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- Title
ROCHAS ORNAMENTAIS SILICÁTICAS DO ESTADO DE PERNAMBUCO.
- Authors
Oliveira, F. M. C.; Kálix, T. M. F.; Barros, M. L. S. C.; Melo, E. B.; Morais, P. O. B.
- Abstract
Dimension stones are materials that add value through standard color, design, texture and grain. According to Mendes e Paiva (2002), Pernambuco is inserted in the Borborema Province of evolution marked by great tectonics mobility, alternating compressive and extensional regimes. In the region there were 3 distinct tectonic events, in which deposits of non-oriented rocks (granitoid) and moved rocks (orthogneisses and migmatites). Ten litho types were cataloged: Red Brown, Samba Red, Salmão Lagoa, Imperial Pink, Frevo Granite, moved rocks, and Sunset Red, Red Ventura, Red Ipanema, Yellow Ipanema, being the “Imperial Brown” the one that stands out most commercially, isotropic materials. The physical indices of seven of these materials suited to values determined by Frazão & Farjallat (1996), while the compressive strengths of four rocks are below this chart. Only one rock has lower flexural strength and other low resistance to trampling. The physical and mechanical properties of the rocks of Pernambuco, compared to those proposed by Frazão & Farjallat (1996) attest good quality materials and can be used on surfaces with high trafficability; high mechanical strength; low absorption and porosity indicate their suitability for wet locations noting, however the mineralogical composition.
- Subjects
PERNAMBUCO (Brazil); BUILDING stones; CONSTRUCTION materials; STRUCTURAL geology; MIGMATITE
- Publication
HOLOS, 2013, Vol 29, Issue 4, p3
- ISSN
1807-1600
- Publication type
Article