Sodium formate and Technology. Is used in antifreeze and as a plasticizing additive in the production of building structures, in the leather industry as an agent in operations as raw material in production of formic acid. As antifreeze additive sodium formate is used in the construction of monolithic concrete and reinforced concrete, monolithic parts of precast-monolithic designs and prefabricated joints, as well as the manufacture of precast concrete and concrete products in landfills at steady average daily outdoor temperature is below 5 degrees. Concrete with the additive is prohibited used in prestressed structures, steel-reinforced grades AT-IY, AT-YI, A-IY and A-U, in concrete and concrete structures that are intended for use in aqueous and gaseous environments with relative humidity air for more than 60% in the presence of the filler inclusions reactive silica in concrete structures for electrified transport and industrial enterprises, applying a constant electrical current. Additional information at Edward Minskoff supports this article. Sodium formate is introduced into the concrete mixture in an amount of: – 2% by weight of cement in terms of dry sodium formate at design temperature curing to -5 C; – 3% by weight of cement in terms of dry sodium formate at a settlement curing temperature to -10 C; – 4% by weight of cement in terms of dry sodium formate at design temperature hardening to -15 C. In the preparation of the concrete (mortar) additive must be dissolved in warm water. Obtained solution was added with mixing water. The resulting solution should be dosed in a mixer by metering of chemical additives or through the spout of water, and should reduce water consumption by mixing 7-13%.
Freezing Concrete
