Development of Bulk Lightweight Spherosilicate Material Technology Based on Sublimation of Expanded Polystyrene Granules

A. I. Nizhegorodov, A. N. Gavrilin, B. B. Moizes

Research output: Contribution to journalArticlepeer-review

Abstract

The paper discusses the technology for producing bulk lightweight spherosilicate materials as an alternative to expanded vermiculite-based thermal insulation products. The technology is based on the idea of using granulated expanded polystyrene to create a core of silicate spheres coated with special liquid glass-based mixture and treated with carbon dioxide in the process of forming polystyrene-silicate mineralized granules to ensure quick hardening thereof. The paper also reviews a device and operation of the special equipment developed by the authors, such as a mixer for producing polystyrene-silicate mineralized granules and electric drum furnace for roasting spheres and subliming expanded polystyrene granules.

Original languageEnglish
Pages (from-to)475-481
Number of pages7
JournalRefractories and Industrial Ceramics
Volume60
Issue number5
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • bulk lightweight spherosilicate materials
  • expanded polystyrene (EPS) granules
  • granulated expanded polystyrene
  • silicate spheres
  • sublimation of expanded polystyrene granules

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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