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dc.creatorOLIVEIRA, Dênio Ramam Carvalho de-
dc.creatorROSSI, Carlos Rodrigo Costa-
dc.identifier.citationOLIVEIRA, Dênio Ramam Carvalho de; ROSSI, Carlos Rodrigo Costa. Concretes with red mud coarse aggregates. Materials Research, São Carlos, v. 15, n. 3, p. 333-340, jun. 2012. Disponível em: <>. Acesso em: 13 nov. 2015. <>.pt_BR
dc.description.abstractRed mud (RM) is a mineral waste, residue of the Bayer process used to obtain alumina from bauxite. While the exploration of rolled pebble damages the environment and is much more controlled by the government, the huge RM disposal areas do not stop increasing and polluting soil, rivers and groundwater sources in Amazon. In this work, the material mixtures used to produce coarse aggregates presented up to 80% of RM, 30% of metakaolin and 30% of active silica as recycled waste. Several tests were carried out to determine the aggregates physical properties and to evaluate the mechanical performance of the concretes with the new aggregates, including hydraulic abrasion strength, and the results were compared to the reference ones, i.e. rolled pebble concretes. Additionally, the sintering process neutralizes any toxic substance as occur in some RM products like tiles and bricks, and these results have encouraged an industrial or semi-industrial production of RM aggregates for concretes.pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectResíduos sólidospt_BR
dc.subjectLama vermelhapt_BR
dc.subjectAgregados (Materiais de construção)pt_BR
dc.subjectAbrasão hidráulicapt_BR
dc.subjectDegradação ambientalpt_BR
dc.subjectAmazônia brasileirapt_BR
dc.titleConcretes with red mud coarse aggregatespt_BR
dc.typeArtigo de Periódicopt_BR
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