Abstract:
their reinforcement, clearly showing the effect of carbonation of concrete.
This structure represents a construction solution particularly used in the 40s to 50s of the
twentieth century in several Lisbon areas. It was used for giving access to the patio and for
evacuation in case of emergency and, normally, was located in the back of the building.
The complete replacement of the carbonated concrete cover was achieved by a high quality
polymer cement mortar (PCM), of styrene-butadiene polymer dispersion.
This paper describes the different activities undertaken during the rehabilitation, the
problems encountered during the works and, finally, the lessons learnt from this project.
