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PROPRIEDADES TERMOFÍSICAS DE COMPÓSITO DE MATRIZ DE GESSO E FIBRA VEGETAL

Authors: Marinho, George Santos; Cunha, Paulo Waldemiro Soares; Gomes, Uílame Umbelino;

PROPRIEDADES TERMOFÍSICAS DE COMPÓSITO DE MATRIZ DE GESSO E FIBRA VEGETAL

Abstract

Foi desenvolvido um compósito de matriz de gesso e reforço de fibra vegetal (Cocos nucifera) destinado à fabricação de elementos construtivos (e. g., placas para forração de coberturas e painéis de vedação). Corpos de prova foram produzidos na forma de sanduíche de gesso / fibra / gesso. Duas espessuras diferentes da fatia de fibra foram consideradas: 8 mm e 10 mm. Um corpo de prova de gesso sem a fatia de fibra foi fabricado para servir como padrão de comparação. Utilizando-se um equipamento analisador térmico, foram realizados ensaios para determinação das seguintes propriedades termofísicas dos corpos de prova: condutividade térmica (k), capacidade térmica volumétrica (?.CP) e difusividade térmica (?). A partir dos resultados foi possível evidenciar vantagens do compósito em relação ao padrão. O menor valor de k conferiu ao compósito uma maior capacidade de isolação, possibilitando redução da carga térmica no interior das edificações devido à radiação solar. Nsse aspecto, o compósito se mostra adequado ao uso como elemento de vedação em edificações situadas em localidades de baixas latitudes (e. g., região Nordeste do Brasil). Além das vantagens citadas, o compósito pode proporcionar mais leveza e economia de material, possibilitando a produção de elementos construtivos mais esbeltos.

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    popularity
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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!
3
Average
Average
Average
Green
gold