Title:
Grinding aid and cement
Document Type and Number:
Japanese Patent JP6238398
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pulverization auxiliary which has a pulverization efficiency as large as diethylene glycol and a strength development of cement as high as in the case of using diethylene glycol.SOLUTION: This invention relates to a pulverization auxiliary containing 0.2-20 pts.mass of 1,1'-[(1-methyl-1,2-ethanediyl)bis(oxy)bis-2-propanol on the basis of 100 pts.mass of propylene glycol. This invention also relates to cement containing 0.01-1 pt.mass of the pulverization auxiliary on the basis of 100 pts.mass of cement clinker or 100 pts.mass of total of cement clinker and gypsum. Further, this invention relates to concrete using the cement and concrete containing 0.05-5 kg per 1 mof concrete in terms of solid content of salt of a naphthalenesulfonic acid formaldehyde condensate.
Inventors:
Tomohisa Yoshikawa
Takashi Hanada
Junichi Takeda
Takashi Hanada
Junichi Takeda
Application Number:
JP2013174014A
Publication Date:
November 29, 2017
Filing Date:
August 23, 2013
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
International Classes:
B02C23/06; C04B7/52; C04B24/22; C04B28/02
Domestic Patent References:
| JP2010208888A | ||||
| JP2007071456A | ||||
| JP7187843A | ||||
| JP10504514A | ||||
| JP56073035A | ||||
| JP2010163344A | ||||
| JP2010159179A | ||||
| JP2009262095A |
Foreign References:
| WO2013089271A1 |
Attorney, Agent or Firm:
Norihiko Arai
Naoyuki Koda
Naoyuki Koda
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