Fremgangsmåte for å redusere avskalling av betong på grunn av frysing og opptining, anvendelse av natrium-monofluorfosfat for dette formål, samt ikke-forsterket betong

摘要

A concrete surface having at least a residual amount of sodium fluorophosphate. A method to reduce scaling due to freezing and thawing is also disclosed. The method comprises contacting the surface of a concrete with a system containing at least sodium fluorophosphate. The sodium fluorophosphate closes the pores to water and other foreign matter.