Influência de agregados reciclados de resíduos de construção nas propriedades mecânicas do concreto
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Data
2016-02-08
Título da Revista
ISSN da Revista
Título de Volume
Editor
Ricardo Prado Abreu Reis
Resumo
The material loss in civil construction is large, which results in a great amount of construction waste. The latest environmental standards in Brazil do not allow that wastes are indiscriminately disposed of, and it is necessary to ensure their adequate final destination or, whenever possible, their reuse. The greater amount of construction waste is made up of concrete and mortar, called “grey waste”. The aim of this paper is analyze the replacement of natural aggregates with coarse recycled aggregates from grey construction waste. Several concrete mixes were produced with various substitution percentages (0%, 19%, 43%, 75%, 100%) of natural aggregates with coarse recycled aggregates to evaluate the influence of this substitution on the fresh and mechanical properties of the concrete. The most important mechanical properties analyzed are the compressive strength and modulus of elasticity. The results show that it is possible to replace up to 100% of the natural aggregate with recycled aggregates without reducing the compressive strength. In this case, the modulus of elasticity is reduced by only 12%. This suggests that recycled aggregates can be used in the production of structural concretes.
Descrição
v. 11, n. 1, p. 16-34, jan./jun. 2016.
Palavras-chave
Concreto estrutural, Agregados reciclados, Resíduos de construção, Structural concrete, Recycled aggregates, Construction waste
Citação
ARAÚJO, Daniel de Lima; FELIX, Ludmylla Pires; SILVA, Leonardo Costa e; SANTOS, Thiago Martins dos. Influência de agregados reciclados de resíduos de construção nas propriedades mecânicas do concreto. Revista Eletrônica de Engenharia Civil, Goiânia, v. 11, n. 1, p. 16-34, jan./jun. 2016. Disponível em: < https://www.revistas.ufg.br/index.php?journal=reec&page=article&op=view&path%5B%5D=35467&path%5B%5D=pdf>.