The impact of mechanical grinding on calcium aluminate cement hydration at 30 °C

Kun Liu, Anbang Chen, Xuejun Shang, Liugang Chen, Lichun Zheng, Song Gao, Ying Zhou, Qingfeng Wang, Guotian Ye

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Calcium aluminate cement (CAC) was ground for 1 and 2 h to investigate the impact of mechanical grinding on CAC hydration at 30 °C and CAC-bonded castable strength. Phase composition and microstructure of unground and ground cements after hydration for predetermined times and terminated by the freeze-vacuum drying were compared. The results indicate that the particle size and particle size distribution of CAC were reduced and narrowed, respectively by grinding, thereby favoring the hydration rate and the conversation of C 2 AH 8 to C 3 AH 6 . Then enhanced cement hydration also increases the strengths of castables bonded with milled CAC after drying and firing.

Original languageEnglish
Pages (from-to)14121-14125
Number of pages5
JournalCeramics International
Volume45
Issue number11
DOIs
Publication statusPublished - 2019 Aug 1

Keywords

  • Calcium aluminate cement
  • Castables
  • Hydration
  • Refractory

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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