| Registro completo |
| Provedor de dados: |
Scientia Agricola
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| País: |
Brazil
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| Título: |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions
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| Autores: |
Tonoli,Gustavo Henrique Denzin
Santos,Sérgio Francisco dos
Rabi,José Antonio
Santos,Wilson Nunes dos
Savastano Junior,Holmer
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| Data: |
2011-02-01
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| Ano: |
2011
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| Palavras-chave: |
Cellulose pulp
Polypropylene fiber
Thermal comfort
Parallel hot-wire method
Thermal conductivity
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| Resumo: |
Roofing provides the main protection against direct solar radiation in animal housing. Appropriate thermal properties of roofing materials tend to improve the thermal comfort in the inner ambient. Nonasbestos fiber-cement roofing components reinforced with cellulose pulp from sisal (Agave sisalana) were produced by slurry and dewatering techniques, with an optional addition of polypropylene fibers. Nonasbestos tiles were evaluated and compared with commercially available asbestos-cement sheets and ceramic tiles (frequently chosen as roofing materials for animal housing). Thermal conductivity and thermal diffusivity of tiles were determined by the parallel hot-wire method, along with the evaluation of the downside surface temperature. Cement-based components reinforced with sisal pulp presented better thermal performance at room temperature (25ºC), while those reinforced with sisal pulp added by polypropylene fibers presented better thermal performance at 60ºC. Non-asbestos cement tiles provided more efficient protection against radiation than asbestos corrugated sheets.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100001
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| Editor: |
São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
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| Relação: |
10.1590/S0103-90162011000100001
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| Formato: |
text/html
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| Fonte: |
Scientia Agricola v.68 n.1 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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