Tomohiro Omori
Study on Relationship between Corrosion of The Weathering Steel and Corrosive Environment
Eiji Iwasaki
To attempt the cost reduction of the life cycle, the weathering steel is widely constructed.
If the weathering steel can be used under amount of marine salt is less than 0.05mdd(mg/dm2/day), it is known that the estimation amount of thickness loss is 0.3mm or less after 50 years, and becoming excellent roughly.
But, the important factor for corrosion of weathering steel is marine salt that occur in splash area of seaside.
Moreover, stormwater and condensation of duration, temperature, humidity is different in the part of bridge.
Accordingly, wind vane and anemometer, the marine salt accumulator, temperature, humidity, ACM sensor were used.
And,relationship between corrosive environment and the quantity of corrosion is discussed.
The obtained results in this study is as follows.
The difference of corrosion in each part of the bridge was observed by results of
thermometer, hygrometer, ACM sensor and dry gauze type apparatus, wind direction velocity of the wind.
Please use "previous botton" to return the previous page