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Title:
CONCRETE COMPOSITION FOR CENTRIFUGAL MOLDING AND METHOD OF PRODUCING CONCRETE PRODUCT USING THE SAME
Document Type and Number:
Japanese Patent JP2008297185
Kind Code:
A
Abstract:

To provide a concrete composition for centrifugal molding which can reduce sludge generation, sludge solid portion and sludge solid ratio without deteriorating the moldability in the molding or the performance of a concrete product and enabling the optimum formulation to be determined and a method of producing the concrete product using the composition by centrifugal molding.

The method of producing the concrete product uses the concrete composition for centrifugal molding which contains a polycarboxylic acid based water reducing agent having polyoxyalkylene group (where, the number of carbons is 2-4) at the side chain in such a quantity that the solid portion of the water reducing agent is 0.03-0.20 wt.% based on the quantity of a binder and 30 wt.% water is contained. In the method of producing the concrete product, the concrete product is obtained by applying a centrifugal molding process to the composition.


Inventors:
NISHIMURA TADASHI
ANDO TETSUYA
SHIMAMURA NORIYUKI
Application Number:
JP2007147674A
Publication Date:
December 11, 2008
Filing Date:
June 04, 2007
Export Citation:
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Assignee:
GRACE CHEMICALS KK
International Classes:
C04B28/02; B28B1/20; B28B21/30; C04B24/26; C04B111/56
Domestic Patent References:
JP2004210589A2004-07-29
JPH08295547A1996-11-12
JP2005219404A2005-08-18
JP2001172068A2001-06-26
JP2000143314A2000-05-23
JPH0986990A1997-03-31
JP2004210587A2004-07-29
JP2003342051A2003-12-03
JP2005219404A2005-08-18
JP2001172068A2001-06-26
JP2000143314A2000-05-23
JPH0986990A1997-03-31
JP2004210587A2004-07-29
Foreign References:
WO2006006712A12006-01-19
Attorney, Agent or Firm:
Kiko Okada
Fujiwara no Teishi



 
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