Title:
A low grace blast-furnace-slag blended cement constituent and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6281365
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a low-grade blast furnace slag-mixed cement composition which exhibits excellent strength development even when the blast furnace slag, the basicity of which does not meet the JIS standard, is used.SOLUTION: The low-grade blast furnace slag-mixed cement composition contains: a cement composition comprising cement clinker and gypsum; and the blast furnace slag. The basicity of the blast furnace slag is equal to or higher than 1.4 or lower than 1.6 and the content of the blast furnace slag exceeds 1 mass% and is equal to or lower than 15 mass%. A production method of the low-grade blast furnace slag-mixed cement composition comprises a step of mixing the cement clinker, the gypsum, and the blast furnace slag having the basicity equal to or higher than 1.4 or lower than 1.6 so that the content of the blast furnace slag exceeds 1 mass% and is equal to or lower than 15 mass% to prepare the low-grade blast furnace slag-mixed cement composition.
Inventors:
Hirokatsu Mori
Hidetoshi Misumi
Eiji Maruya
Toshiyuki Takahashi
Hidetoshi Misumi
Eiji Maruya
Toshiyuki Takahashi
Application Number:
JP2014065206A
Publication Date:
February 21, 2018
Filing Date:
March 27, 2014
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
C04B7/153; C04B7/19
Domestic Patent References:
| JP2007137722A | ||||
| JP61242942A | ||||
| JP2013107816A | ||||
| JP58015048A | ||||
| JP2003104762A | ||||
| JP50035214A |
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