Method and device for protecting reinforcement, in particular prestressed reinforcement

摘要

The invention relates to a method for protecting reinforcement, in particular prestressed reinforcement, in civil engineering works by injecting grease or a similar fluid product. Grease at a temperature equal to or exceeding the mean of the extreme temperatures to which the grease will be subjected during use is injected into the duct or ducts 2 containing the reinforcement. At least one closed expansion vessel having a membrane 7 is placed on the duct or ducts and the level of grease inside the duct or ducts is adjusted in order to bring the pressure in the expansion vessel or vessels to the pressure corresponding to the equilibrium pressure of the expansion vessel at the temperature of the injected grease. <IMAGE>