Thermal insulation of pipelines by foamed glass-ceramic

International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering

材料科学;土木建筑工程;工业技术

Apkaryan, A.S.^1,2 ; Kudyakov, A.I.^3

Institute of Strength Physics and Materials Science, Tomsk

634021, Russia^1

Tomsk State University of Control Systems and Radio Electronics, Tomsk

634055, Russia^2

Tomsk State University of Architecture and Building, Tomsk

634003, Russia^3

关键词: Basic parameters;    Charge composition;    Firing temperature;    Insulating glass;    Organic additives;    Physical characteristics;    Pipe insulation;    Research results;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/71/1/012004/pdf
DOI  :  10.1088/1757-899X/71/1/012004

来源: IOP

【 摘 要 】

Based on broken glass, clay and organic additives granular insulating glass crystalline material and technology of its receipt are developed. The regularities of the effect of composition and firing temperature on the properties of the granules are specified. The resulting granular thermally insulating material is produced with a bulk density of 260-280 kg/m3pellet strength-1.74 MPa, thermal conductivity-0.075 W/m °C, water absorption-2.6 % by weight. The effect of the basic physical characteristics of the components of the charge on the process of pore formation is studied. According to the research results, basic parameters affecting the sustainability of the swelling glass are specified. Rational charge composition, thermal and gas synthesis mode are chosen so that the partial pressure of gases is below the surface tension of the melt. This enables the formation of granules with small closed pores and vitrified surface. The article is the result of studies on the application of materials for pipe insulation of heating mains with foamed glass ceramics.