Corrosion phases of structural shapes exposed to the atmosphere

Based on an experimental work exposing structural shapes to Mexico City’s atmosphere, a statistical model defining and relating corrosion phases of such, and based on meteorological information, corrosion speeds and maximum pollutants concentration is shown. Phases of steel structural shapes corrosion are: stabilization of corrosion effect, transition of corrosion effect, meteorology effect, transition of exceeding humidity effect and initial phase or corrosion effect.