Affiliation:
1. Penza State University of Architecture and Construction
Abstract
Information is given on the probability of cracking of protective and decorative coatings of cement concrete during operation. The aging process is considered as a random process of changing the cohesive strength of coatings, while the mathematical expectation and standard deviation are presented as a function of some time indicator. The probability of crack formation of coatings in the process of thermal aging and the action of ultraviolet irradiation is estimated. It was found that during the aging process, an exponential decrease in the cohesive strength of coatings and an increase in internal stresses are observed. There is a tendency to increase the probability of coating cracking. Recommendations are given for the selection of paint formulations, coatings based on which are characterized by increased crack resistance.
Publisher
Novosibirsk State University of Architecture and Civil Engineering (Sibstrin)
Subject
General Earth and Planetary Sciences,General Environmental Science
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