Title:
CEMENT GRINDING AID AND CEMENT GRINDING METHOD
Document Type and Number:
Japanese Patent JP2009078953
Kind Code:
A
Abstract:
To provide a cement grinding aid preventing deterioration in long-term strength of cement obtained by using diethylene glycol while keeping the grinding efficiency of the obtained cement and keeping initial strength promoting effect of the obtained cement and a cement grinding method.
The cement grinding aid is made by blending ethylene glycol and diethylene glycol in a ratio of (30:70)-(70:80) by mass.
Inventors:
Ono, Akira
Inokawa, Takashi
Suda, Chiyuki
Saito, Kanehiro
Yamada, Takashi
Kimijima, Takeyuki
Inokawa, Takashi
Suda, Chiyuki
Saito, Kanehiro
Yamada, Takashi
Kimijima, Takeyuki
Application Number:
JP2007000250353
Publication Date:
April 16, 2009
Filing Date:
September 27, 2007
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD
International Classes:
C04B7/52; B02C23/06