THE DEVELOPMENT OF AN ENERGY-SAVING GENERAL-PURPOSE CEMENT

省エネルギー型汎用セメントの開発

The authors developed an energy-saving cement for the purpose of decrease in the production energy of Ordinary Portland Cement (OPC). It is widely known that two approaches are generally effective for the purpose. One is to reduce the production energy of clinkers, and the other is to reduce the content of clinker in cement. In this study, they took both approaches and aimed to reduce the production energy, and also to maintain the quality of the cement equivalent to OPC’s. Test clinkers were burnt in an electric furnace and a test kiln respectively. These clinkers were milled and mixed with several admixtures (granulated ground blast furnace slag, fly ash, and limestone powder) to evaluate the cement quality. As a result, both the electric furnace and the test kiln tests revealed that the increase in the C₃A content in clinker is one of the effective options to reduce the burning energy of clinkers. The authors found the possibility to reduce the production energy and to maintain the quality of cement, by increasing in the C₃A content in clinker by 4% and increasing in the admixtures content in cement by 5%. Limestone powder should be added at least 5% as an admixture as well. OPC製造エネルギーの削減を目標に、省エネ型セメントの開発を行った。一般にセメントの製造エネルギー削減手法としては、クリンカー製造エネルギーの削減およびクリンカー量の削減が挙げられる。本検討では両者を併用しエネルギー削減および品質維持の両立を目指した。電気炉およびテストキルンによりセメント基材用クリンカーを試製し、各種混合材を添加したセメントの品質評価を実施した。その結果、クリンカー中のC₃Aを4％増加させ、混合材を現行のOPCより5％増加させることで、セメント製造エネルギーの削減および品質維持を両立できる可能性が示された。

• Record URL:
  • https://doi.org/10.14250/cement.68.103
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=THE+DEVELOPMENT+OF+AN+ENERGY-SAVING+GENERAL-PURPOSE+CEMENT&author=T.+AKI&author=S.+NIIJIMA&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:
  • AKI, Tomoko
  • NIIJIMA, Shun
  • KUROKAWA, Daisuke
  • HIRAO, Hiroshi
• Publication Date: 2014

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 103-109
• 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: Admixtures; Cement; Clinkers; Energy conservation; Fly ash; Granulated slag; Limestone dust; Production
• Subject Areas: Construction; Highways; Materials; I32: Concrete; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01564492
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: May 26 2015 4:12PM