Analysis of Influence of Foaming Mixture Components on Structure and Properties of Foam Glass

[摘要] It is recommended to use high-quality thermal insulation materials to increase the energy efficiency of buildings. One of the best thermal insulation materials is foam glass - durable, porous material that is resistant to almost any effect of substance. Glass foaming is a complex process depending on the foaming mode and the initial mixture composition. This paper discusses the influence of all components of the mixture - glass powder, foaming agent, enveloping material and water - on the foam glass structure. It was determined that glass powder is the basis of the future material. A foaming agent forms a gas phase in the process of thermal decomposition. This aforementioned gas foams the viscous glass mass. The unreacted residue thus changes a colour of the material. The enveloping agent slows the foaming agent decomposition preventing its premature burning out and, in addition, helps to accelerate the sintering of glass particles. The introduction of water reduces the viscosity of the foaming mixture making it evenly distributed and also promotes the formation of water gas that additionally foams the glass mass. The optimal composition for producing the foam glass with the density of 150 kg/m3is defined according to the results of the research.

[发布机构] Department of General Chemistry and Technology of Silicates, Platov South-Russian State Polytechnic University (NPI), St. Prosvescheniya, 132, Rostov region, Novocherkassk; 346428, Russia^1

[学科分类] 土木及结构工程学

[关键词] Complex Processes;Glass foaming;Glass particles;Mixture components;Mixture compositions;Optimal composition;Structure and properties;Thermal insulation materials