CHARACTERISTIC OF BLAST FURNACE SLAG CEMENT A-TYPE USING CLINKER WITH ADJUSTED MINERAL COMPOSITION

鉱物組成を調整したクリンカーを用いた高炉セメントA種の特性

In order to improve the properties of blast-furnace slag cement, several types of blast-furnace slag cement type A were made from clinker with high C3S content ranging from 59 to 71 percent and the properties of concrete were investigated with comparison of ordinary Portland cement. From the experimental data, the following results were obtained. When the cement with high C3S content was used, water content required to obtain the specified slump was decreased by using blast-furnace slag to be the same as that of ordinary portland. Early-age compressive strength of concrete with blast-furnace slag cement type A was improved by increasing C3S content more than 65％, especially at low temperature. Effects of C3S content of blast-furnace slag cement type A on the rate of accelerated carbonation rate and shrinkage under drying condition were small, and these properties were about the same as OPC.高炉セメントの性能改善を目的として、C₃S量を59～71％の範囲で調整したクリンカーを用いて高炉セメントA種を試作し、コンクリートの諸特性について普通ポルトランドセメント（OPC）と比較検討した。その結果、C₃S量が高いクリンカーを用いた場合、所要のスランプを得るための単位水量は、高炉スラグを混入することにより低減でき、OPCの場合と同等となった。C₃S量を65％以上に増加させることにより、高炉セメントA種の初期強度は、特に低温条件下で改善され、高炉セメントA種の圧縮強度および乾燥環境下における収縮特性は、OPCと同等となった。また、C₃S量の増加に伴う中性化速度の改善は認められなかった。

• Record URL:
  • https://doi.org/10.14250/cement.66.338
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=CHARACTERISTIC+OF+BLAST+FURNACE+SLAG+CEMENT+A-TYPE+USING+CLINKER+WITH+ADJUSTED+MINERAL+COMPOSITION&author=A.+YATAGAI&author=N.+NITO&author=S.+MIYAZAWA&author=E.+SAKAI&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09163182
• Authors:
  • YATAGAI, Atsushi
  • NITO, Nobukazu
  • MIYAZAWA, Shingo
  • SAKAI, Etsuo
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp 338-345
• Serial:
  • Cement Science and Concrete Technology
  • Volume: 66
  • 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: Carbonation; Clinkers; Compressive strength; Drying; Portland cement; Shrinkage; Slag
• Subject Areas: Highways; Materials; I30: Materials;

Filing Info

• Accession Number: 01506025
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Jan 29 2014 7:32AM