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Title |
Estimation of Carbonation and Service Life of Box Culvert for Power Transmission Line
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Keywords |
몬테카를로 시뮬레이션 기법 ; 박스형 전력구 ; 탄산화 ; 사용 수명 ; 콘크리트 피복 ; Monte Carlo simulation ; Box culvert ; Carbonation ; Service life ; Concrete cover |
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Abstract |
The construction of underground structures such as box culverts for electric power transmission is increasing more and more, and the life extension of these structures is very important. Carbonation-induced corrosion in concrete may often occur in a high carbon dioxide environment. In this study, the risk of carbonation of two concrete box culverts in an urban area was evaluated by measuring the carbonation rate and concrete cover depth. Then, the carbonation-free service life at the depth of the steel was calculated, based on in situ information, by the Monte Carlo simulation. The service life of box culvert due to carbonation was estimated over 250 years via Monte Carlo simulation.
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