Speaker
Carlos Arroyave
(Arroyave Consulting)
Description
After two experiences with the premature failure of the roof of a secondary steel factory, an approach was developed to identify the reasons for the quick failure, and consequent loss of almost one million dollars each time. Problems concerning with the depolarization of the cell Zn/Fe, the design principles to corrosion prevention, the establishment of nests of sulfates and the cycle of acid regeneration, were enough to explain the accelerated directional phenomena. In this work are presented a description of the problem, the findings, a theoretical discussion, and the proposed intervention.
Keywords
Atmospheric corrosion, galvanized steel, nests of sulfates, the cycle of acid regeneration.
Author
Carlos Arroyave
(Arroyave Consulting)