RAPID MEASUREMENT OF THE CHLORIDE PERMEABILITY OF CONCRETE

The paper deals with the deterioration of concrete bridge decks and discusses the methods of restoration of highway system bridge decks. This article describes the development of a device and test procedure that can assess rapidly the permeability of various kinds of concretes to chloride ions. The method consists of monitoring the amount of electrical current passed through a concrete specimen when a potential difference of 60 to 80 volts dc is maintained across the specimen for 6 hours.