Title:
METHOD FOR PRODUCING CONCRETE
Document Type and Number:
Japanese Patent JP2004010432
Kind Code:
A
Abstract:
To provide a method for producing concrete which reduces fluctuations and deterioration over time of fluidity even when materials used are altered especially in producing concrete with a low water-cement ratio.
The method for producing the concrete is characterized by using together two or more kinds of polycarboxylic acid-based water reducers with different capabilities of keeping fluidity of the concrete. A polycarboxylic acid-based water reducer with a superior capability of keeping fluidity is preferably used together with a polycarboxylic acid-based water reducer which has a good water reducing capability immediately after mixing but has an inferior capability of keeping fluidity.
Inventors:
YAMADA KAZUO
Application Number:
JP2002166594A
Publication Date:
January 15, 2004
Filing Date:
June 07, 2002
Export Citation:
Assignee:
TAIHEIYO CEMENT CORP
International Classes:
C04B28/02; C04B24/26; C04B103/30; (IPC1-7): C04B28/02; C04B24/26
Domestic Patent References:
JP2001302306A | 2001-10-31 | |||
JPH0940446A | 1997-02-10 | |||
JP2001019514A | 2001-01-23 | |||
JP2002274909A | 2002-09-25 |
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