| Carbon Fiber Reinforced Plastics tendons is a kind of new-type composite that offers significant advantages over conventional reinforcing, namely, high tensile strength to weight ratio, excellent corrosion resistance, high fatigue strength and nonmagnetic. As a result, replacing steel bar with CFRP in reinforcement concrete may effectively overcome corrosion of steel tendon and increase structural durability.This paper describes a series of experiments about the CFRP tendons produced by a factory in Nanjing. The experiment includes four parts. In the first part, we researched the anchorage system of CFRP and made a kind of new-type wedge anchor. On base of that we test the tensile property and shear property of CFRP tendons, get the tensile strength and shear strength. In the second parts, we tested the bond characteristic of the CFRP tendons with concrete, epoxy resin and cement grout and got the bond strength correspondingly. Base on these data, we suggested that the basic anchoring length was 25 times of CFRP diameter. At last, we researched the bending strength of CFRP tendon concrete beams, analyzed the function of bearing, deflection and crack of the beams, corrected coefficient of inertial moment in flexibility formular.The conclusion of the paper is about the enwinding type of CFRP tendons we studied, but the interrelated study methods, some conclusion, advice and formula can be consulted in similar researches. In the latter research about the application of CFRP tendons in concrete structures, this paper will give some basic advice.
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