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Evolution of the Theory of Concrete Strength. From Simple to Complex

Number of journal: №12-2016
Autors:

V.P. SELYAEV
P.V. SELYAEV
E.L. KECHUTKINA

DOI: https://doi.org/10.31659/0585-430X-2016-744-12-70-79
УДК: 691.3

 

AbstractAbout AuthorsReferences
A model of the structure of cement composites based on the principles of the fractal geometry according to which the complex systems of nature consist of parts (fractals), which at each scale level is like the whole, is proposed. It is shown that the classical theory of strength does not reflect the real picture of the resistance of fractal structures to destruction. It is experimentally and theoretically proved that the destruction of cement composites is a multi-level, multi-stage process; under the action of compressive loads, the concrete structure can be destroyed both by cleavage and by cutting; a fractal model more exactly describes the relation between compression and tension, scale effect, dependence of compression strength on the friction coefficient. Deformation diagrams obtained with the use of the software complex “Welle Geotechnik” confirm the discrete-continuous character of the destruction of cement composites under compression
V.P. SELYAEV, Doctor of Sciences (Engineering), Academician of RAACS,
P.V. SELYAEV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
E.L. KECHUTKINA, Engineer National Research N.P.Ogarev

Mordovia State University (68, Bolshevistskaya Street, Saransk, 430005, Republic of Mordovia, Russian Federation)

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