Limestone Waste Incorporation in Clayey Mass for Rustic Ceramic Tiles Manufacturing

Abstract:

In the south of Ceará (Brazil), Cariri region, there is a production center for roof tiles and bricks. At that same region, there has been an expressive mining of laminated limestone, known as Pedra Cariri (Cariri Stone), which has produced large amounts of CaCO₃-rich waste, that causes undesirable impacts to the environment. This work aimed to analyze the feasibility of producing rustic ceramic tiles, made up of clayey masses used in the region with the addition of this waste, aiming at the diversification of red ceramic products in a sustainable way. The mixtures were pressed, fired in maximum firing temperature which varies from 750° to 1150oC and had their physical-mechanical characteristics tested. The results indicated that the clayey mass is composed of kaolinite, feldspar and quartz, while montmorillonite and/or vermiculite is only found in roof tile clayey mass. The waste is mainly made of calcite. In general, the values of water absorption were compatible with porous rustic ceramic tile and the addition of Pedra Cariri waste provided lower values of firing shrinkage as well as the increase of the flexural strength. The samples of roof tile clayey mass (10% of waste at 850°C and at 1150°C) obtained physical-mechanical property values that match Brazilian technical norms to BIII type ceramic tile. Therefore, the mixture formulated with tile clayey mass and limestone waste presents potential to be utilized in the manufacture of ceramic roof tiles.

• Periodical: Materials Science Forum (Volume 1012)
• Pages: 221-226
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1012.221
• Online since: October 2020
• Authors: A.M.M. Santos, A.C.A. Prado, M.B.M. Matos, P.H.A. Feitosa*, J.H.A. Feitosa, T.M.E. Alves
• Keywords: Ceramic Tile, Limestone Waste, Red Clays, Sustainability

References

[1] Information on https://www.anfacer.org.br/historia-ceramica.

[2] C.C. Filho: O Setor Brasileiro de Rochas Ornamentais. (Associação Brasileira da Indústria de Rochas Ornamentais - ABIROCHAS, Brasília, 2018).

DOI: 10.11606/d.18.2007.tde-07052008-085848

[3] F.W.H. Vidal et al.: Aplicações industriais dos calcários do Cariri cearense, Congresso Brasileiro de Rochas Ornamentais 3 CETEM/MCTI Rio de Janeiro, (2008).

[4] J.C.G. Correia, F.W.H. Vidal, R.C.C. Ribeiro: Caracterização Tecnológica dos Calcários do Cariri do Ceará, Simpósio de Rochas Ornamentais do Nordeste, 5, CETEM/PPGEMinas Rio de Janeiro, (2006).

[5] A. Barba et al.: Materias Primas Para La Fabricación De Suportes De Baldosas Cerámicas. (Instituto de Tecnología Cerámica second ed., Castellón Espanha, 2002).

[6] Information on https://abceram.org.br/revestimento-ceramico_/#localização.

[7] Associação Brasileira de Normas Técnicas. Solo: Determinação do limite de liquidez. Rio de Janeiro: ABNT, 2016. (NBR 6459).

[8] Associação Brasileira de Normas Técnicas. Solo: Determinação do limite de Plasticidade. Rio de Janeiro: ABNT 2016. (NBR 7180).

[9] Associação Brasileira De Normas Técnicas. Placas cerâmicas para revestimentos - especificação e métodos de ensaios. Rio de Janeiro: ABNT 1997. (NBR 13818).

[10] E. Sanchez et al.: Cerâmica Industrial Vol. 1 (1996), pp.13-22.

[11] S.J.G. Sousa: Desenvolvimento de massas cerâmicas processadas por via seca com matérias-primas do norte fluminense visando aplicação em revestimento poroso. Universidade Estadual do Norte Fluminense, Campos Dos Goytacazes, Rio de Janeiro, (2008).

DOI: 10.21475/ajcs.2016.10.09.p7747

[12] J.C.S. Oliveira, B.B. Lira, Y.P. Yadava, C.M.M. Silva, T.W.G. Santos: Cerâmica Industrial Vol. 16 (2011), p.34.