Title:
MIXED CEMENT
Document Type and Number:
WIPO Patent Application WO/2018/198392
Kind Code:
A1
Abstract:
Provided is mixed cement which comprises coal ash, maintains characteristics as an admixture of coal ash, and has high early strength development. This mixed cement comprises 20 to 40 mass% of coal ash which has an SiO2 content of 55 to 60 mass% and has a SiO2/Al2O3 mass ratio of 2.3 to 2.7 and 60 to 80 mass% of portland cement with respect to the total amount of the coal ash and the portland cement, and 100 to 300 mg/kg of trialkanolamine having three straight-chain alkanol groups having three or less carbon atoms.
Inventors:
MIYAWAKI KENJI (JP)
KANAI KENSUKE (JP)
KANAI KENSUKE (JP)
Application Number:
PCT/JP2017/033785
Publication Date:
November 01, 2018
Filing Date:
September 19, 2017
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD (JP)
International Classes:
C04B28/04; B09B3/00; C04B7/26; C04B18/10; C04B24/12
Domestic Patent References:
| WO2014077251A1 | 2014-05-22 |
Foreign References:
| JP2006256919A | 2006-09-28 | |||
| JPH08100403A | 1996-04-16 | |||
| JPH05186251A | 1993-07-27 | |||
| JPS5443008B1 | 1979-12-18 | |||
| JPS5722146A | 1982-02-05 | |||
| JP2001330574A | 2001-11-30 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
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