Sound absorption of recycled gypsum matrix composites with residual cellulosic pulp and expanded polystyrene

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dc.contributor.authorde Oliveira, Karina A. [UNESP]
dc.contributor.authorBarbosa, Juliana C. [UNESP]
dc.contributor.authorChristoforo, André L.
dc.contributor.authorMolina, Julio C. [UNESP]
dc.contributor.authorOliveira, Carolina A.B. [UNESP]
dc.contributor.authorBertolini, Marilia S. [UNESP]
dc.contributor.authorGava, Maristela [UNESP]
dc.contributor.authorVentorim, Gustavo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.date.accessioned2019-10-06T17:18:32Z
dc.date.available2019-10-06T17:18:32Z
dc.date.issued2019-01-01
dc.description.abstractThis work aimed to study the technical feasibility of using industrial gypsum, expanded polystyrene (EPS), and cellulose solid wastes in the production of acoustic insulation panels for buildings. Five traces of acrylic gypsum matrix were produced with variations in the proportions of cellulosic pulp and EPS and always maintaining the same proportion of recycled gypsum and water. The composites produced were tested according to the ISO 10534-2 (2015) standard for the determination of the coefficient of sound absorption and ABNT NBR 14715-2 (2010) for bending tests. The results didn't show statistically significant differences in the coefficient of sound absorption with variations in the quantities of each material. However, the sonic frequency of the tests directly influenced the results, presenting a better performance at a low frequency (250 Hz). The results qualify the composite produced for use as acoustic insulation and can be used in plates for sound reflection in buildings in places where it doesn't require resistance to great stresses.en
dc.description.affiliationDepartment of Mechanical Engineering UNESP - São Paulo State University
dc.description.affiliationCollege of Timber Industrial Engineering UNESP - São Paulo State University
dc.description.affiliationDepartament of Civil Engineering UFSCar - Federal University of São Carlos
dc.description.affiliationUnespDepartment of Mechanical Engineering UNESP - São Paulo State University
dc.description.affiliationUnespCollege of Timber Industrial Engineering UNESP - São Paulo State University
dc.format.extent4806-4813
dc.identifierhttp://dx.doi.org/10.15376/biores.14.2.4806-4813
dc.identifier.citationBioResources, v. 14, n. 2, p. 4806-4813, 2019.
dc.identifier.doi10.15376/biores.14.2.4806-4813
dc.identifier.issn1930-2126
dc.identifier.lattes280120880255759
dc.identifier.lattes4442058033045499
dc.identifier.orcid0000-0002-1846-436X
dc.identifier.scopus2-s2.0-85071088733
dc.identifier.urihttp://hdl.handle.net/11449/190596
dc.language.isoeng
dc.relation.ispartofBioResources
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAcoustic insulation
dc.subjectComposites
dc.subjectRecycled gypsum
dc.subjectRecycled materials
dc.subjectSolid waste
dc.titleSound absorption of recycled gypsum matrix composites with residual cellulosic pulp and expanded polystyreneen
dc.typeArtigo
unesp.author.lattes280120880255759
unesp.author.lattes4442058033045499
unesp.author.orcid0000-0002-1846-436X

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