Authors : L. Aruova, K. Bissenov, N. Dauzhanov, A. Utkelbaeva, K. Baitassov, G. Karshyga and R. Karshygaev
Abstract: Solar energy is a-virtually unlimited source whose power on the Earth’s surface is estimated at 20 kWh. This is >100 times higher than the predicted values of electric power required for the planet as a whole at the level of 2000; use of this huge energy source is not associated with any environmental pollution. Today, in the face of increasing limitations onnot-reproducible energy resources, complexity appreciation of their production attaches great importance to the use of solar energy. Precast concrete industry is a major consumer of thermal energy and the most energy-intensive technological conversion which consumes >70% of energy, heat treatment products. Among the conditions used in the dry hot climate the heat treatment method of the concrete, the most rational method is solar thermal processing which in recent years has been developed and put into production as an-effective method of heat treatment of concrete products using solar energy in open workshops and polygons as solar thermal processing them using translucent insulating coatings including helio-forma with heat storage elements-helio warming using special film-forming compositions. With the advent of combined methods, solar thermal processing is possible year-round use of solar energy for thermal processing of concrete and reinforced concrete. Methods of heat treatment with the use of solar energy are developed in the factories of precast concrete which until recently was used only steam heating. The variety of ways solar thermal processing provides optimal and economical choice for heating this type of design with minimal costs. Solar technology in concrete production increases energy efficiency during acceleration of concrete hardening including due to the manifestation of the internal power exo-therm cement and soft modes of heating and cooling products contribute to obtaining high-quality finished products. Thus, our studies have shown that the use of solar energy is a promising method of heat treatment of concrete in a dry hot climate the possibility of which has not yet been exhausted. Today, broad investigations which would develop methods solar thermal processing develop new and facilitate their implementation in production. The technology of production of precast concrete by using Solar energy in Kazakhstan.
L. Aruova, K. Bissenov, N. Dauzhanov, A. Utkelbaeva, K. Baitassov, G. Karshyga and R. Karshygaev, 2021. The Technology of Production of Precast Concrete by using Solar Energy in Kazakhstan. Research Journal of Applied Sciences, 16: 142-156.