Factors influencing the intensity of wear and tear of concrete and reinforced concrete structures of hydraulic facilities

The peculiarity of special-purpose hydraulic engineering facilities significantly increases the importance of the wrong choice of materials associated with an underestimation of the existing loads, operating conditions and aging (wear) processes as a result of interaction with accumulation and storage of products. The intensity of the degradation process is connected with the action of force factors, physical fields, chemicals, living organisms, etc. Therefore, the most important factor determining the durability of an object is the rate of degradation of its structures. In addition to the analytical and numerical approaches, concrete degradation is also considered from the point of view of the stages of its decomposition. The weakest, from the point of view of corrosion, component of concrete is cement stone which determines the intensity of concrete destruction, depending on the mechanism of interaction with an aggressive environment. The constant impact of an aggressive environment on concrete components determines the development of corrosion processes in its very thickness. In the course of corrosion of the concrete material, various mechanisms for the transfer of aggressive substances appear which indicates that during the degradation of building structures made of concrete or reinforced concrete, a complex set of transformations occurs leading to a change in the properties of concrete in structures.

solid waste storage dams, average resource, average service life, estimated service life, durability, failures, degradation, durability assessment, dehydration of cement stone, diffusion coefficient, corrosion of concrete, sorption properties of concrete

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