model and New Experiments Separating its Mechanisms", doi
  66. (2000). Ductility Design of RC Beams with FR Bars",
  67. (2003). Durability Design of GFRP Rods for Concrete Reinforcement" Poceedings of the 6`h International doi
  68. (1996). Durability of a FRP Grid Reinforcement'
  69. (1999). Durability of AR Glass fibre Reinforced Plastic Bars", doi
  70. (1998). Durability of Composites in Reinforced Concrete", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction, doi
  71. (1994). Durability of Concrete Reinforced with Pultruded Fibre Reinforced Plastic Grating",
  72. (2001). Durability of FRP Reinforcement as Concrete Reinforcement",
  73. (2002). Effect of Aging Environment Degradation of Glass-reinforced Epoxy", doi
  74. (1997). Effect of Environmental Exposure on Fibre-Reinforced Plastic (FRP) Materials Used in Construction", doi
  75. (1998). Effect of High Temperature and Alkaline Solutions on the Durability of GFRP Bars", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction,
  76. (1998). Effect of Resin Material on Bond and Tensile Properties of Unconditioned and Conditioned FRP Reinforcement Rods" Durability of Fibre Reinforced Polymer (FRP) Composites for Construction,
  77. (1996). Effect of Temperature and Fibre Coating on the Strength of E-glass Fibres and E-glass/Epoxy Interface for single Fibre Fragmentation Samples Immersed in Water", Fibre, doi
  78. (1997). Effects of Civil Engineering Environments on Interfacial Properties of Polymer/Glass Fibre Composites",
  79. (2001). Effects of Conditioning Environment on GFRP Bars",
  80. (1998). Effects of FRP Reinforcement Ratio and Concrete Strength on Flexural Behaviour of Concrete Beams", doi
  81. (2002). Effects of GFRP Reinforcing Rebars on Shrinkage and Thermal Stresses in Concrete". doi
  82. (2001). Electron Microscopy of Cement, in Structure and Performance of Cement",
  83. (2001). Engineering and Performance Properties of MetakaolinOPC Concrete",
  84. (1994). Engineering Mechanics of Composite Materials",
  85. (1995). Environmental Degradation of Fibre Reinforced Plastics Materials in Neutral, Acidic and Basic Aqueous Solutions",
  86. (1997). Environmental Durability of E-glassNinyl ester Composites in Hot-moist Conditions",
  87. (1994). Environmental Durability of Glass-fibre Composites", doi
  88. (1998). Environmental Effects on Composite Matrix Resins Used in Construction",
  89. (1981). Environmental Effects on Glass Fibre Reinforced Polyester and Vinyl ester Composites",
  90. (1998). Environmental Effects on the Mechanical Properties of E-Glass FRP Rebars", doi
  91. (1993). Epoxy Socketed Anchors for Non-metallic pressurising Tendons", Fibre-Reinforced-Plastic Reinforcement for
  92. (1975). Estimating Long-term Creep and Shrinkage from Short-term Tests", doi
  93. (1997). Eurocrete-Taking Account of Durability for Design of FRP Reinforced Concrete Structure", Non-Metallic (FRP) Reinforcement for Concrete Structures;
  94. (1999). Evaluation of Bond Using FRP Rods with Axisymmetric Deformations", doi
  95. (1993). Evaluation of FRP as Reinforcement for Concrete Bridges", Fibre-Reinforced-Plastic Reinforcement for doi
  96. (1998). Expansive Admixtures (Mainly Ettringite)", doi
  97. (1995). Expansive Cement Couplers: a Means of Pretensioning Fibre Reinforced Plastic Tendons",
  98. (2000). Experimental and Analytical Study on Unidirectional and Off-axis GFRP Rebars in Concrete", doi
  99. (1999). Fiber-reinforced Plastic Reinforcement for Concrete", doi
  100. (1988). Fibre Reinforced Composites, Materials, Manufacturing, and Design". doi
  101. (1996). Fibre-reinforced Plastic Rebars for Concrete Applications", doi
  102. (1993). Flexural Behaviour and Design of Reinforced Concrete Using FRP Rods",
  103. (1998). Flexural Behaviour of Concrete Beams Reinforced with GFRP Bars", doi
  104. (1993). FRP Reinforcing Bars in Reinforced Concrete Members", doi
  105. (1998). Fundamentals of Polymers",
  106. (1998). General Creep-Time Equation", doi
  107. (1984). Glass Corrosion. A Record of the Past? A predictor of the Future? ",
  108. (1995). Glass Fibre Reinforced Plastics (GFRP) Rebars for Concrete Structures", doi
  109. (1993). Glass FRP Reinforcing Bars for Concrete", Fibre-reinforced Plastic (FRP) Reinforcement for Concrete Structuresproperties and Applications, doi
  110. (1993). Glass-fibre Reinforced Bars", Alternative Materials for the Reinforcement and Prestressing of Concrete, doi
  111. (2001). Guide for the Design and Construction of Concrete Reinforced with FRP Bars (ACI 440.1R-01)", American Concrete Institute, doi
  112. (1991). Guide to Durable Concrete (ACI 201)", doi
  113. (1998). Guide to Short Fibre Reinforced Plastics",
  114. (1998). Improvement of the Durability of FRP Reinforcement for Concrete Structures" Durability of Fibre Reinforced Polymer (FRP) Composites for Construction, doi
  115. (1989). Influence of Mix Proportions, Plasticisers and Superplasticisers on Creep and Drying Shrinkage of Concrete", doi
  116. (1998). Influence of Resin and Temperature on the Interlaminar Shear Fatigue of Glass Fibre Reinforced Composite Rods", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction,
  117. (1993). Influence of Surface Treatments on Durability Performance of Concrete", Ph.
