Corrosion inhibiting additive for cement compositions

Details Corrosion inhibiting additive for cement compositions Corrosion inhibiting additive for cement compositions

C - Chemistry, Metallurgy

04

B

261/52, 31/55

C04B 22/08 (2006.01) C04B 24/06 (2006.01) C04B 28/04 (2006.01)

Patent

CA 1197370

ABSTRACT Additive compositions for Portland cement compositions are disclosed which provide the corrosion inhibition of calcium nitrite without the corresponding set acceleration. The additive compositions are stable, single phase aqueous solutions consisting essentially of water and, as solutes, a major amount of weight of calcium nitrite and a minor amount by weight of corn syrup, a hydroxycarboxylic acid, or an alkali metal or alkaline earth metal salt of a hydroxycarboxylic acid.

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