Improvement of the Acoustic Attenuation of Plaster Composites by the Addition of Short-Fibre Reinforcement

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dc.contributor.authorKulhavý Petrcs
dc.contributor.authorSamková Alžbětacs
dc.contributor.authorPetrů Michalcs
dc.contributor.authorPechočiaková Miroslavacs
dc.date.accessioned2018-09-25T12:19:52Z
dc.date.available2018-09-25T12:19:52Z
dc.date.issued2018cs
dc.description.abstractNoise attenuation is a key contemporary issue associated with the protection of human health. In this study, the possibilities of affecting acoustic properties of plaster composites by the addition of short-fibre reinforcement are described. The improvement of attenuation abilities was first verified using a simple numerical model with a pure plaster followed by using a reinforced plaster. The model results revealed a mutual correlation between the fibre ratio and dissipated acoustic energy. Hence, typical plasters used in the building industry (e.g., plaster, lime cement, and cement) are used as the base materials of the tested composites. The reinforcing dispersion in the form of short fibres (basalt and glass) with a defined length was selected after evidence from previously reported studies and after the comparison of some other fibres with respect to the trade-off between the rendered mechanical properties and cost. Transfer functions of the tested samples were measured using an impedance tube with two microphones, followed by the calculation of the total acoustic absorption. On the other hand, cement and plaster materials exhibited a low damping ability, and the absorption could be considerably increased by the addition of fibres, especially in the area around 1 kHz. In contrast, the UM plaster exhibited good damping properties even without the dispersion, and the addition of improper fibres such as glass ones possibly worsened the properties. The acoustic attenuation of the plaster composites can be improved by the appropriate combination of the base material and fibre dispersion. However, it is not possible to generalise this improvement for all possible combinations.en
dc.format.extent15cs
dc.identifier.doi10.1155/2018/7356721
dc.identifier.issn1687-8434cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/32025
dc.identifier.urihttps://www.hindawi.com/journals/amse/2018/7356721/
dc.language.isoengcs
dc.publisherHindawi Publishing Corporationcs
dc.relation.ispartofseries1cs
dc.relation.urihttps://www.hindawi.com/journals/amse/2018/7356721/cs
dc.rights.otherCopyright © 2018 P. Kulhavý et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://www.hindawi.com/journals/amse/2018/7356721/
dc.subjectCEMENT COMPOSITEScs
dc.subject1/F NOISEcs
dc.subjectPERFORMANCEcs
dc.subjectABSORPTIONcs
dc.subjectPARAMETERScs
dc.subjectPANELScs
dc.titleImprovement of the Acoustic Attenuation of Plaster Composites by the Addition of Short-Fibre Reinforcementen
dc.titleImprovement of the Acoustic Attenuation of Plaster Composites by the Addition of Short-Fibre Reinforcementcs
local.identifier.publikace5497
local.identifier.wok000433302300001en
local.relation.issueMay 2018cs
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