ABSTRACT
Repairing, maintaining and retrofitting existing Reinforced Concrete (RC) structures and infrastructures arises today not only as a possible perspective, but also as a necessity for the growth and development of our cities In particular, the need to upgrade infrastructures to the increasing demand of traffic and to the performance requirements introduced by new technical regulations requires the development of innovative materials and technologies for the rehabilitation and retrofitting of existing structures. Among new materials, the use of High Performance Concrete (HPC) for structural reinforcement may be advantageous because, on one hand, it has a high chemical-physical compatibility with the substrate and, on the other, for the possibility to apply the reinforcing material in layers of a reduced thickness.
