Effects of incorporation of construction and demolition residues on the adhesion of coating mortars

Authors

  • Jordania dos Santos Rocha Instituto Tocantinense Presidente Antônio Carlos Porto
  • Taís Gomes Instituto Tocantinense Presidente Antônio Carlos
  • Ericles Bruno Muniz Novais Instituto Tocantinense Presidente Antônio Carlos Porto http://orcid.org/0000-0002-2612-981X
  • Francisco Adriano Rodrigues Duarte Instituto Tocantinense Presidente Antônio Carlos Porto

DOI:

https://doi.org/10.6008/CBPC2318-3055.2019.001.0009

Keywords:

RCD, Mortars, Coating, Grip

Abstract

The recycling of construction and demolition waste (RCD) is a solution for the conservation of non-renewable natural resources extracted by the construction sector, besides contributing to the reduction of costs and environmental impacts. RCD can be used in the form of recycled aggregates, in partial or total replacement to natural aggregates used in concrete and mortar to meet the needs of the construction industry. With regard to coating mortars, the main property to be evaluated is the adhesion with the substrate. Thus, the objective of this work was to evaluate the effects of replacing the small aggregate by recycled aggregate on the consistency and tensile strength of mixed coating mortars. The RCD samples were collected in a vacant lot in the city of Porto Nacional (TO), then classified and ground. Characterization tests were carried out in order to allow the use of the material as minute aggregate. The results of the bond strength test, obtained for different types of recycled aggregate (ceramic, cement and mixture of both), were compared in order to determine the performance of the different mortars evaluated. The methodology used followed the procedures defined by ABNT standards.

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Author Biographies

Jordania dos Santos Rocha, Instituto Tocantinense Presidente Antônio Carlos Porto

Graduanda em Engenharia Civil. Atua principalmente nos seguintes temas: sustentabilidade., resíduo de construção e demolição e pavimentação.

Taís Gomes, Instituto Tocantinense Presidente Antônio Carlos

Engenheira Civil pela Universidade Federal de Santa Maria (2010-2015) e Mestra na área de Construção Civil e Preservação Ambiental, também pela Universidade Federal de Santa Maria (2015-2017). Tem experiência na área de Engenharia Civil, com ênfase em Construção Civil, e experiência na área de Projetos, com ênfase em PPCI. Como professora adjunta, ministrou as disciplinas de Materiais I e II, Construção Civil I e II, Gerenciamento de Obras e Patologia e Terapêutica das Construções para o curso de Engenharia Civil da ITPAC Porto Nacional, e a disciplina de Orçamento para o curso de Arquitetura e Urbanismo da mesma instituição (2017-2018).

Ericles Bruno Muniz Novais, Instituto Tocantinense Presidente Antônio Carlos Porto

Técnico em Informática e graduando na área de Engenharia Civil 8º Período pela instituição de ensino superior Faculdade Presidente Antonio Carlos - Porto Nacional - ITPAC-PORTO/FAPAC.

Francisco Adriano Rodrigues Duarte, Instituto Tocantinense Presidente Antônio Carlos Porto

Tem experiência na área de Engenharia Civil, com ênfase em Engenharia Civil. Acadêmico do 10° período de Engenharia Civil.

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Published

2019-06-20

Issue

Vol. 7 No. 1 (2019): Engineering Sciences - Dez 2018, Jan, Fev, Mar 2019

Section

Engenharia de Materiais

License

The CBPC - Companhia Brasileira de Produção Científica (Brazil CNPJ: 11.221.422/0001-03) the material rights of the published works. The rights relate to the publication of the work anywhere in the world, including rights to renewals, expansions and dissemination of the contribution, as well as other subsidiary rights. All electronically published works may subsequently be published in printed collections under the coordination of this company and / or its partners. The authors preserve the copyright, but are not allowed to publish the contribution in another medium, printed or digital, in Portuguese or in translation.