Cement admixture having superior water-reducing properties...

Details Cement admixture having superior water-reducing properties... Cement admixture having superior water-reducing properties...

2005-09-06

2005-09-06

Marcantoni, Paul (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S727000, C106S728000, C106S823000, C524S002000

Reexamination Certificate

active

06939402

ABSTRACT:
The present invention provides a cement admixture that comprises at least one of a carboxylic acid based copolymer comprising a reactive surfactant as a monomer or a copolymer salt obtained by neutralizing the copolymer with an alkaline substance, a method for preparing the same, and a cement composition comprising the same. The cement admixture of the present invention increases composition fluidity even at a high water-reducing formulation by improving dispersibility of cement particles, prevents a decrease of fluidity as the function of time, and offers good workability by supplying an adequate amount of air flow continuously.

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