  118. (2001). Influence of the Interfacial Transition Zone (ITZ) on the Properties of Concrete", A. doi
  119. (1995). Interdependence of Creep and Shrinkage for Concrete under Tension", doi
  120. (2001). Interfaces and Interphases",
  121. (1998). Investigation of Bond in Concrete Member with Fibre Reinforced Polymer (FRP) bars", doi
  122. (1988). Kinetics of Non-congruent Dissolution of Eglass Fibre in Saturated Calcium Hydroxide", doi
  123. (1978). Langumir-Type Model for Anomalous Moisture Diffusion in Composite Resins", doi
  124. (1984). Life Estimation of an S Glass/Epoxy Composite Under Sustained Tensile Loading", doi
  125. (1993). Long-Term Behaviour of Prestress Concrete Beams Using Nonmetallic Tendons",
  126. (2000). Long-term Deflection Prediction of Concrete Members Reinforced with Glass Fibre Reinforced Polymer Bars", doi
  127. (2002). Long-Term Deterioration of GFRP in Water and Moist Environment", doi
  128. (1997). Long-term Durability of Glass-fibre Reinforced Polymer Composites in Alkaline Environments", Non-Metallic (FRP) Reinforcement for Concrete Structures,
  129. (1988). Measurement of Chloride Permeability in Superplasticised Ordinary Portland Cement and Pozzolanic Cement Mortars",
  130. (1992). Mechanics of Materials",
  131. (1993). Mercury Porosimetry of Cement-Based Materials and Associated Correction Factors", doi
  132. (1999). Micro- and Macroscopic Characterizations of the Viscoelastic Fracture of Resin-based Fibre Composites", doi
  133. (1990). Model Code 90 for Concrete Structures, doi
  134. (1976). Moisture Absorption and Desorption of Composite Materials", doi
  135. (1998). Network Formation and Properties of Vinylester-Styrene Matrix Resins for Pultruded Composites,
  136. (1996). o British Standards Institution, doi
  137. (1992). Performance of Corrosion Resisting Steel in Chloride-bearing Concrete",
  138. (1999). Performance of Hollow Glass FibreReinforced Polymer Rebars", doi
  139. (2001). Polyester Resins",
  140. (1995). Predection of Deterioration of FRP Rods due to Alkali Attack", Non Metallic (FRP)Reinforcement for Concrete Structures,
  141. (1978). Predicting Long-term Creep and Shrinkage from Short-term Tests", doi
  142. (1992). Prediction of Creep, Shrinkage, and Temperature Effects doi
  143. (1982). Prediction of Creep, Shrinkage, and Temperature Effects in Concrete Structures (ACI 209-82)", American Concrete Institute,
  144. (1998). Properties of Concrete",
  145. (1997). Rational Use of Advanced Composites in Concrete", doi
  146. (1991). Reaction of Alkali-Resistant Glass Fibres with Cement",
  147. (1983). Reaction of Water with Glass: Influence of Transformed Surface Layer", doi
  148. (1975). Reinforced Concrete Structures", doi
  149. (2000). Relaiability Assessment of Pultruded FRP Reinforcements with Embedded Fibre Optic Sensors", doi
  150. (2001). Relevant Field Applications of FRP Composites in Concrete Structures",
  151. (2002). Restrained Shrinkage Cracking of Concrete", doi
  152. (1976). Sea Salts and Alkalinity of Concrete",
  153. (1944). Shape Size and Shrinkage",
  154. (1998). Short and Long-term Performance of ComBAR® GRP Bars as a Structural Element for the Insulation of Thermal Bridges", Durability of Fibre Reinforced Polymer (FRP) Composites for Construction,
  155. (1996). Short Form of Creep and Shrinkage Prediction Model B3 for Structures of Medium Sensitivity", Guidelines for the Formulation of Creep and Shrinkage Prediction Models, doi
  156. (1993). Should FRP be Bonded to Concrete", Non-Metallic Reinforcement and Prestressing, doi
  157. (1998). Single-sided Ultrasonic Technique to Characterise Thick FRP Composites", doi
  158. (1998). Standard Definitions and Terminology of Terms Relating to Reinforced Plastic Pultruded Products". doi
  159. (1996). Standard Test Method for Compression Properties of Rigid Plastics".
