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Title: Hydraulic tiles produced with fine aggregates and pigments reclaimed from iron ore tailings.
Authors: Fontes, Wanna Carvalho
Carvalho, José Maria Franco de
Silva, Keoma Defáveri do Carmo e
Silva, Guilherme Jorge Brigolini
Segadães, Ana Maria Bastos Costa
Peixoto, Ricardo André Fiorotti
Keywords: Iron ore tailings
Ceramic pigments
Recycled aggregate
Hydraulic tiles
Issue Date: 2021
Citation: FONTES, W. C. et al. Hydraulic tiles produced with fine aggregates and pigments reclaimed from iron ore tailings. Journal of Sustainable Metallurgy, v. 7, p. 151-165, jan. 2021. Disponível em: <>. Acesso em: 12 set. 2021.
Abstract: Confronted with the growing ecological awareness of the consumer market, the construction industry has been seeking strategies to promote a higher insertion of waste in the production chain while contributing to the technological improvement of processes and products, as well as mitigation of social and environmental impacts and, at the same time, conferring intangible value to the product. In this sense, the present work describes how iron ore tailings (IOT) can be used in the production of cement-based (hydraulic) tiles. The physical, chemical, and mineralogical characterizations carried out demonstrated that the IOT benefciation (segregation) process resulted in a high-quality siliceous aggregate and a Fe-rich clay. The latter can be used as a pigment, whose pigmentation and cementing potentials improve with calcination and grinding. Compared to hydraulic tiles prepared with conventional materials, those obtained with the IOT-based materials displayed a pleasing appearance and the expected physical–mechanical performance.
ISSN: 2199-3831
Appears in Collections:DECIV - Artigos publicados em periódicos

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