Title:
スラグ粉及びスラグ粉の製造方法
Document Type and Number:
Japanese Patent JP6597274
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a slag powder capable of suppressing reduction of reaction activity of the slag powder and being used for a blast furnace cement having suppressed reduction of compressive strength of a cured article regardless of presence or absence of a deteriorated raw material slag and a manufacturing method of the slag powder.SOLUTION: This invention relates to a slag powder having a Blaine specific surface area of 4000-7000 cm/g, a 24 μm sieve residual component measured by a laser diffraction type particle size distribution measurement method of 30 vol.% or less. There is provided a manufacturing method of the slag powder including a process of preparing a raw material slag with a Blaine specific surface area of 4000 cm/g, a 24 μm sieve residual component measured by a laser diffraction type particle size distribution measurement method of 30 vol.% or less to obtain the slag powder.SELECTED DRAWING: None
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Inventors:
Kenji Miyawaki
Application Number:
JP2015246430A
Publication Date:
October 30, 2019
Filing Date:
December 17, 2015
Export Citation:
Assignee:
Sumitomo Osaka Cement Co., Ltd.
International Classes:
C04B5/00; C21B3/04; F27D15/00
Domestic Patent References:
| JP2010235383A | ||||
| JP61141647A | ||||
| JP57067051A |
Other References:
近松竜一、山本泰彦,高炉スラグ微粉末の粉末度評価法に関する研究,土木学会論文集,日本,土木学会,1990年 8月,第420号/v-13,p71-p80
李長江、依田彰彦、横室隆,高炉スラグ微粉末を用いたモルタルの細孔構造と乾燥収縮,コンクリート工学年次論文報告集,日本,日本コンクリート工学会,1998年,20巻2号,P187-P192
李長江、依田彰彦、横室隆,高炉スラグ微粉末を用いたモルタルの細孔構造と乾燥収縮,コンクリート工学年次論文報告集,日本,日本コンクリート工学会,1998年,20巻2号,P187-P192
Attorney, Agent or Firm:
Tamotsu Otani
Arinaga Shun
Arinaga Shun