Investigation of the Change in the Phase Composition, Properties, and Hydraulic Activity During the Thermal Treatment of Magnesian Materials

N. A. Mitina, V. A. Lotov

Research output: Contribution to journalArticle

Abstract

The effect of the heat treatment regime on the hydraulic activity of magnesian materials was determined from the heat release during interaction with water. Hydration processes proceed efficiently, hardening structures are formed after calcination of the initial magnesian materials in the range of 500 – 800°C. Therefore, in the production of hydraulically active magnesium oxide used to make the magnesian binder, it is necessary to bake magnesian materials regardless of their nature at low or moderate temperatures in the range of 500 – 800°C. The change in the structure and properties of magnesian materials during heat treatment has a great influence on the processes of sintering refractory materials.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalRefractories and Industrial Ceramics
DOIs
Publication statusAccepted/In press - 24 Oct 2017

Fingerprint

Phase composition
Heat treatment
Hydraulics
Magnesium Oxide
Magnesia
Hydration
Refractory materials
Calcination
Binders
Hardening
Sintering
Water
Temperature

Keywords

  • heat treatment
  • hydraulic activity
  • magnesian materials
  • magnesium oxide
  • phase composition
  • specific surface area

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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AB - The effect of the heat treatment regime on the hydraulic activity of magnesian materials was determined from the heat release during interaction with water. Hydration processes proceed efficiently, hardening structures are formed after calcination of the initial magnesian materials in the range of 500 – 800°C. Therefore, in the production of hydraulically active magnesium oxide used to make the magnesian binder, it is necessary to bake magnesian materials regardless of their nature at low or moderate temperatures in the range of 500 – 800°C. The change in the structure and properties of magnesian materials during heat treatment has a great influence on the processes of sintering refractory materials.

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