The freezing-thawing damage of concrete structures is difficult to identify quantitatively in field. Therefore in this study, the correlation between rebound hardness values by Schmidt hammer on concrete surface and relative dynamic modulus of elasticity which is the most quantitative measuring method of damage by freezing-thawing are reviewed. The results showed that those two factors have similar decreasing tendency according to development of freezing-thawing degradation.

• 이종석(한국건설기술연구원, 구조융합연구소) | Lee, Jong Suk
• 양능원(한국건설기술연구원, 구조융합연구소) | Yang, Neung won
• 이빛나(한국건설기술연구원, 구조융합연구소) | Lee, Bin na