Per: Maria Luiza Pessanha Menezes Gomes (Universidade Estadual do norte fluminense darcy ribeiro), Elaine Aparecida santos carvalho (universidade estadual do norte fluminense darcy ribeiro ), carlos maurício fontes vieira (UNIVERSIDADE ESTADUAL DO NORTE FLUMINENSE DARCY RIBEIRO ), Gabriela NUNES SALES BARRETO (UNIVERSIDADE ESTADUAL DO NORTE FLUMINENSE DARCY RIBEIRO )
Abstract:
The production of artificial stone from granite waste bonded by polymeric resins, in addition to being an ecological alternative capable of reducing the environmental impacts caused by the improper disposal of this waste, is caused from a technical and economic point of view. Especially with the use of polyurethane derived from castor oil, as it is a resin from a natural source. This work aimed to compare the mechanical properties of two types of artificial granite with different polymer matrices: epoxy and vegetable polyurethane, as called RAGE and RAPU respectively, both produced from the vacuum vibro coating method. For this purpose, a three-point bending test, analysis of the micrographs by SEM and an abrasive wear test were carried out. Through the obtained results it can be concluded that both the RAGE and the RAPU showed good mechanical performance, however the RAGE was superior with a rupture tension of 32.92MPa, being able to be considered for pavement of high traffic and with lower content of voids in its microstructure. Such facts can be explained by the high degree of intercrossing of the polymeric chains and crystallinity of the epoxy resin