RESEARCH OF MODERN TECHNOLOGIES OF CONCRETE EVAPORATION

Abstract

The research examines modern aspects of heat treatment of concrete and reinforced concrete products as one of the key processes in the production of building materials. The importance of implementing energy-saving technologies with the aim of reducing energy resource consumption and increasing production productivity is emphasized. It is shown that heat treatment contributes to a significant acceleration of concrete hardening, which, in turn, allows to increase the volume of production and reduce operating costs due to the rational use of forms and materials.

The influence of temperature and humidity conditions on the dynamics of concrete hardening is analyzed. It is established that optimizing the temperature regime allows to achieve the brand strength of concrete in a much shorter time. Special attention is paid to the technological features of laying and hardening of concrete in the cold season, which requires special measures to prevent freezing of fresh concrete.

Modern methods of accelerating the hardening process are considered, among which steam treatment (steaming) is highlighted as the most universal and effective technology. The classification of heat-moisture treatment methods by type of coolant is presented and a detailed analysis of the features of autoclave steaming is carried out. The principles of operation of autoclave installations are described, design solutions for ensuring tightness, uniform temperature distribution, as well as measures to increase the energy efficiency of systems.

The design scheme of the autoclave installation was selected, which is characterized by the use of aerodynamic heating, heat energy utilization and improved systems for regulating the thermo-humidity regime. The expediency of further mathematical modeling of heat treatment processes in an autoclave to determine optimal technological parameters and search for ways to improve existing installations is justified.