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유영준 ( You Young-jun ),박지선 ( Park Ji-sun ),박영환 ( Park Young-hwan ),김긍환 ( Kim Keung-hwan ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.2
This paper presents experimental results for flexural behavior of GFRP reinforced slabs. A total of 16 slabs, classified with 6 groups, were prepared and tested Reference group is steel reinforced slabs according to compressive strength of concrete. GFRP slabs were designed considering same reinforcement ratio, strength, stiffness with the reference slab and different thickness of cover. Though the test results showed the possibility of applying GFRP reinforcement to concrete structures, the way to decrease the reinforcement ratio of GFRP and to satisfy the limit of serviceability should be considered to use GFRP as reinforcement in concrete structures.
다양한 충진재를 사용한 GFRP 복합체의 내구성능 실험
유영준 ( You Young-jun ),박영환 ( Park Young-hwan ),김형열 ( Kim Hyeong-yeol ),문창권 ( Moon Chang Kwon ),이승렬 ( Lee Seong Ryul ) 한국구조물진단유지관리공학회 2006 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.10 No.2
This paper presents experimental results for durability performance of GFRP composite exposed to the alkali solution. Additives used in this study were PVA, kaolin clay, and alumina powder. Temperature was 80℃ for the first test. The condition of second test is the 20℃ alkali and tap water solution for the cases of no additive and PVA. Specimens were immerged up to 30 days and tested for tensile strength for each immersion time. The results indicate that it is important to fill the inner space of GFRP composite densely to avoid the decrease of tensile strength. In this study, PVA showed better performance than other additives.