To Discussion on Development of the Theory of Chemical Corrosion of Brick Masonry

D.Y. Zheldakov’s articles on corrosion of brick masonry, published in the Journal “Construction Materials” in 2018–2019, in which on the basis of research using the method of determination of active ions it is proposed to calculate the durability of the structure according to the strength parameter taking into account the processes of chemical and polythermal destruction are analyzed. Attention is drawn to the fuzzy interpretation of the osmosis process as a mechanism for the movement of ions in the structure under consideration (brick masonry), as well as to the absence of statistical sampling, therefore, representativeness, which gives reason to criticism of the whole theory. It is noted that salt corrosion is one of the many factors affecting the durability of brick masonry, it is not justified why the author considers it the main. This article presents the results of the study of a sample of destroyed brick masonry of the 1960s, showing that neither on the border with cement plaster, nor inside the brick minerals, which according to the author of the articles discussed, should have a destructive effect on the brick: wollastonite, xonotlite, bauxites and gibbsites, are found. It is concluded that against the background of certain and time-tested the most critical factors affecting the durability of bricks, new research, if their findings contradict the known, should be based on a more serious evidentiary theoretical and experimental basis.

G.I. STOROZHENKO, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

(74, Troitskii Highway, Chelyabinsk, 454082, Russian Federation)

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