Abstract
This paper presents the results of pullout bond tests on fiber-reinforced polymer (FRP) tendons embedded in cement mortar filled steel tubes. The pullout test program involved four types of FRP bars, three types of grouts, and two types of bond lengths. The experimental results have shown that the pullout behavior of grouted FRP tendons are influenced by the material properties and surface conditioning of the tendon. The bond length, surface geometry and manufacturing of the tendon, grout properties, and anchorage radial stiffness have an effect on the bond strength of the tendon to the grout. An analytical model of bond stress–slip relationships for grouted FRP tendons has been proposed, and its effectiveness to represent the entire bond-slip curve has been demonstrated.
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