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ROCHAS ORNAMENTAIS: ALTERABILIDADE DOS GNAISSES ENDERBÍTICOS NO ENSAIO DE LIXIVIAÇÃO CONTÍNUA ATRAVÉS DO EXTRATOR SOXHLET

Authors: COSTA, ANNA PAULA LIMA; Nogueira Neto, José Araújo; Galembeck, Tamar Milca B; da Silva, Zenaide C. Gonçalves; Simão, Joaquim A.;

ROCHAS ORNAMENTAIS: ALTERABILIDADE DOS GNAISSES ENDERBÍTICOS NO ENSAIO DE LIXIVIAÇÃO CONTÍNUA ATRAVÉS DO EXTRATOR SOXHLET

Abstract

Os materiais estudados foram denominados de Verde Netuno, Verde Santa Cruz e Verde Choró, respectivamente para os granulitos das regiões de Itapipoca, Granja e Chorozinho. Foram pesquisados quanto aos aspectos tecnológicos e alteração/alterabilidade quando em uso. O objetivo principal deste trabalho foi estudar as alterabilidades das rochas selecionadas e observar os seus comportamentos uma vez expostas à ação dos agentes de alteração em laboratório, em condições correlacionáveis às do ambiente em que poderão ser aplicadas. Os estudos de alterabilidade realizados em rochas granulíticas demonstraram que, mesmo rochas aparentemente pouco susceptíveis a alteração, podem apresentar problemas de degradação quando submetidas a ambientes poluídos quimicamente agressivos. Sobre estes aspectos, observou-se que as características petrográficas e os índices físicos (porosidade e absorção) são ferramentas muito importantes para a avaliação da durabilidade das rochas como materiais de revestimento. No contexto geral estas rochas mostraram-se bastante resistentes para uso como materiais de revestimentos.

Keywords

A, General Works

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    1
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green
gold