FRP REINFORCEMENTS IN STRUCTURAL CONCRETE: ASSESSMENT, PROGRESS AND PROSPECTS

摘要

Key technical issues regarding the use of FRP reinforcements are reviewed, and assessment of the state of progress made. They include ductility in bending, shear resistance, dowel resistance, and a brief discussion related to fire, heat and durability. It is observed that technical problems can all be resolved, but each at a significant increase in cost. This adds to the already high cost of FRP reinforcements in comparison to steel, discouraging their use except for very special applications. However, in thin concrete products and laminated cementitious composites, FRP reinforcements in the form of meshes, textiles or fabrics are not only competitive on a technical basis but also on a cost basis. Recommendations for use of FRP reinforcements in cost-effective applications are made.