ABSTRACT
The physical and mechanical properties of structural materials depend on changes in natural factors, as well as changes in the structure of the surrounding environment caused by pollution of the environment, soil, and water as a result of human activity. The speed of movement of air and water, the penetration of moisture due to soil adhesion, as well as the spread and penetration of harmful substances create the risk of carbination of the concrete structures. These defects may seem innocuous initially, but in the long run can have deleterious effects on its lifecycle performance. Since the problem of determining the service life of a bridge is related to the durability of its elements, the article will consider the rate of carbonation of concrete and its effect on corrosion of reinforcementь as well as a study of the durability of the structure.
