INFLUENCE OF TECHNOLOGICAL FACTORS ON THE DURABILITY OF CONCRETE STRUCTURES OF THE AGRO-INDUSTRIAL COMPLEX

Abstract

The article investigates the influence of technological factors on the durability and operational reliability of concrete structures used in the agro-industrial complex. The study is aimed at identifying the most significant technological parameters that determine the formation of the concrete structure and affect its long-term performance under adverse operating conditions. The operational features of concrete and reinforced concrete structures exposed to high humidity, aggressive organic substances, cyclic temperature variations, dynamic actions, and mechanical loads characteristic of agricultural facilities are analyzed. Such conditions accelerate the deterioration of construction materials and require the application of advanced technologies to ensure the required durability of structures.

The main technological factors influencing the physical-mechanical properties of concrete are considered, including the water-cement ratio, compaction intensity, vibration modes, heat treatment parameters, and curing conditions. Particular attention is paid to the formation of the cement stone structure and the development of the contact zone between aggregate particles and the cement matrix. The relationship between technological processing parameters and the resulting density, strength, water resistance, frost resistance, and crack resistance of concrete is established.

Special attention is devoted to the application of a complex thermoforce hardening technology that combines heating, compaction, and cyclic vibration of the concrete mixture. The synergistic effect of these factors contributes to the intensification of hydration processes, more uniform distribution of moisture within the concrete mass, reduction of capillary porosity, and formation of a denser and more homogeneous structure. As a result, the concrete demonstrates improved mechanical characteristics and enhanced resistance to environmental influences.

The feasibility of applying optimized hardening regimes in the production of structures for grain storage facilities, silos, reservoirs, livestock buildings, manure storage facilities, and other agricultural infrastructure objects is substantiated. The obtained results can be used for the development of resource-saving and energy-efficient technologies for manufacturing concrete products, increasing the service life of building structures, reducing maintenance costs, and improving the overall reliability and sustainability of agro-industrial construction facilities.