A series of tests on the bond characteristics between new and old concrete were carried out. Main test variables are type and amount of mineral admixtures, treatment method of the interface and type of waterstops. The test results showed a slightly increased bond strength when applying mineral admixtures and the interface was treated rough and dry.

• 전세진(아주대학교 건설시스템공학과, 교수) | Jeon, Se-Jin 교신저자
• 조병두(도화엔지니어링 철도부, 사원) | Cho, Byeong-Du
• 김상현(아주대학교 건설교통공학과, 박사과정) | Kim, Sang-Hyun
• 서해근(정회원, 아주대학교 건설교통공학과, 석사과정) | Seo, Hae-Keun