EFFECTS OF MANUFACTURING CONDITIONS ON HYDRATION REACTIVITY OF SYNTHESIZED C₂S SOLID SOLUTION

製造条件がC₂S固溶体の水和活性に与える影響

It is assumed that the increase in belite in Portland cement causes not only the reduction in the manufacturing energy of the clinker, but also the decrease in the early strength of the cement. To address this, it is necessary to improve the early hydration reactivity of belite, but detailed analyses of the relationships between manufacturing conditions and hydration reactivity of belite have not been studied. In this study, the authors synthesized C₂S solid solutions at varied conditions to evaluate the hydration reactivity of them in high belite cement. As a result, the hydration reactivity of C₂S solid solution was affected by both the chemical composition and the crystal phase composition. In addition, the hydration reactivity was highly improved by barium.ポルトランドセメントの高ビーライト化により、クリンカー製造エネルギーの低減が期待されるが、同時に初期強度の低下も懸念される。この対処には、ビーライトの初期水和活性の改善が必要であるが、これまでビーライトの製造条件と水和活性の詳細な関係解析は行われていない。本研究では、C₂S固溶体を様々な条件で合成し、高ビーライトセメント中での水和活性を評価することを目的とした。その結果、C₂S固溶体の水和活性は、結晶相組成および化学組成の両者に強く影響され、Baの添加により大きく改善することが示された。

• Record URL:
  https://doi.org/10.14250/cement.68.96
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=EFFECTS+OF+MANUFACTURING+CONDITIONS+ON+HYDRATION+REACTIVITY+OF+SYNTHESIZED+C%e2%1a%1aS+SOLID+SOLUTION&author=S.+NIIJIMA&author=M.+OHNO&author=D.+KUROKAWA&author=H.+HIRAO&publication_year=2014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09163182
• Authors:
  • NIIJIMA, Shun
  • OHNO, Maiko
  • KUROKAWA, Daisuke
  • HIRAO, Hiroshi
• Publication Date: 2014

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 96-102
• Serial:
  • Cement Science and Concrete Technology
  • Volume: 68
  • Issue Number: 1
  • Publisher: Japan Cement Association
  • ISSN: 0916-3182
  • EISSN: 2187-3313
  • Serial URL: https://www.jstage.jst.go.jp/browse/cement/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Barium; Chemical composition; Chemical reactivity; Clinkers; Hydration; Manufacturing; Portland cement
• Subject Areas: Construction; Materials; Transportation (General); I32: Concrete; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01564521
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: May 26 2015 4:12PM