COMPARATIVE INDICATORS OF ENERGY CONTAINMENT OF PRODUCTION OF AUTOCLAVE CONCRETE CONCRETE AND OTHER WALL MATERIALS
DOI:
https://doi.org/10.31649/2311-1429-2020-1-41-48Keywords:
energy saving, autoclaved aerated concreteAbstract
The paper highlights the current problem of the need to increase energy efficiency in the construction industry, which is one of the largest consumers of energy. The need to minimize the consumption of energy resources is associated with their excessive costs, energy dependence of the country. In addition, the problem of greenhouse gas emissions, which lead to rising temperatures and climate change and are associated with excessive combustion of carbohydrates, has become more acute.
In Ukraine, the share of low-rise housing is growing, which requires much more building materials. The paper presents comparative energy consumption of traditional wall materials and autoclaved aerated concrete. Rising energy prices and regulatory requirements for thermal resistance of building envelopes have led to the fact that autoclaved aerated concrete displaces ceramic and silicate bricks, expanded clay and expanded clay concrete products from the construction market and is 51% in the structure of wall materials.
An analysis of the dynamics of aerated concrete production in Ukraine. There was a sharp decline in the production of autoclaved aerated concrete from 1.2 million m3 in 1990 to 100 thousand m2 in 2000 and a sharp increase from about 2007 to 3.9 million m3 in 2016. Today, the declared production capacity of autoclaved aerated concrete is estimated at 4.5 million m3. It is shown that the transition to the production of aerated concrete from the brand D600, D700 to D300 and D400 provides a reduction of material and energy resources. To reduce the energy consumption of the production of autoclaved aerated concrete, it is proposed to use blast furnace granulated slag as part of Portland cement.
The comparative indicators of low-density aerated concrete of Aerok LLC and the German company Xella, which is the only one in Europe to produce aerated concrete under the Multipor brand, are given. Autoclaved aerated concrete D100 – D200 is the "warmest" cellular concrete insulation, which is suitable for internal and external wall insulation.
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