Advanced concrete technology for submerged floating tunnels

Abstract

Concrete is the major structural material used in submerged floating tunnels, thus its properties dictate the overall performance of the tunnel system. Concrete structures used in submerged floating tunnels are typically exposed to marine environments, where these structures are consistently in contact with seawater and susceptible to ingress of harmful ions such as chloride, sulfate, and carbonate ions. This talk will introduce the recent progresses of concrete materials engineering technology being developed for use in submerged floating tunnel systems. In particular, the concrete technology being investigated at the Research Center for Smart Submerged Floating Tunnel Systems at KAIST will be discussed.