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Title |
Effects of Surface Material of Forms on Durability of Offshore Concrete
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Keywords |
해양콘크리트 ; 염화물 침투시기 ; 표면마감재료 ; 전이영역 Offshore concrete ; Chloride ingress time ; Surface material of forms ; Interfacial transition zone |
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Abstract |
This paper presents an experimental study on the air contents and the chloride penetration in offshore concrete depending on the types of forms. Three types of concretes(plain, MSF, and FA concretes) with four kinds of forms(wood, coating wood, steel, and polypropylene film) were investigated. The test results show that the air contents in the concrete cured with steel and polypropylene forms were higher than those with wood and coating wood forms. The concrete with wood forms has the least air content. The variation of chloride ingress time was large depending on the types of forms on the same concrete, i.e. 13.2, 20.3, and 17.7% for Plain, MSF, and FA concretes, respectively. Consequently, the surface conditions of forms should be considered for design of durable concrete.
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