Analysis of technological properties of heat-insulating aerated concrete

Authors

  • B. Kodirov Tashkent State Transport University, Tashkent, Uzbekistan Author
  • S. Shaumarov Tashkent State Transport University, Tashkent, Uzbekistan Author
  • Kandakhorov Kandakhorov Tashkent State Transport University, Tashkent, Uzbekistan Author

DOI:

https://doi.org/10.56143/rzhdg549

Keywords:

aerated concrete, thermal insulation, autoclave, porosity, density, thermal conductivity coefficient, industrial waste

Abstract

The article briefly describes the historical development of aerated concrete production technology, modern
methods and the contribution of Uzbek scientists to this field, and also theoretically analyzes the relationship
between the thermal insulation properties of autoclaved aerated concrete and its composition, porous structure
and density. The study compared aerated concrete samples with different compositions (standard, slag and sand
waste variants), analyzed their thermal conductivity coefficient (λ), density (ρ) and strength. According to the
results, the thermal insulation capacity of aerated concrete improved by 12–15% by adding industrial waste, and
the combination of slag and sand waste gave especially optimal indicators. In addition, the fact that the λ value
of aerated concrete is linearly dependent on its density was expressed through the mathematical model (λ = f(ρ)).

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Published

2026-01-27