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MATERIAIS UTILIZADOS EM REFORÇOS DE ESTRUTURAS DE CONCRETO: MAPEAMENTO LITERÁRIO
DOI:
https://doi.org/10.5216/reec.v19i1.75163Palavras-chave:
Reforço, Concreto, Estruturas, Compósitos, Mapeamento literárioResumo
RESUMO: Embora possuam alta resistência mecânica, as estruturas de concreto armado estão sujeitas a falhas que podem reduzir sua durabilidade e/ou inviabilizar o seu uso, seja por mudanças de utilização ou erros executivos. Assim, foram desenvolvidos ao longo dos anos variados materiais e métodos de reparos e reforços estruturais eficientes para tal finalidade. Logo, este estudo tem como objetivo demonstrar o desenvolvimento do estado da arte, evidenciando a relevância do assunto na atualidade identificando lacunas de conhecimento e apresentando como se deu o desenvolvimento do tema ao longo dos anos. Para tanto, foi realizado um mapeamento literário sobre o tema. Elaborou-se uma string de busca para filtrar artigos relacionados ao assunto no portal de periódicos da CAPES, sendo selecionados artigos de periódicos para análise. Foi realizada uma análise bibliométrica e qualitativa de modo a servir como parâmetro para pesquisadores no aprofundamento de estudos na linha de materiais para reforços de estruturas de concreto. Concluiu-se que dentre os vários materiais promissores para o uso em reforço de estruturas de concreto, nota-se a relevância dos Polímeros Reforçados com Fibras (PRF) e os compósitos cimentícios. Ambos se destacaram no mapeamento literário como os grupos com mais artigos publicados, predominando no meio científico e, portanto, com maior potencial de aplicabilidade no mercado.
ABSTRACT: Although they have high mechanical resistance, reinforced concrete structures are subject to failures that can reduce their durability or make their use unfeasible, either due to changes in use or executive errors. Thus, over the years, various materials and methods of repairs and efficient structural strengthening have been developed for this purpose. This study aims to demonstrate the development of the state of the art, highlighting the relevance of the topic in the present, identifying knowledge gaps and presenting how the theme has developed over the years. For that, a literary mapping on the subject was carried out. A search string was elaborated to filter articles related to the subject in the CAPES journal portal, and journal articles were selected for analysis. A bibliometric and qualitative analysis was carried out, to serve as a parameter for researchers, in the deepening of studies in the line of materials for strengthening of reinforced concrete structures. It was concluded that, among the various promising materials for use in strengthening reinforced concrete structures, the relevance of Fiber Reinforced Polymers (FRP) and cementitious composites can be noted. Both stood out in the literary mapping as the groups with the most published articles, predominating in the scientific environment and, therefore, with greater potential for applicability in the market.
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