JP2009234905A5 - - Google Patents

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Publication number
JP2009234905A5
JP2009234905A5 JP2008323432A JP2008323432A JP2009234905A5 JP 2009234905 A5 JP2009234905 A5 JP 2009234905A5 JP 2008323432 A JP2008323432 A JP 2008323432A JP 2008323432 A JP2008323432 A JP 2008323432A JP 2009234905 A5 JP2009234905 A5 JP 2009234905A5
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JP
Japan
Prior art keywords
mass
2cao
sio
cement
gypsum
Prior art date
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Application number
JP2008323432A
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English (en)
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JP5350770B2 (ja
JP2009234905A (ja
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Priority to JP2008323432A priority Critical patent/JP5350770B2/ja
Priority claimed from JP2008323432A external-priority patent/JP5350770B2/ja
Publication of JP2009234905A publication Critical patent/JP2009234905A/ja
Publication of JP2009234905A5 publication Critical patent/JP2009234905A5/ja
Application granted granted Critical
Publication of JP5350770B2 publication Critical patent/JP5350770B2/ja
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Claims (6)

  1. 2CaO・SiO2及び2CaO・(Al2O3)x・(Fe2O3)1-x・SiO2(ただし、0≦x≦1)を必須成分とし、2CaO・SiO2含有量が50質量%以上で、かつ、2CaO・SiO2+2CaO・(Al2O3)x・(Fe2O3)1-x・SiO2含有量が92質量%以上である焼成物を粉砕してなることを特徴とするセメント添加材。
  2. 焼成物中のカルシウムアルミネート及び4CaO・Al2O3・Fe2O3含有量が5質量%以下である請求項1記載のセメント添加材。
  3. 焼成物の粉砕物100質量部に対して、石膏をSO3換算で6質量部以下含有する請求項1又は2記載のセメント添加材。
  4. セメントに対して、請求項1〜3のいずれかに記載のセメント添加材を内割で50質量%以下含有するセメント組成物。
  5. 石膏を、SO3換算で1.5〜5質量%含有する請求項4記載のセメント組成物。
  6. SO3換算で全石膏中の5〜50質量%が無水石膏である請求項5記載のセメント組成物。
JP2008323432A 2008-03-07 2008-12-19 セメント組成物 Active JP5350770B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008323432A JP5350770B2 (ja) 2008-03-07 2008-12-19 セメント組成物

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008057866 2008-03-07
JP2008057866 2008-03-07
JP2008323432A JP5350770B2 (ja) 2008-03-07 2008-12-19 セメント組成物

Publications (3)

Publication Number Publication Date
JP2009234905A JP2009234905A (ja) 2009-10-15
JP2009234905A5 true JP2009234905A5 (ja) 2011-12-15
JP5350770B2 JP5350770B2 (ja) 2013-11-27

Family

ID=41249337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008323432A Active JP5350770B2 (ja) 2008-03-07 2008-12-19 セメント組成物

Country Status (1)

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JP (1) JP5350770B2 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6037074B2 (ja) * 2015-03-23 2016-11-30 住友大阪セメント株式会社 セメント組成物
WO2020232091A1 (en) * 2019-05-13 2020-11-19 Carmeuse North America Calciner using recirculated gases

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0570192A (ja) * 1991-09-11 1993-03-23 Onoda Cement Co Ltd 水硬性セメント
JP2007055843A (ja) * 2005-08-24 2007-03-08 Taiheiyo Cement Corp セメント添加材

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