Thermal performance of sisal fiber-cement roofing tiles for rural constructions
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100001 |
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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oai:scielo:S0103-90162011000100001 |
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USP-18 |
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Scientia Agrícola (Online) |
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|
spelling |
Thermal performance of sisal fiber-cement roofing tiles for rural constructionscellulose pulppolypropylene fiberthermal comfortparallel hot-wire methodthermal conductivityRoofing 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.Escola Superior de Agricultura "Luiz de Queiroz"2011-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100001Scientia Agricola v.68 n.1 2011reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162011000100001info:eu-repo/semantics/openAccessTonoli,Gustavo Henrique DenzinSantos,Sérgio Francisco dosRabi,José AntonioSantos,Wilson Nunes dosSavastano Junior,Holmereng2011-01-13T00:00:00Zoai:scielo:S0103-90162011000100001Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2011-01-13T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
title |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
spellingShingle |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions Tonoli,Gustavo Henrique Denzin cellulose pulp polypropylene fiber thermal comfort parallel hot-wire method thermal conductivity |
title_short |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
title_full |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
title_fullStr |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
title_full_unstemmed |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
title_sort |
Thermal performance of sisal fiber-cement roofing tiles for rural constructions |
author |
Tonoli,Gustavo Henrique Denzin |
author_facet |
Tonoli,Gustavo Henrique Denzin Santos,Sérgio Francisco dos Rabi,José Antonio Santos,Wilson Nunes dos Savastano Junior,Holmer |
author_role |
author |
author2 |
Santos,Sérgio Francisco dos Rabi,José Antonio Santos,Wilson Nunes dos Savastano Junior,Holmer |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Tonoli,Gustavo Henrique Denzin Santos,Sérgio Francisco dos Rabi,José Antonio Santos,Wilson Nunes dos Savastano Junior,Holmer |
dc.subject.por.fl_str_mv |
cellulose pulp polypropylene fiber thermal comfort parallel hot-wire method thermal conductivity |
topic |
cellulose pulp polypropylene fiber thermal comfort parallel hot-wire method thermal conductivity |
description |
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. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000100001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-90162011000100001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.68 n.1 2011 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936462356709376 |