Effect of Carbonation Threshold Depth on the Initiation Time of Corrosion at the Concrete Durability Design

콘크리트의 내구성 설계시 탄산화 임계깊이가 철근부식 개시시기에 미치는 영향에 관한 연구

The Carbonation, one of the main deterioration factors of concrete, reduces capacity of members with providing rebar corrosion environment. Consequently it suggested standards of all countries of world, carbonation depth prediction equation of respective researchers and time to rebar corrosion initiation. As a result of carbonation depth prediction equation calculation, difference of time to rebar corrosion initiation is 149 years and difference of carbonation depth prediction equation is 162 years when water cement ratio is 50%. So a study on rebar corrosion with carbonation depth will need existing reliable data and verifications by experiment.