Often the causes of structural damage are related to reinforced concrete foundations. Most frequently, it is the incorrect assessment of moisture and water effects on:x Foundations soil and x Concrete of the foundations.Damage of concrete and reinforcement in concrete affects the durability and bearing capacity of foundations. [1922] The problems which may occur on the constructed as well as considerable finances which must be provided for the repairs, indicate that concrete and reinforcement as the material for construction of the reinforced concrete structures should be paid due attention, especially when they are exposed to aggressive environmental effects. [12, 23] It is a trend to attach great importance to the design of concrete mixes with special properties so that they are best suited to the environment in which the structure is located, thus improving the durability of structures [1, 13, 9]. The research indicated the issue of durability of reinforced concrete structures can boil down to the problems of degradation of concrete and reinforcement in concrete. This paper deals with issues of the damage of reinforced concrete as the material used for construction of the foundations in the soil.