METHOD OF PREVENTING CORROSION OF IRON OR STEEL IN CONCRETE

摘要

One or more hydroxyalkylamines having molecular weights ranging from about 48 to about 500 and vapor pressure at 20 C ranging from about 10<-><4> to about 10<1> mm. of mercury are employed as the major ingredient of a corrosion inhibiting composition that itself is mixed into a hydraulic cement slurry. The hydroxyalkylamines provide corrosion protection to iron or steel reinforcing members embedded within the concrete but do not substantially affect the air entraining capacity of the slurry.