Abstract
Thermal insulation materials are the main link in solving the problem of enclosing constructions energy efficiency. The number of heat insulators is relatively low, that`s why it is important to develop new insulators that would be better than the existing ones in their characteristics. Such heat-insulating material as foam glass is known, but it is practically not applied, despite the fact that it possesses high heatinsulating and mechanical characteristics, it is non-combustible, durable and environmentally friendly. All the advantages of foam glass are inferior to one drawback. It is the high cost price of this material. If the cost price of foam glass was reduced and its main characteristics were at the same level, foam glass would take a leading position among other heatinsulating materials. The article presents some information about the development of foam glass, in which dolomite flour is used as a foaming agent. The material proposed by the authors has a density of about 200 kg / m3, water absorption of 25%. The material is manufactured at maximum foaming temperature of 750 °C.
Highlights
The high cost of energy resources has led to the fact that the energy efficiency problem has become the most important one for most countries of the world
The characteristics of foam glass which is obtained by applying a carbonate blowing agent are not satisfactory enough, which is connected with high average density (300 kg / m3), compared with traditional foam glass, and an increased value of water absorption (25- 30%) [7]
It is necessary to expand the range of heat-insulating materials to reduce energy consumption
Summary
The high cost of energy resources has led to the fact that the energy efficiency problem has become the most important one for most countries of the world. The characteristics of foam glass which is obtained by applying a carbonate blowing agent (dolomite flour) are not satisfactory enough, which is connected with high average density (300 kg / m3), compared with traditional foam glass (less than 200 kg / m3), and an increased value of water absorption (25- 30%) [7]. It is considered that it is not possible to obtain foam glass characterized by low water absorption (less than 10%) and density using carbonate blowing agents [8]. It can be assumed that foam glass obtained with the use of a carbonate blowing agent can be obtained with a density of less than 200 kg / m3 and a water absorption of less than 30% only with the use of more additions Such foam glass will reduce the cost in comparison with traditional foam glass
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