Repair of Highway Bridge Damaged by Chloride Attack in Marine Environment(l) - Investigation/Diagnosis and Repair

해상에 위치한 고속도로교량에 대한 내염보수 공법 적용(1) - 염해조사 및 보수계획

Corrosion of reinforced concrete structures in marine environment is one of the most important mechanism of deterioration. The conventional repair techniques of concrete structure damaged by chloride attack consist of removing damaged concrete, cleaning rebar and patching with cement-based materials. However, recently, this method was considered to be ineffective for marine concrete structure in tidal zone. It is necessary to select proper repair method for domestic marine environment which shows broad tidal zone. This paper reports the results of repair of highway concrete bridge damaged by chloride attack in domestic marine environment.