Thermal insulation of pipelines by foamed glass-ceramic

被引：1

作者：

Apkaryan, A. S. ^{[1
,2
]}

Kudyakov, A. I. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Tomsk 634021, Russia

[2] Tomsk State Univ Control Syst & Radio Elect, Tomsk 634055, Russia

[3] Tomsk State Univ Architecture & Bldg, Tomsk 634003, Russia

来源：

INTERNATIONAL SCIENTIFIC CONFERENCE OF YOUNG SCIENTISTS: ADVANCED MATERIALS IN CONSTRUCTION AND ENGINEERING | 2015年 / 71卷

关键词：

D O I：

10.1088/1757-899X/71/1/012004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

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/m(3), pellet strength -1.74 MPa, thermal conductivity -0.075 W/m degrees 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.

引用

页数：6