• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.11a
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• pp.177-178
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• 2013

Steel structures of the seaside area are naturally led to surface corrosion due to incoming salt. Signature measures for this are to replace steel with steel material with a high corrosion-resistance and to block salt and other deteriorative factors beforehand through finishing work such as surface coating. However, the variety in steel materials, finishing type, and construction methods makes adhesive weight of incoming salt different depending on each type. For this research, measurement results derived from an enhancement experiment on artificial incoming salt adhesive to 4 steel finishing types and 2 material types identified a difference of adhesive weight by each sampler.

• Journal of the Korea Institute of Building Construction
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• v.15 no.2
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• pp.143-151
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• 2015

Many studies have investigated the airborne chlorides that can weaken the overall durability of the concrete structures due to the corrosion of steel materials, but most of the studies have aimed to examine weathering by exposing various construction materials to the actual oceanic environment. However, with the exposure test, it was difficult to find the threshold of precise corrosive amount of airborne chlorides due to diverse deteriorating environmental factors such as ultraviolet ray, acid rain, floating material from industrial pollution as well as airborne chlorides. Therefore, in this study, an airborne chloride simulator was set up, in oder to conduct a corrosion accelerating test for steels coated by five different finishing materials. As results, it was found that the corrosion began to be observed at $0.58{\sim}0.73mg/dm^2$ for no-coated steel, at $7.89{\sim}8.46mg/dm^2$for urethane-coated steel, at $57.95{\sim}69.48mg/dm^2$ for red lead-coated steel, and at $80.73{\sim}89.35mg/dm^2$ for stainless-coated steel, respectively. Hence, these specific data can be considered as the threshold ranges of corrosion for each coating material for steel.