Precast concrete deck through factory production of precast products can minimize construction method and the traffic congestion and can be effective alternative to conventional cast-in-place. In particular, in the case of precast deck, connection details between precast decks are very important because durability and load-bearing performance of structures is greatly affected by them. so conneciotion details to secure constructability and safety, affordability are very important. In this study, a new connection detail on the precast deck connections are proposed and test results comparison from various parametric experiments would be performed to verify the applicability of the proposed technique.

Based on the study of chloride migration coefficient and hydration heat evolution, it was found that the use of ternary blended cement was effective to achieve desired service life and minimum crack index. On the other hand, a high level of compressive strength is required for marine concrete mix design.