Title:
スラッジを用いた即時脱型コンクリート製品の製造方法
Document Type and Number:
Japanese Patent JP4633287
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing promptly demoldable concrete products capable of most effectively utilizing sludge produced in a centrifugal molding process of concrete products and utilizing a large amount of the sludge. SOLUTION: The sludge produced in the centrifugal molding process of centrifugal force high-strength prestressed concrete piles, etc., is added to the freshly kneaded concrete before the end of coagulation and the concrete products are molded by a demolding method. This sludge is usable as it is without any specific dewatering treatment and is added in the amount of >=25 wt.% of the unit cement weight to the cement, by which the promptly demoldable concrete products are produced and simultaneously the sludge heretofore treated as waste can be efficiently treated in the form of recycling a large amount thereof.
Inventors:
Shisho Hayashi
Shunji Adachi
Tadaaki Odajima
Keizo Fujikawa
Shunji Adachi
Tadaaki Odajima
Keizo Fujikawa
Application Number:
JP2001080213A
Publication Date:
February 16, 2011
Filing Date:
March 21, 2001
Export Citation:
Assignee:
Taiheiyo Cement Co., Ltd.
Japan High Pressure Concrete Co., Ltd.
Nippon Hume Co., Ltd.
Toyo Asano Co., Ltd.
Japan High Pressure Concrete Co., Ltd.
Nippon Hume Co., Ltd.
Toyo Asano Co., Ltd.
International Classes:
C04B28/02; B28B1/08; B28B3/02; C04B18/16; C04B24/06
Domestic Patent References:
| JP632846A |
Other References:
社団法人日本コンクリート工学協会,コンクリート便覧,日本,技報堂出版,1996年 2月15日,第2版,第693-695頁,特に、1.2.3 成形の項を参照
Attorney, Agent or Firm:
Satoshi Kumon
Kumon enjoyment
Hisako Yasuko
Kumon enjoyment
Hisako Yasuko