Seismic improvement of reinforced concrete structures and historic buildings

摘要

The use of polymer-modified mor-far and epoxy resins combined with carbon fibres, aramid and glass based fabrics has shown the flaws of such systems in the structural reinforcement of civil and historical buildings. In particular, in view of the numerous benefits offered over more traditional systems, nowadays considered as no longer effective, such as enlarged portions, metal plating, with an increase in weights and long working times in the construction site, the so called FRP reinforcing systems (Fiber Reinforced Polymer), which are still widely used and considered as a solution to the various problems at the construction site, however, show several flaws in terms of total lack of breathability, problems with moisture and too high or too low temperatures during the application, resin combustibility and flammability, resulting in compatibility and reversibility problems with the substrate on which they are applied (reinforced concrete or masonry).