Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2022 / V.34,no.3,Sept Title Effect of Unidirectional Carbon Fiber Sheet Manufacturing Process Using Coated Glass Fiber and Carbon Fiber on Concrete Reinforcement Authors Jieun Kwon, Sunmin Kwon, Seehyeon Chae, Yedam Jeong, and Jongwon Kim Institution/Affiliations Yeungnam University Pages/Total page pp.185 ~ 196 / 12 Language Korean Abstract In this study, carbon fiber and coated glass fiber are applied to warp and weft fiber in order to reduce the amount of carbon fiber used in carbon fiber fabrics, which are often used for reinforcement of building structures. A low-cost thermoplastic resin was coated on glass fibers to prepare a shape-stabilizing glass fiber. A unidirectional carbon fiber sheet was manufactured using the prepared coated glass fiber and carbon fiber. In order to identify whether it can be used for reinforcing architectural and civil structures, it was attached to a concrete specimen and its mechanical properties were analyzed. The optimum manufacturing conditions for the coated glass fiber were 0.3 mm in diameter of the coating nozzle, the coating temperature was 190 ℃, and the coating speed was 0.3 m/s. 14 mm was optimal for the weft spacing of the coated glass fiber. The flexural strength of the concrete reinforced with the manufactured unidirectional carbon fiber sheet was slightly lower than that of the concrete reinforced with carbon fiber fabric, but it was confirmed that the reinforcement effect was better when the amount of carbon fiber was considered. Keywords coated glass fiber, carbon fiber, unidirectional carbon fiber sheet, reinforced concrete, flexural strength Download   Reference http://koreascience.or.kr/journal/OSGGBT/v34n3.page