Physical properties of crushed air-cooled blast furnace slag and numerical representation of its morphology characteristics

Aiguo Wang, Min Deng, Daosheng Sun, Bing Li, Mingshu Tang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Physical properties and geometrical morphologies of crushed air-cooled blast furnace slag(SCR) and crushed limestone(LCR) were comparatively investigated. The shape, angularity, surface texture and internal pore structure of aggregate particles for different size and gradation were numerically represented by sphericity(φ) and shape index(SI), angularity number(AN), index of aggregate particle shape and texture(IAPST), porosity and pore size, respectively. The results show that SCR is a porous and rough aggregate. Apparent density, void, water absorption and smashing index of SCR are obviously higher than those of LCR with the same gradation, respectively. However, bulk density of SCR is lower than that of LCR with the same gradation. SI, AN, IAPST and porosity of SCR are obviously higher than those of LCR with the same gradation, respectively. The smaller particle size of SCR, the larger of its AN, IAPST and porosity.

Original languageEnglish
Pages (from-to)973-978
Number of pages6
JournalJournal Wuhan University of Technology, Materials Science Edition
Volume27
Issue number5
DOIs
StatePublished - Oct 2012

Keywords

  • Crushed air-cooled blast furnace slag
  • Crushed limestone
  • Morphology characteristic
  • Numerical representation
  • Physical property

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