Pipe corrosion
DOI:
https://doi.org/10.3989/ic.1970.v23.i226.3501Abstract
This paper deals with thé corrosion of pipes used in construction. General aspects of pipe corrosion are dealt with, without discussing either the kinetics or detailed phenomena of corrosion. General advise is given on practical measures to avoid as far as possible the development of corrosion, a problem which is both widespread and extremely expensive. The second part of the publication includes a questionnaire containing a number of points, whose ellaboration may serve as starting point for a systematic study on the most likely causes of pipe corrosion. A number of notes or comments are also added to each of the above points. Finally there is an appendix with tables, giving construction specifications data on permissible maxima for harmful ions applicable to mass or reinforced concrete for pipe construction (Law 2 987/1968, of 20-IX-68). This refers to sulphate and chlorate ions which normally may be present in Portland cement and concrete. It is emphasized that these contents should be kept low if the cement or concrete is going to be in contact with iron pipes.
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