A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fiber reinforced polymers (FRP) have recently been introduced into the construction market in various applications: rebars for concrete reinforcement, tendons for prestressed concrete, bolts for grouted anchors and more. In all the applications, the composite technology is used to produce a material that is as strong as steel, durable- with high resistance to aggressive environment, high strength to weight ratio and easy for handling and installation. Fibers of high properties, such as carbon, glass and Kevlar, are used for this purpose and together with a good polymeric matrix they can meet the above requirements. However, a weak link exists in the system that transfers the loads from the carrying fibers to the surrounding concrete, namely `bond'. In all the applications, the polymeric system at the surface of the rods is the one that transfers the loads between the two; therefore special demands are required from this system. An extensive study has been carried out in the last decade to establish the bond properties of FRP rebars and tendons as well as the load-slip relationship during pullout, effect of rod and tendon configuration on the bond, bond at the anchors and more. Part of this extensive study is covered by a review prepared by Cosenza et al., 1997, hence later data will be presented here. The understanding of these parameters can allow a better design of new FRP materials and accurate prediction of the behavior of reinforced and prestressed concrete members. The following paper presents a state of the art review on bond behavior of FRP rebars and tendons, the parameters affecting the bond with respect to rebars and tendon configuration, external parameters affecting the bond and models for bond behavior. Finally, points where lack of knowledge still exists and need further investigation in the future will be highlighted.
Fiber reinforced polymers (FRP) have recently been introduced into the construction market in various applications: rebars for concrete reinforcement, tendons for prestressed concrete, bolts for grouted anchors and more. In all the applications, the composite technology is used to produce a material that is as strong as steel, durable- with high resistance to aggressive environment, high strength to weight ratio and easy for handling and installation. Fibers of high properties, such as carbon, glass and Kevlar, are used for this purpose and together with a good polymeric matrix they can meet the above requirements. However, a weak link exists in the system that transfers the loads from the carrying fibers to the surrounding concrete, namely `bond'. In all the applications, the polymeric system at the surface of the rods is the one that transfers the loads between the two; therefore special demands are required from this system. An extensive study has been carried out in the last decade to establish the bond properties of FRP rebars and tendons as well as the load-slip relationship during pullout, effect of rod and tendon configuration on the bond, bond at the anchors and more. Part of this extensive study is covered by a review prepared by Cosenza et al., 1997, hence later data will be presented here. The understanding of these parameters can allow a better design of new FRP materials and accurate prediction of the behavior of reinforced and prestressed concrete members. The following paper presents a state of the art review on bond behavior of FRP rebars and tendons, the parameters affecting the bond with respect to rebars and tendon configuration, external parameters affecting the bond and models for bond behavior. Finally, points where lack of knowledge still exists and need further investigation in the future will be highlighted.
Bond to Concrete of FRP Rebars and Tendons
Katz, Amnon (author)
International Workshop on Composites in Construction ; 2001 ; Capri, Italy
Composites in Construction ; 121-129
2001-12-18
Conference paper
Electronic Resource
English
Bond to Concrete of FRP Rebars and Tendons
| British Library Conference Proceedings | 2001
Durability of FRP Rebars and Tendons
| British Library Conference Proceedings | 1997
Bond mechanism of FRP rebars to concrete
| Online Contents | 1999
Bond Performances of FRP Rebars-Reinforced Concrete
| Online Contents | 2007
Bond mechanism of FRP rebars to concrete
| Springer Verlag | 1999