Prevention of slump loss in fresh concrete

Details Prevention of slump loss in fresh concrete Prevention of slump loss in fresh concrete

1980-08-26

1981-12-29

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106314, C04B 735

Patent

active

043080693

ABSTRACT:
Slump loss in fresh concrete is prevented by adding a powdery or granular barium, magnesium, iron or aluminum salt of a .beta.-naphthalenesulfonic acid-formaldehyde condensate to the cement or concrete composition. About 0.01 to 10 parts by weight of the condensate per 100 parts by weight of cement, preferably Portland cement, are employed.

REFERENCES:
patent: 3788868 (1974-01-01), Kitsuda et al.
patent: 4164426 (1979-08-01), Sinka et al.
patent: 4686133 (1972-08-01), Hattori et al.

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