Análise financeira do uso do vergalhão de aço inoxidável e vergalhão polimérico revestido de fibra de vidro em substituição ao vergalhão de aço carbono nas estruturas de concreto armadoe aço carbono nas estruturas de concreto armado

Abstract

With the advent of the performance standard in Brazil, there is increasing concern about the durability of structures. The structural characteristics of concrete and the beginning of the corrosion process of reinforcement in reinforced concrete are directly linked to the durability of the structure. New materials are being developed to replace conventional carbon steel rebar with the aim of improving the performance of structures and prolonging the onset of the reinforcement corrosion process, but there is still a lack of knowledge about the effects of using these new materials on the durability of the structure. In this sense, it is necessary to know the detailed characteristics of each material, as well as the advantages and disadvantages of using them in the structure and their possible effect on durability. An analysis from a financial point of view of the use of stainless steel and polymeric rebar reinforced with glass fibers compared to carbon steel rebar in a structure demonstrates the uniqueness of each of the solutions.