Revision of JIS A 6207 “Silica fume for use in concrete”

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  • Naruse H.
    日本シリカフューム技術研究会（三菱マテリアル（株））
  • Nagataki S.
    日本シリカフューム技術研究会（愛知工業大学）
  • Gomi H.
    日本シリカフューム技術研究会（グレースケミカルズ（株））
  • Jinnai H.
    日本シリカフューム技術研究会（大成建設（株））

Bibliographic Information

Other Title
  • JIS A 6207「コンクリート用シリカフューム」の規格改正
  • JIS A 6207 「 コンクリートヨウ シリカフューム 」 ノ キカク カイセイ
  • Revision of JIS A 6207 ^|^ldquo;Silica fume for use in concrete^|^rdquo;

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Description

Japanese Industrial Standard (JIS) A 6207 “Silica fume for use in concrete” was revised in May 2011. The major revisions are as follows. 1) The loss on ignition of dry silica fume shall be less than 4.0%. 2) W/B for the test of activity index shall be 30%. In Japan, silica fume is primarily used for ultra-high-strength concrete. Therefore, W/B for the test of activity index set in W/B which is near to the general mixture proportion of ultra-high-strength concrete. In addition, the findings of silica fume quality (including content of trace elements and water-soluble trace elements) in Japan and abroad, the findings of overseas standards, and study results of chemical analysis by x-ray fluorescence are listed.

Journal

  • Concrete Journal

    Concrete Journal 49 (12), 12_10-12_16, 2011

    Japan Concrete Institute

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