Development of Sustainable Artificial Stone Using Granite Waste and Biodegradable Polyurethane from Castor Oil

Maria Luiza Pessanha Menezes Gomes, Elaine Aparecida Santos Carvalho, Gabriela Nunes Sales Barreto, Rubén Jesus Sánchez Rodriguez, Sérgio Neves Monteiro and Carlos Maurício Fontes Vieira
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Maria Luiza Pessanha Menezes Gomes: Advanced Materials Laboratory—LAMAV, State University of the Northern Rio de Janeiro—UENF, Av. Alberto Lamego 2000, Campos dos Goytacazes 28013-602, Brazil
Elaine Aparecida Santos Carvalho: Advanced Materials Laboratory—LAMAV, State University of the Northern Rio de Janeiro—UENF, Av. Alberto Lamego 2000, Campos dos Goytacazes 28013-602, Brazil
Gabriela Nunes Sales Barreto: Advanced Materials Laboratory—LAMAV, State University of the Northern Rio de Janeiro—UENF, Av. Alberto Lamego 2000, Campos dos Goytacazes 28013-602, Brazil
Rubén Jesus Sánchez Rodriguez: Advanced Materials Laboratory—LAMAV, State University of the Northern Rio de Janeiro—UENF, Av. Alberto Lamego 2000, Campos dos Goytacazes 28013-602, Brazil
Sérgio Neves Monteiro: Department of Materials Science, Military Engineering Intitute—IME, Praça General Tibúrcio 80, Praia Vermelha, Urca, Rio de Janeiro 22290-270, Brazil
Carlos Maurício Fontes Vieira: Advanced Materials Laboratory—LAMAV, State University of the Northern Rio de Janeiro—UENF, Av. Alberto Lamego 2000, Campos dos Goytacazes 28013-602, Brazil

Sustainability, 2022, vol. 14, issue 11, 1-11

Abstract: Brazil is one of the world’s major ornamental stone producers. As a consequence, ornamental stone wastes are generated on a large scale and are usually open air disposed. Thus, it is important to develop novel material reusing these accumulated wastes, aiming to minimize environmental impact. The development of artificial stones made with ornamental stone wastes agglomerated by a synthetic polymer represents an excellent alternative and, therefore, is currently the subject of several works. This work seeks to develop an innovative artificial stone containing 85%wt of granite waste and 15%wt of vegetable polyurethane from castor oil, a biodegradable resin, from a renewable source. The purpose is creating a sustainable material, technically viable to be applied as a civil construction coating. To manufacture the artificial stone plates, granite and polyurethane were mixed and transferred to a metallic mold subjected to vibration, vacuum and, later, hot compression. The artificial stone presented low water absorption (0.13%) and apparent porosity (0.31%) as well as a favorable 17.31 MPa bend strength. These results were confirmed through the excellent particles/matrix adhesion displayed in the micrographs, in addition to great chemical resistance.

Keywords: artificial stone; vegetable polyurethane; granite waste (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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