This paper presents design concept as well as trial products to develop hybrid reinforcing polymer bars. The objective of this study is to develop a viable hybrid FRP bar for concrete structures, especially for marine and waterfront concrete structures. Three different types of hybrid FRP bar were considered in the development. Using E-glass fibers, unsaturated polyester resins, and conventional steel bar, hybrid GFRP bar samples of 9 mm and 13 mm in diameter were fabricated as the trial products. The results obtained in the pultrusion process of the trial products are discussed in this paper

• 김형열(한국건설기술연구원 선임연구위원) | Kim, Hyeong Yeol
• 황지헌(한국건설기술연구원 연구원) | Hwang, Ji Hyun
• 박기태(한국건설기술연구원 연구위원) | Park, Ki Tae
• 유영준(한국건설기술연구원 수석연구원) | You, Young Jun
• 이상윤(한국건설기술연구원 전임연구원) | Lee, Sang Yoon