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밀폐 박스거더형 무도장 내후성강 교량의 부식취약부에 대한 방식대책 연구(1)
송창영 ( Chang Young Song ),이의호 ( Eui Ho Lee ),이제현 ( Jea Hyun Lee ),박현출 ( Hyun Chul Park ),최재석 ( Jae Suk Choi ),노영태 ( Young Tae Noh ) 한국부식방식학회(구 한국부식학회) 2013 Corrosion Science and Technology Vol.12 No.3
In corrosion-sensitive areas of exsisting unpainted weathering steel bridges with closed box girder structures. there are some serious local corrosion problems because of rain water or dew water which can not be solved by exsisting maintenance methods. These problems must be controled technically because of bad. influence on the safety of bridge. This study is the first stage of developing the economic corrosion control manual for these local corrosion problems. Through the injection of tar sealant into the crevice of mock-up equipment, it was prooved that the corrosive sealant can be useful to corrosion control at crevice of corrosion sensitive area.
밀폐 박스거더형 무도장 내후성강 교량의 부식취약부에 대한 방식대책 연구(2)
송창영 ( Chang Young Song ),이의호 ( Eui Ho Lee ),이제현 ( Jea Hyun Lee ),박현출 ( Hyun Chul Park ),최재석 ( Jae Suk Choi ),노영태 ( Young Tae Noh ) 한국부식방식학회(구 한국부식학회) 2013 Corrosion Science and Technology Vol.12 No.4
This study is the second stage of developing the corrosion control technical manual about unpainted weathering steel bridge with closed box girder structures. This paper contains selection of corrosive sealant to apply into crevice of upper flange, injecting test of sealant at mock-up equipment with various condition, evaluation of experiment result. Through the experiment of injection of sealants into crevice of mock-up equipment, it is proved that the tar sealant injecting corrosion control method is useful to protect corrosion at box girder upper flange corroded by remaning rain water with calcium chloride.