Study of frost heave tangential force and adhesion under conditions of coating samples freeze to soil

The potential of a new device for measuring the adhesion of coating samples when they freeze to soil and a setup for measuring frost heave tangential forces are examined. Results of a study on determining the adhesion strength of various coatings to the soil, depending on its composition and humidity, are presented. The prospects of using cryophobic polymer coatings to reduce the negative impact of the tangential forces of frost heave are discussed. There is an almost complete lack of information on changes in the adhesion of various coatings to materials used for the construction of transmission line supports. It is shown that a decrease in adhesion can lead to peeling of the coating from the substrate and the termination of its protective function. Testing of the developed devices in laboratory conditions demonstrate their operability and promising application.

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