Using quartzofeldspathic waste to obtain foamed glass material

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• 作者：O.V. Kazmina ; ^{kazmina@tpu.ru" class="auth_mail" title="E-mail the corresponding author} ; A.Y. Tokareva ; V.I. Vereshchagin
• 关键词：Quartzofeldspathic waste ; Low-temperature frit ; Foamed glass material
• 刊名：Resource-Efficient Technologies
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：2
• 期：1
• 页码：23-29
• 全文大小：1954 K

文摘

The present paper proposes a method for the processing of mine refuse non-ferrous metal ore in the production of foamed glass. The subject of this research is a low-temperature frit synthesis (<900 °C), allowing for the high-temperature glass melting process to be avoided. The technology for the production of frit without complete melting of the batch and without using glass-making units offers a considerable reduction in energy consumption and air pollution. It was found that material samples obtained with a density of up to 250 kg/m³ are of rigidity (up to 1.7 MPa) in comparison with the conventional foamed glass (1 MPa). This increased rigidity was due to the presence of crystalline phase particles in its interpore partition of less than 2 µm in size. Material with a density of 300 kg/cm³ is recommended for thermal insulation for the industrial and construction sectors. At densities above 300 kg/cm³ and a strength of 2.5 MPa, the purpose becomes heat-insulating construction material. The proposed method for obtaining a porous material from waste widens our choice of raw materials for foamed glass, whilst saving resources and energy.