Acid formates for use as setting and early strength development

Details Acid formates for use as setting and early strength development Acid formates for use as setting and early strength development

1979-11-06

1981-04-14

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106315, C04B 735

Patent

active

042617553

ABSTRACT:
This invention relates to the use of sodium, calcium and ammonium salts of formic acid as early strength developers and setting accelerators in hydraulic cements, concretes, mortars and plasters. The salts used are acidic salts containing between 1.5 and 5 moles of the formate ion per mole of the cation. These salts have much greater solubility and are more effective than the corresponding calcium salts, particularly under low temperature conditions.

REFERENCES:
patent: 3210207 (1965-10-01), Dodson et al.
patent: 3619221 (1971-11-01), Kossivas
patent: 3801338 (1974-04-01), Whitaker
patent: 4116706 (1978-09-01), Previte
patent: 4191584 (1980-03-01), Berry

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