Effectiveness of corrosion protection of reinforced concrete with thermoplastic powder coatings

Abstract. In modern construction, there is a persistent trend of increasing levels of corrosive aggressiveness, which negatively affects the reliability and durability of reinforced concrete buildings and structures. Achieving their effective protection from corrosion under the complex influence of various destructive environmental factors, while considering environmental protection regulations, as well as the economic and technological aspects of sustainable development, determines the focus of scientific research towards the use of innovative, durable protective coatings, among which thermoplastic coatings hold one of the leading positions. When creating such materials, the key feature is ensuring the long-term preservation of the operational characteristics of building products and structures, with the implementation of environmentally safe and economically viable production technologies. A traditional method of protecting construction products and structures from corrosion is the application of liquid paint materials based on organic compounds. The drawback of these materials is the presence of solvents in their composition, which inevitably leads to their emission during production and application, with a corresponding catastrophic impact on the environment. In connection with the tightening of health and environmental safety requirements in the industrial finishing industry, the ecological aspects of the production and use of paint materials, especially regarding the content of volatile organic compounds (VOCs), heavy metals, and other harmful substances, are gaining paramount importance. This emphasizes the expansion of scientific research in the development of protective thermoplastic coatings that meet dual requirements: environmental friendliness and durability