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Title |
Experimental Investigation on the Epoxy Reinforcing Capacity of Concrete Blocks Subjected to Horizontal Loads
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Authors |
최진우(Jin-Woo Choi) ; 정진희(Jin-Hee Chung) ; 김선희(Sun-Hee Kim) |
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DOI |
https://doi.org/10.11112/jksmi.2026.30.2.33 |
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Keywords |
앵커; 교량받침 교체; 콘크리트 블록; 에폭시; 수평하중 Anchor; Bridge bearing replacement; Concrete block; Epoxy; Horizontal load |
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Abstract |
This study forms part of the development process of a new bridge bearing replacement method intended to overcome the limitations of conventional replacement techniques that require demolition of the existing bearing pedestal. In this research, the strengthening performance of epoxy under horizontal loading was experimentally evaluated when cracks developed in concrete blocks due to aging. Specimens were fabricated by installing reinforcing plates within the concrete blocks to enable installation of bridge bearing structural components, and internal voids were filled using epoxy injection. The experimental variables included the presence of cracks and the number of epoxy injection cycles. Horizontal loads were applied to examine structural behavior and failure modes. The experimental results indicated that the epoxy-repaired bearing pedestals exhibited approximately 1.2% higher strength than the undamaged specimen. Furthermore, complete crack filling was achieved when epoxy injection was performed twice.
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