  160. (1997). Standard Test Method for Flexural Properties of Fibre Reinforced Pultruded Plastic Rods". doi
  161. (1998). Standard Test Method for Tensile Properties of Pultruded Glass-fibre-reinforced Plastic Rod". doi
  162. (2001). Standards Institution, doi
  163. (1992). State-of-the-Art Report on Bond Under Cyclic Loads (ACI 408-92)", American Concrete Institute, doi
  164. (1996). State-of-the-Art Report on Fibre Reinforced Plastic Reinforcement for Concrete Structure (ACI 440R-96)", American Concrete Institute,
  165. (1995). Static and Fatigue Strength of FRP Rods for Concrete Reinforcement", Non Metallic (FRP) Reinforcement for Concrete Structures, doi
  166. (1990). Steel, Concrete and Composite Bridges: Part 4-Code of Practice for Design of Concrete Bridges", doi
  167. (1998). Steeling Concrete with Fibre Reinforced Plastics",
  168. (1991). Strength, Modulus of Elasticity, and Bond of Deformed FRP Rods",
  169. (1996). Structural Design of Polymer Composites", Edited by Clarke,
  170. (1997). Sustained Load Deflections in GFRP Reinforced Concrete Beams",
  171. (1995). Tensile and Bond Properties of GFRP Reinforcing Bars", doi
  172. (1998). Tensile and Non-destructive Testing of FRP Bars", doi
  173. (1997). Test Method on Creep of Continuous Fibre Reinforcing Materials", Non-metallic (FRP) Reinforcement for Concrete Structures;
  174. (1978). Test of the Bond Strength of Reinforcement of Concrete: Test by Bending", Recommendation
  175. (1991). Testing and Evaluating Fibreglass, Graphite and Steel Cables for Pretensioned Beams".
  176. (1959). Tests on the Influence of the Properties of Cement on the Creep of Mortar", RILEMBull.,
  177. (1986). The Behaviour of Structures Composed of Composite Materials", Martinus Nijhoff Publishers,
  178. (1982). The Diffusion of Liquids into Resins and Composites" doi
  179. (1998). The Effect of Aggregate Type on the Properties of High Performance, High Strength Concrete",
  180. (1942). The Effect of Change in Moisture-content on the Creep of Concrete Under a Sustained Load", doi
  181. (1998). The Effect of Material Degradation on Bond Properties of Fibre Reinforced Plastic Reinforcing Bars in Concrete", doi
  182. (1981). The Effect of Network Structure on Moisture Absorption of Epoxy Resins", doi
  183. (1986). The Mathematics of Diffusion",
  184. (1989). The Performance of Concrete in Bridges",
  185. (1926). The Relationship Between Chemical Composition and the Resistance of Glasses to the Action of Chemical Reagents. Part 1",
  186. (1974). The Role of the Interface in Glass Fibre Reinforced Cement". doi
  187. (1985). The Temperaturedependence of Some Mechanical Properties of a Cured Epoxy resin System", doi
  188. (1990). Thermo-mechanical Properties of Fibre Reinforced Plastic bars",
  189. (1988). Time Effects in Concrete Structures",
  190. (1980). Total Deformation of Loaded Drying Concrete", doi
  191. (2000). Ultrasonic Monitoring of Material Degradation in FRP Composites", doi
  192. (1998). Ultrasonic Techniques to Characterise Pultruded Composite Members", doi
  193. (2002). Understanding Shrinkage and its Effect: Part 1",
  194. (1998). Water at Polymer/Substrate Interface and its Role in the Durability of Polymer/Glass Fibre Composites",

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