Siliceous raw material in manufacturing of granulated insulation materials on the technology of low-temperature foaming
A. L. Vinitskiya, G. K. Ryabovb, N. A. Senika, A. V. Meshkova, Ju. A. Korostelyovab, Ye. G. Fetyuhinab
a Scientific and Technological Center «Silicate materials and technologies»
b Industrial Investment Company «Diatomit-Invest» LLC
Abstract: Granulated foam glass is an effective insulation material based on natural raw materials. Its manufacturing on the technology of low temperature foaming, excluding premelting of glass or the use of scrap and waste glass, comprises the steps of drying and grinding of diatomite rock of Inza deposit (Ulyanovsk region), mixing the crushing product with a caustic soda, sodium hydroxide aqueous solution and the poreforming liquid mixture (glycerin) in the intensive-mixer granulator for forming of granulated material, its drying at a temperature of 125 °C and foaming at the temperature of 800 °C. The choice of diatomite as a silica component for insulating filling agents on the technology of low temperature swelling is caused by a high content of silica in the rock, the constancy of the composition and porous nanostructure (average pore size is of 0.1 to 1–2 microns). The quality (density, strength and thermal conductivity characteristics) of the developed heat-insulating crystalline granulated material is comparable to the best foreign models. The work was released within the contract № 13.G.25.31.0092 dated 22.10.2010 between the Ministry of Education of the Russian Federation and Diatomovy Kombinat.
Keywords: diatomaceous earth (diatomite), low-temperature foaming, thermal insulation material, granulated foam glass.
Pages: 137-148.
Link for citation: Vinitskiy, A. L.; Ryabov, G. K.; Senik, N. A. [et al.]. Siliceous raw material in manufacturing of granulated insulation materials on the technology of low-temperature foaming. – Text : electronic. – In: Modern Industrial and Civil Construction. – 2012. – Vol. 8, N 3. – Р. 137-148. – URL: https://donnasa.ru/publish_house/journals/spgs/2012-3/04_vinickij_ryabov_senik_meschkov_korosteleva_fetyuhina.pdf (date of access: 18.10.2024). (in Russian)
Vol. 8, N 3 (2012)Journal: Modern Industrial and Civil Construction
Publish house: Donbas National Academy of Civil Engineering and Architecture