In this paper, the mechanical properties of glass fiber reinforced plastic (GFRP) rebar, which has been applied as an concrete reinforcement, and produced carbon fiber reinforced plastic (CFRP) grid were compared to develop a concrete reinforcement material with excellent mechanical properties. In addition, the mechanical properties of CFRP prepared with each molding process were evaluated. Three molding processes were evaluated: prepreg oven bagging, reaction injection molding (RIM), and pultrusion. The tensile strength of the CFRP grid prepared through pultrusion was 2.85GPa, the elastic modulus was 169.81GPa, and the strain was 1.68%, which was 2.85 times better in tensile strength, and 2.83 times better in elastic modulus compared mechanical properties of GFRP rebar. The strain was confirmed to be equivalent to GFRP rebar.

• 김지현(한국탄소산업진흥원) | Ji-Hyun Kim
• 송범근(한국탄소융합기술원) | Bhum-Keun Song Corresponding author
• 민경재(한국탄소산업진흥원) | Kyoung-Jae Min
• 최정철(한국탄소산업진흥원) | Jung-Chul Choi
• 은화성(한국탄소산업진흥원) | Hwa-Seoung Eun
• 정서정(한국탄소산업진흥원) | Seo-Jeong Jeong