抄録
Application of high-strength fibre rods as reinforcement for concrete structures in order to improve durability, strength, and electromagnetic characteristic is actively studied. In this paper, the authors examine the flexural crack behaviour of concrete specimens reinforced with braided carbon fibre rods or braided aramid fibre rods subjected to uniaxial tension and flexure. The test results demonstrated that the method to estimate the maximum crack width as proposed for steel reinforcement could be applied to the fibre rods, if the average strain of fibre rods considering tension stiffening effect and the average crack-spacing as a function of the average strain of fibre rods were obtained.
