Cement additive composition

Details Cement additive composition Cement additive composition

1985-08-26

1987-04-07

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106314, 524 4, 524 5, 524 6, C04B 735

Patent

active

046558381

ABSTRACT:
When a cement-based mixture such as cement paste, mortar and concrete is admixed with the inventive cement additive composition, the cement-based mixture is imparted with lastingly improved flowability and hence workability. The cement additive composition of the invention comprises (a) 100 parts by weight of a saponified product of (a half ester of) a copolymer of styrene and maleic acid and (b) from 5 to 900 parts by weight of a flowability improving agent such as a salt of a condensation product of naphthalene sulfonic acid with formaldehyde, salt of a condensation product of an alkylnaphthalene sulfonic acid with formaldehyde, salt of a condensation product of a sulfonated creosote oil with formaldehyde and the like.

REFERENCES:
patent: 3563930 (1971-02-01), Stram
patent: 3952805 (1976-04-01), Persinski et al.
patent: 4367094 (1983-01-01), Fujimaru et al.

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