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Återbruk av akustikplattor: Experimentering på olika återbruksmöjligheter för takabsorbenter
Dalarna University, School of Information and Engineering.
Dalarna University, School of Information and Engineering.
2025 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Reusing sound absorbers : Experimentation on different options for reusing ceiling absorbers (Swedish)
Abstract [en]

This thesis investigates the possibility of recycling dismantled acoustic panels by covering them with different textile materials or increasing the thickness by placing two panels on top of each other, with the aim of increasing the possibilities of recycling by improving their sound absorption ability and appearance.Three reusing options were tested; one being 40 mm sound absorbers that were covered in wool fabric and the other with the same thickness covered in a thin sheet, while the third solution was doubling of 15 mm panels. The measurements of absorption coefficients and reverberation time were carried out in a scaled-down reverberation room with regard to ISO 354:2003. The results showed that all tested options improved sound absorption, where the wool textile gave the greatest improvement followed by the sheet. The doubling of 15 mm sound absorbers gave lower results than covering absorbers with textiles, which shows that the surface layer and structure of the material play an important role in the sound absorption ability of the ceiling absorbers. Despite methodological limitations, such as background noise, insufficient sound level and lack of ISO-standardized test conditions, this study clearly shows that reusing acoustic panels with textiles is a possible and effective alternative to new production and throwing them in a landfill. The study contributes with practically applicable knowledge and shows potential for further development in reusing materials and sustainability.

Abstract [sv]

Detta examensarbete undersöker möjligheten att återbruka på nedmonterade akustikplattor genom att klä dem med textilmaterial alternativt öka tjockleken genom att placera absorbenterna på varandra, i syfte att öka möjligheterna av återbruk genom att förbättra deras ljudabsorberande förmåga och utseende. Tre återbrukslösningar undersöktes, en var 40 mm absorbenter som var inklädd i ull och den andra med samma tjocklek inklädd i ett tunt lakan, medan den tredje var två 15 mm plattor staplade på varandra. Mätningar av absorptionskoefficienter och efterklangstid genomfördes i ett nerskalat efterklangsrum med hänsyn till ISO354:2003. Resultaten visade att alla testade lösningar förbättrade ljudabsorptionen, där ulltextilen gav störts förbättring följt av lakanet. Stapling av15 mm plattor på varandra gav lägre resultat än vid inklädnad, vilket visar att materialets ytskikt och struktur spelar en viktig roll på takabsorbenternas ljudabsorptionsförmåga.Trots metodologiska begränsningar, såsom bakgrundsbuller, otillräcklig ljudnivå för testet och avsaknad av ISO-standardiserade testförhållande, visar arbetet tydligt att återbruk av akustikplattor med textiler är ett möjligt och effektiv alternativ till nyproduktion och deponering. Studien bidrar med praktiskt tillämpbar kunskap och visar potential för vidare utveckling inom återbruk och hållbarhet.

Place, publisher, year, edition, pages
2025.
Keywords [en]
Reuse, Building Materials, Acoustics, Sound Absorbers, Textiles, Wool
Keywords [sv]
Återbruk, Byggmaterial, Akustik, Ljudabsorbenter, Textil, Ull
National Category
Building materials
Identifiers
URN: urn:nbn:se:du-50798OAI: oai:DiVA.org:du-50798DiVA, id: diva2:1978450
Subject / course
Construction
Available from: 2025-06-27 Created: 2025-06-27 Last updated: 2025-10-09

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
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  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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