Vértices (Jan 2014)

Durability analysis of gneiss using wear resistance

  • José Luiz Ernandes Dias Filho,
  • Gustavo de Castro Xavier,
  • Paulo César de Almeida Maia

DOI
https://doi.org/10.5935/1809-2667.20130025
Journal volume & issue
Vol. 15, no. 3
pp. 07 – 16

Abstract

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This paper presents a study conducted in gneiss in Santo Antonio de Pádua, RJ, BR, including durability analysis of the rock using slake durability test. Rocks in the region of Pádua are mostly used for ornamental purposes. A lab equipment was developed to evaluate the influence of rotation in the test, allowing for the speed variation of 7 RPM to 238 RPM. This study could be implemented in a wide variety of rock materials, targeting them according to their lifetime in the project. With variation of the wear levels, increasing weight loss was observed until the inertia moment in which the sample holds to the machine wall. The results indicate an increase in linear mass loss. These procedures allow a more precise analysis of durability than can be applied in different different regions of the world.

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