Simulation and property prediction of MgO-FeO-MnO solid solution in steel slag

Zhimin Chen, Jiaxiang Liu*, Rui Li

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

18 Citations (Scopus)

Abstract

RO phase in steel slag is form by divalent oxides of magnesium, iron, and manganese. The activity and expansibility of MgO-FeO-MnO solid solution were affected by the content of FeO and MnO, which further affects the application of steel slag in building materials. The micromorphology of MgO-FeO-MnO phase was diverse in different steel slag, and was affected by Fe, Mn content and grain boundary wetting phase transitions. By synthesizing MgO-FeO-MnO solid solution to simulate RO phase, it was found that the hydration activity of the solid solution will increase with the decrease of FeO/MnO, but only up to 23.275% of MgO in MgO-FeO-MnO solid solution can be hydrated. Unhydrated MgO affects the volume stability of steel slag. It is also a hidden danger in the application of steel slag in building materials.
Original languageEnglish
JournalMaterials Letters
Volume273
ISSN0167-577X
DOIs
Publication statusPublished - 2020
Externally publishedYes

Keywords

  • Sintering
  • Microstructure
  • Thermal analysis

Fingerprint

Dive into the research topics of 'Simulation and property prediction of MgO-FeO-MnO solid solution in steel slag'. Together they form a unique fingerprint.

Cite this