Performance of glass-blended cement produced by intergrinding and separate grinding methods

Ilhwan You, Doo Yeol Yoo, Jeung Hwan Doh, Goangseup Zi

Research output: Contribution to journalArticlepeer-review

Abstract

This study aims to investigate the grindability and performance of glass-blended cements depending on the grinding method and glass type. Two grinding methods, intergrinding and separate grinding, and two types of waste glass, liquid crystal display glass (LCDG) and soda-lime glass (SLG), were considered. To study grindability, the milling characteristics of the coarse waste glass and fine glass-blended mixtures were investigated. The four types of glass-blended cements produced by the two grinding methods and the two types of waste glass were evaluated on particle size distribution, chemical composition, heat flow of hydration, hydration behavior, strength development and mitigation in alkali–silica reaction (ASR) expansion. It was found that the intergrinding method was more cost-efficient in producing glass-blended cements than the separate grinding method. Intergrinding of the glass-blended mixtures resulted in finer cement and coarser glass fractions. The interground glass-blended cements showed faster hydration reactivity but slightly lower strength and mitigation in ASR expansion than did separately ground glass-blended cements.

Original languageEnglish
Article number103937
JournalCement and Concrete Composites
Volume118
DOIs
Publication statusPublished - 2021 Apr

Keywords

  • Blended cement
  • Intergrinding
  • LCD glass
  • Separate grinding
  • Soda–lime glass

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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