Title:
セメント組成物等の固結性評価方法および製造方法
Document Type and Number:
Japanese Patent JP7256648
Kind Code:
B2
Abstract:
To address such a problem that, regarding cement compositions, etc., a conventional caking evaluation method does not take into consideration influence of pressurization by the powder weight during storage and transport.SOLUTION: A method of evaluating caking of powder includes: (i) a step of filling a container with caking powder; (ii) a pressurization and heating step of stationarily placing the caking powder in the container in environment under the pressure of 0.1-2.0 MPa and a temperature of not less than 30°C and not more than 90°C for a certain period; and (iii) after the pressurization and heating step, applying an impact to the container to evaluate the caking property by the number of times of impact and a falling state of the powder, or inserting an initial needle into the powder in the container to evaluate the caking property of the powder by penetration state thereof. A manufacturing method of cement compositions, etc. including the evaluation method is also provided.SELECTED DRAWING: None
Inventors:
Maki Yamashita
Hiroshi Kadota
Hiroshi Kadota
Application Number:
JP2019015744A
Publication Date:
April 12, 2023
Filing Date:
January 31, 2019
Export Citation:
Assignee:
UBE Mitsubishi Cement Co., Ltd.
International Classes:
G01N33/38; G01N3/30; G01N3/40
Domestic Patent References:
| JP6069119B2 | ||||
| JP2012240874A | ||||
| JP2017160061A | ||||
| JP2009536141A | ||||
| JP2175637A | ||||
| JP2011144070A | ||||
| JP2950331B1 | ||||
| JP2002286220A | ||||
| JP2008030961A |
Other References:
内田俊一郎 ほか,石灰岩の固生成メカニズムの解明 その1,無機マテリアル学会第110回学術講演会講演要旨集,2005年,pp.46-47
岸吉宏 ほか,加湿および添加物混合による石炭灰の固化防止方法の検討,粉体工学会誌,2005年,Vol.42,pp.460-466
岸吉宏 ほか,加湿および添加物混合による石炭灰の固化防止方法の検討,粉体工学会誌,2005年,Vol.42,pp.460-466
Attorney, Agent or Firm:
Chiba Hiroshi