FEATURES OF ASSESSMENT OF TECHNOLOGICAL DAMAGE OF CONCRETE

The article deals with the issue of obtaining building materials and equipment with specified quality parameters with reduced material consumption. It is shown that one of the possible ways to reduce the material density of structural building materials is the use of fillers. In this article, considering concrete as a structural material, it is stated that it is the formation of the structure or product that is difficult to control its quantitative and qualitative parameters, but it is practically possible only after receiving the finished product or structure. Properties of the structure are determined as individual properties of all subsystems (concrete, reinforcement), and changes in these properties during structural interactions. In turn, the construction material (concrete) is a subsystem that consists of characteristic structural inhomogeneities. Since the composition of concrete affects the structure, strength characteristics and deformable properties of reinforced concrete structures operating under the influence of external influences, there is a need for a more thorough study of it and the determination of optimal components in order to ensure the operational reliability of structures. During the technological processing of concrete into products, at all levels of structural in homogeneities in the material, technological cracks appear, which, being the structural parameters of concrete, determine the damage of structures, and thus their operational reliability. Research has established that technological damage significantly affects the strength and deformation properties of concrete.