Characterization of mortars from belite-rich clinkers produced from inorganic wastes

Ying Liang Chen, Chien Jung Lin, Ming Sheng Ko, Yi Chieh Lai, Juu En Chang

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

The purpose of this study was to use inorganic wastes to totally replace traditional raw materials for the production of belite-rich clinkers and to investigate the hydration characteristics of the resulting mortars. The produced clinkers were rich in β-dicalcium silicate, and mixed with ordinary Portland cement at various proportions to form blended cements. The hydration of the cement pastes was slowed down by increasing the fraction of belite-rich clinkers. However, the blended cement mortars had comparable compressive strength to the commercial ordinary Portland cement mortar at later curing ages. The results indicate that the blended cements containing up to 40% belite-rich clinkers can still satisfy the compressive strength requirements for Type I Portland cements. The high fraction of belite-rich clinkers in the blended cements produces pastes with longer linear polysilicate anions in the calcium silicate hydrates, which could contribute to the high later-age strength of these blended cement paste mortars.

Original languageEnglish
Pages (from-to)261-266
Number of pages6
JournalCement and Concrete Composites
Volume33
Issue number2
DOIs
Publication statusPublished - 2011 Feb 1

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Materials Science(all)

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