Steel profile corrosion resistance in contact with monolithic foam concrete

The study evaluates corrosion resistance of steel profiles in contact with monolithic foam concrete a thickness 5 and 10 mm. There are two types samples: structural ones cold-formed galvanized ones. A visual examination samples exposed to high temperature relative humidity is carried out. made full provides. Metal passivation (formation protective film) occurs due the alkalinity concrete. pH values mixture, experimentally obtained, vary range 12.18 ... 12.36 at all stages behavior. This indicates favorable highly alkaline environment for profile steel.